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Cisco 2500 Series

Cisco 2500 Series

Cisco 2500 Series

This chapter provides information on the Cisco 2500 series routers. The information is organized into the following sections:

Note Documentation for the Cisco 2500 series is available in two forms: on a CD-ROM called Cisco Connection Documentation, Enterprise Series, and printed books. A CD and hard-copy installation documentation ship with each chassis, and a configuration note ships with each component ordered. All configuration notes are available on the CD. Additional CDs and a subscription CD update service are also available.

You can also access Cisco technical documentation on the World Wide Web URL http://www.cisco.com. For more information, see the chapter "Documentation" at the end of the catalog.


Product Overview

The Cisco 2500 series routers provide a variety of models designed for small office and remote site environments. Each model supports at least two of the following interfaces:

Cisco 2500 routers come with Flash EPROM technology for simplified software maintenance. These systems support a variety of Cisco IOS software feature sets, so you can choose a feature set that supports your specific protocol environment. The software feature sets range from an IP and bridging-only to the full array of Cisco's software functionality, including APPN and RMON.

Mission-specific models contain less memory and less hardware functionality in order to support a subset of protocols. Each mission-specific model can be upgraded to full router capability by downloading a new Cisco IOS software feature set and, if necessary, adding memory.

Cisco 2500 series models can be divided into the following categories:

Table 140 : Cisco 2500 Series Router Product Numbers

Model Description Product Number
Cisco 2501 1 Ethernet, 2 serial, AC power supply CISCO2501
Cisco 2501-DC 1 Ethernet, 2 serial, DC power supply CISCO2501-DC
Cisco 2501CF1 2 serial, CFRAD software, AC power supply CISCO2501CF
Cisco 2501LF 1 Ethernet, 2 serial, LAN FRAD software, AC power supply CISCO2501LF
Cisco 2502 1 Token Ring, 2 serial, AC power supply CISCO2502
Cisco 2502CF1 2 serial, CFRAD software, AC power supply CISCO2502CF
Cisco 2502LF 1 Token Ring, 2 serial, LAN FRAD software, AC power supply CISCO2502LF
Cisco 2503 1 Ethernet, 2 serial, 1 ISDN BRI, AC power supply CISCO2503
Cisco 2503-DC 1 Ethernet, 2 serial, 1 ISDN BRI, DC power supply CISCO2503-DC
Cisco 2503I1 1 Ethernet, 1 ISDN BRI, ISDN software, AC power supply CISCO2503I
Cisco 2503I-DC1 1 Ethernet, 1 ISDN BRI, ISDN software, DC power supply CISCO2503I-DC
Cisco 2504 1 Token Ring, 2 serial, 1 ISDN BRI, AC power supply CISCO2504
Cisco 2504-DC 1 Token Ring, 2 serial, 1 ISDN BRI, DC power supply CISCO2504-DC
Cisco 2504I1 1 Token Ring, 1 ISDN BRI, ISDN software, AC power supply CISCO2504I
Cisco 2505 8 Ethernet UTP hub ports, 2 serial, AC power supply CISCO2505
Cisco 2505-DC 8 Ethernet UTP hub ports, 2 serial, DC power supply CISCO2505-DC
Cisco 2507 16 Ethernet UTP hub ports, 2 serial, AC power supply CISCO2507
Cisco 2507-DC 16 Ethernet UTP hub ports, 2 serial, DC power supply CISCO2507-DC
Cisco 25092 1 Ethernet, 2 serial, 8 async serial, AC power supply CISCO2509
Cisco 2509-DC2 1 Ethernet, 2 serial, 8 async serial, DC power supply CISCO2509-DC
Cisco 25102 1 Token Ring, 2 serial, 8 async serial, AC power supply CISCO2510
Cisco 25112 1 Ethernet, 2 serial, 16 async serial, AC power supply CISCO2511
Cisco 2511-DC2 1 Ethernet, 2 serial, 16 async serial, DC power supply CISCO2511-DC
Cisco 25122 1 Token Ring, 2 serial, 16 async serial, AC power supply CISCO2512
Cisco 2513 1 Ethernet, 1 Token Ring, 2 serial, AC power supply CISCO2513
Cisco 2514 2 Ethernet, 2 serial, AC power supply CISCO2514
Cisco 2514-DC 2 Ethernet, 2 serial, DC power supply CISCO2514-DC
Cisco 2515 2 Token Ring, 2 serial, AC power supply CISCO2515
Cisco 2516 14 Ethernet UTP hub ports, 2 sync serial, 1 ISDN BRI, AC power supply CISCO2516
Cisco 2516-DC 14 Ethernet UTP hub ports, 2 sync serial, 1 ISDN BRI, DC power supply CISCO2516-DC
Cisco 2517 11 Token Ring UTP hub ports, 2 sync serial, 1 ISDN BRI, AC power supply CISC02517
Cisco 2518 23 Ethernet UTP hub ports, 2 sync serial, 1 ISDN BRI, AC power supply CISCO2518
Cisco 2519 23 Token Ring UTP hub ports, 2 sync serial, 1 ISDN BRI, AC power supply CISCO2519
Cisco 2520 1 Ethernet, 2 high-speed sync serial, 2 low-speed async/sync serial, 1 ISDN BRI interface, AC power supply CISCO2520
Cisco 2520-DC 1 Ethernet, 2 high-speed sync serial, 2 low-speed async/sync serial, 1 ISDN BRI interface, DC power supply CISCO2520-DC
Cisco 2520CF1 2 high-speed sync serial, 2 low-speed async/sync serial, CFRAD software, AC power supply CISCO2520CF
Cisco 2520LF1 1 Ethernet, 2 high-speed sync serial, 2 low-speed async/sync serial, LAN FRAD software, AC power supply CISCO2520LF
Cisco 2521 1 Token Ring, 2 high-speed sync serial, 2 low-speed async/sync serial, 1 ISDN BRI interface, AC power supply CISCO2521
Cisco 2521-DC 1 Token Ring, 2 high-speed sync serial, 2 low-speed async/sync serial, 1 ISDN BRI interface, DC power supply CISCO2521-DC
Cisco 2521CF1 2 high-speed sync serial, 2 low-speed async/sync serial, CFRAD software, AC power supply CISCO2521CF
Cisco 2521LF1 1 Token Ring, 2 high-speed sync serial, 2 low-speed async/sync serial, LAN FRAD software, AC power supply CISCO2521LF
Cisco 2522 1 Ethernet, 2 high-speed sync serial, 8 low-speed async/sync serial, 1 ISDN BRI interface, AC power supply CISCO2522
Cisco 2522-DC 1 Ethernet, 2 high-speed sync serial, 8 low-speed async/sync serial, 1 ISDN BRI interface, DC power supply CISCO2522-DC
Cisco 2522CF1 2 high-speed sync serial, 8 low-speed async/sync serial, CFRAD software, AC power supply CISCO2522CF
Cisco 2522LF1 1 Ethernet, 2 high-speed sync serial, 8 low-speed async/sync serial, LAN FRAD software, AC power supply CISCO2522LF
Cisco 2523 1 Token Ring, 2 high-speed sync serial, 8 low-speed async/sync serial, 1 ISDN BRI interface, AC power supply CISCO2523
Cisco 2523-DC 1 Token Ring, 2 high-speed sync serial, 8 low-speed async/sync serial, 1 ISDN BRI interface, DC power supply CISCO2523-DC
Cisco 2523CF1 2 high-speed sync serial, 8 low-speed async/sync serial, CFRAD software, AC power supply CISCO2523CF
Cisco 2523LF1 1 Token Ring, 2 high-speed sync serial, 8 low-speed async/sync serial, LAN FRAD software, AC power supply CISCO2523LF
Cisco 2524 1 Ethernet (AUI or 10BaseT) with 3 slots for WAN modules, AC power supply CISCO2524
Cisco 2524-DC 1 Ethernet (AUI or 10BaseT) with 3 slots for WAN modules, DC power supply CISCO2524-DC
Cisco 2525 1 Token Ring (STP or UTP) with 3 slots for WAN modules, AC power supply CISCO2525

1 Mission-specific router. Mission-specific routers are based on standard Cisco 2500 hardware, but they contain less memory and run reduced Cisco IOS images that diable unused ports and support a subset of protocols. By adding software, and possibly memory, mission-specific routers can be upgraded to full standard router functionality.
2 See the chapter "Access Servers," later in this catalog, for more information.


Standard Features

fig_2.gif

All the Cisco 2500 series models support the features listed in Table 141.

Table 141 : Cisco 2500 Series Summary of Features

Characteristic Feature
Flash memory All models include a minimum of 4 MB of Flash memory; however, depending on the Cisco IOS release that shipped with the system, it might require more memory. Refer to Table 145 and Table 146, later in this chapter, for the minimum Flash memory required for each feature set.1
DRAM memory expandability All models include the minimum DRAM required by the Cisco IOS release that shipped with the system. Refer to Table 145 and Table 146, later in this chapter, for the minimum DRAM required for each feature set.
Processor type 20-MHz 68030
Choice of software feature sets
Cisco IOS Release 11.1, 11.0, 10.3, and 10.2 IP Routing
IP Routing with IBM base functionality
IP/IPX Routing
IP/IPX Routing with IBM base functionality
IP/IPX with IBM base functionality and APPN2
Desktop
Desktop with IBM base functionality
Enterprise
Enterprise/APPN2
RMON
Mission-specific Cisco 2500 series: application-specific software
Cisco IOS Release 11.2 IP Routing
IP Routing Plus
IP/IPX with IBM base functionality and APPN
Desktop (IP/IPX/Appletalk/DEC)
Desktop (IP/IPX/Appletalk/DEC) Plus
Enterprise
Enterprise Plus
Enterprise/APPN/Plus
Mission-specific Cisco 2500 series: application-specific software
Dimensions (H x W x D) Models 2501 to 2516 and 2520 to 2525: 1.75 x 17.5 x 10.56" (4.44 x 44.45 x 26.82 cm)
Models 2517 to 2519: 3.0 x 19.0'' (7.62 x 48.26 cm)
Weight (average shipping) Models 2501 to 2516 and 2520 to 2525: 10 lb (4.5 kg)
Models 2517 to 2519: 12.5 lb (5.7 kg)
Standard components Power supply and cord
Console cable kit3
RJ-45-to-DB-9 adapter
19" rack-mount/wall-mount kit

1 For Cisco IOS Release 11.0 and later, if your system requires more than 4MB of Flash memory, the additional memory must be ordered separately. For Cisco IOS releases prior to 11.0, the system includes the minimum memory required by the CiscoIOS release that shipped with the system.
2 This feature set is available with Cisco IOS Release 11.0 and later releases.
3 The console cable kit includes an RJ-45-to-RJ-45 roll-over console cable, an RJ-45-to-DB-25 male DCE adapter, an RJ-45-to-DB-25 female DTE adapter, and an RJ-45-to-DB-9 female DTE adapter.

The environmental specifications for the Cisco 2500 series are listed in Table 142.

Table 142 : Cisco 2500 Series Environmental Specifications

Description Specification
Consumption For models 2501 to 2525: 40W
Input For models 2501 to 2516 and 2520 to 2525: 110 to 220 VAC, 50 to 60 Hz --48 VDC
For models 2517 to 2519: 90 to 260 VAC, 47 to 63 Hz
Current rating For models 2501 to 2516 and 2520 to 2525: 1.0 A at 60 Hz, 0.5 A at 50 Hz
For models 2517 to 2519: 5.0 A at 60 Hz, 3.5 A at 50 Hz
Operating temperature range For models 2501 to 2516 and 2520 to 2525: 32 to 104°F (0 to 40°C)
For models 2517 to 2519: 50 to 95°F (10 to 35°C)
Nonoperating temperature range For models 2501 to 2516 and 2520 to 2525: --40 to 185°F (--40 to 85°C)
For models 2517 to 2519: --4 to 185°F (--20 to 85°C)
Humidity (noncondensing) For models 2501 to 2525: 5 to 95%


Software Options

fig_1.gif

The Cisco 2500 series routers support the following software releases:

Note that entry-level, mission-specific models are not listed because software is included with the hardware. For more information about missionspecific software, refer to Table 154.

fig_4.gif

With the introduction of Cisco IOS Release 11.2, feature sets have been updated to make it easier to select the exact feature sets you need. Feature sets names are simplified and are more consistent across Cisco hardware platforms. In addition, you can add options to the standard feature set offerings. These options provide additional features and value based on the hardware platform selected. Cisco also continues to offer specialized feature sets for key applications.

The Cisco 2500 series offers the following types of feature sets:

Cisco IOS images with 40-bit Data Encryption Standard (DES) support may legally be distributed to any party eligible to receive Cisco IOS software. 40-bit DES is not a cryptographically strong solution and should not be used to protect sensitive data.

Cisco IOS images with 56-bit DES are subject to International Traffic in Arms Regulations (ITAR) controls and have a limited distribution. Images to be installed outside the U.S. require an export license. Orders may be denied or subject to delays due to U.S. Government regulations. Contact your sales representative or distributor for more information, or send e-mail to export@cisco.com.

The new feature set tables use the following conventions to identify features:

Table 143 : Cisco IOS Release 11.2, 11.1, 11.0, 10.3, and 10.2 Feature Sets---Cisco 2500 Series

Cisco 2500 Series Feature Sets
Features IP Routing IP/IPX/
IBM/
APPN1 		IP/IPX Routing2 Desktop (IP/IPX/Appletalk/DEC) Enterprise3
Cisco IOS Release 11.2 11.1 11.0 10.3 10.2 11.2 11.1 11.0 10.3 10.2 11.2 11.1 11.0 10.3 10.2 11.2 11.1 11.0 10.3 10.2
LAN Support
Apollo Domain -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X X X
AppleTalk 1 and 24 -- -- -- -- -- -- -- -- -- -- X X X X X X X X X X
Banyan VINES -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X X X
Concurrent routing and bridging X X X -- -- X X X -- -- X X X -- -- X X X -- --
DECnet IV -- -- -- -- -- -- -- -- -- -- X X X X X X X X X X
DECnet V -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X X X
GRE X X X X X X X X X X X X X X X X X X X X
Integrated routing and bridging (IRB)5 X -- -- -- -- X -- -- -- -- X -- -- -- -- X -- -- -- --
IP X X X X X X X X X X X X X X X X X X X X
LAN extension host X X X X X X X X X X X X X X X X X X X X
Multiring X X X X -- X X X X -- X X X X -- X X X X --
Novell IPX6 -- -- -- -- -- X X X X X X X X X X X X X X X
OSI -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X X X
Source-route bridging7 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X
Transparent and translational bridging7 X X X X X X X X X X X X X X X X X X X X
XNS -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X X X
WAN Services
Combinet Packet Protocol (CPP) X -- -- -- -- X -- -- -- -- X -- -- -- -- X -- -- -- --
Dialer profiles X -- -- -- -- X -- -- -- -- X -- -- -- -- X -- -- -- --
Frame Relay X X X X X X X X X X X X X X X X X X X X
Frame Relay SVC Support (DTE) -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X -- -- -- --
Frame Relay traffic shaping X -- -- -- -- X -- -- -- -- X -- -- -- -- X -- -- -- --
Half bridge/half router for
CPP and PPP 		X -- -- -- -- X -- -- -- -- X -- -- -- -- X -- -- -- --
HDLC X X X X X X X X X X X X X X X X X X X X
IPXWAN 2.0 -- -- -- -- -- X X X X X X X X X X X X X X X
ISDN8 X X X X X X X X X X X X X X X X X X X X
Multichassis Multilink PPP (MMP) -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X -- -- -- --
PPP9 X X X X X X X X X X X X X X X X X X X X
SMDS X X X X X X X X X X X X X X X X X X X X
Switched 56 X X X X X X X X X X X X X X X X X X X X
Virtual Private Dial-up Network (VPDN) -- -- -- -- -- -- -- -- -- -- X -- -- -- -- X -- -- -- --
X.2510 X X X X X X X X X X X X X X X X X X X X
WAN Optimization
Bandwidth-on-demand X X X X X X X X X X X X X X X X X X X X
Custom and priority queuing X X X X X X X X X X X X X X X X X X X X
Dial backup X X X X X X X X X X X X X X X X X X X X
Dial-on-demand X X X X X X X X X X X X X X X X X X X X
Header11, link and payload compression12 X X X X X X X X X X X X X X X X X X X X
Snapshot routing X X X X X X X X X X X X X X X X X X X X
Weighted fair queuing X X X -- -- X X X -- -- X X X -- -- X X X -- --
IP Routing
BGP X X X X X X X X X X X X X X X X X X X X
BGP413 X -- -- -- -- X -- -- -- -- X -- -- -- -- X -- -- -- --
EGP X X X X X X X X X X X X X X X X X X X X
Enhanced IGRP X X X X X X X X X X X X X X X X X X X X
Enhanced IGRP Optimizations X -- -- -- -- X -- -- -- -- X -- -- -- -- X -- -- -- --
ES-IS -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X X X
IGRP X X X X X X X X X X X X X X X X X X X X
IS-IS -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X X X
Named IP Access Control List -- -- -- -- -- -- -- -- -- -- X -- -- -- -- X -- -- -- --
Network Address Translation (NAT) Plus -- -- -- -- -- -- -- -- -- Plus -- -- -- -- Plus -- -- -- --
NHRP X X X X -- X X X X -- X X X X -- X X X X --
On Demand Routing (ODR) X -- -- -- -- X -- -- -- -- X -- -- -- -- X -- -- -- --
OSPF X X X X X X X X X X X X X X X X X X X X
OSPF Not-So-Stubby-Areas (NSSA) X -- -- -- -- X -- -- -- -- X -- -- -- -- X -- -- -- --
OSPF On Demand Circuit
(RFC 1793) 		X -- -- -- -- X -- -- -- -- X -- -- -- -- X -- -- -- --
PIM X X X X X X X X X X X X X X X X X X X X
Policy-based routing X X X -- -- X X X -- -- X X X -- -- X X X X X
RIP X X X X X X X X X X X X X X X X X X X X
RIP Version 2 X X -- -- -- X X -- -- -- X X -- -- -- X X -- -- --
Other Routing
AURP -- -- -- -- -- -- -- -- -- -- X X X X X X X X X X
IPX RIP -- -- -- -- -- X X X X X X X X X X X X X X X
NLSP14 -- -- -- -- -- X X X X -- X X X X -- X X X X --
RTMP -- -- -- -- -- -- -- -- -- -- X X X X X X X X X X
SMRP -- -- -- -- -- -- -- -- -- -- X X X -- -- X X X -- --
SRTP -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X X X
Multimedia and Quality of Service
Generic traffic shaping X -- -- -- -- X -- -- -- -- X -- -- -- -- X -- -- -- --
Random Early Detection (RED) X -- -- -- -- -- -- -- -- -- X -- -- -- -- X -- -- -- --
Resource Reservation Protocol (RSVP) X -- -- -- -- -- -- -- -- -- X -- -- -- -- X -- -- -- --
Management
AutoInstall X X X X X X X X X X X X X X X X X X X X
Automatic modem configuration15 X X -- -- -- X X -- -- -- X X -- -- -- X X -- -- --
HTTP Server X -- -- -- -- X -- -- -- -- X -- -- -- -- X -- -- -- --
RMON events and alarms16 Plus X -- -- -- X X -- -- -- Plus X -- -- -- Plus X -- -- --
RMON full Plus -- -- -- -- -- -- -- -- -- Plus -- -- -- -- Plus -- -- -- --
SNMP X X X X X X X X X X X X X X X X X X X X
Telnet X X X X X X X X X X X X X X X X X X X X
Security
Access lists X X X X X X X X X X X X X X X X X X X X
Access security X X X X X X X X X X X X X X X X X X X X
Extended access lists X X X X X X X X X X X X X X X X X X X X
Kerberized login -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X -- -- --
Kerberos V client support -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X -- -- -- --
Lock and key X -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X -- -- --
MAC security for hubs17 X X -- -- -- X X -- -- -- X X -- -- -- X X -- -- --
MD5 routing authentication X X X -- -- X X X -- -- X X X -- -- X X X -- --
Network layer encryption (export controlled 40-bit and 56-bit DES)18 Encrypt -- -- -- -- -- -- -- -- -- Encrypt -- -- -- -- Encrypt -- -- -- --
RADIUS X X -- -- -- X X -- -- -- X X -- -- -- X X -- -- --
Router authentication Encrypt -- -- -- -- -- -- -- -- -- Encrypt -- -- -- -- Encrypt -- -- -- --
TACACS+19 X X X X X X X X X X X X X X X X X X X X
IBM Support (Optional)
APPN (optional)3 -- -- -- -- -- X X X -- -- -- -- -- -- -- X X X -- --
BAN for SNA Frame Relay support Plus X X -- -- X X X -- -- Plus X X -- -- X X X -- --
Bisync20 Plus X X -- -- X X X -- -- Plus X X -- -- X X X -- --
Caching and filtering Plus X X X X X X X X X Plus X X X X X X X X X
DLSw+ 21 Plus X X X -- X X X X -- Plus X X X -- X X X X --
Downstream PU concentration (DSPU) -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X -- --
Frame Relay SNA support (RFC 1490) Plus X X X X X X X X X Plus X X X X X X X X X
Native Client Interface Architecture (NCIA) Server Plus -- -- -- -- X -- -- -- -- Plus -- -- -- -- X -- -- -- --
NetView Native Service Point Plus X X -- -- X X X -- -- Plus X X -- -- X X X -- --
QLLC20 Plus X X -- -- X X X -- -- Plus X X -- -- X X X X X
Response Time Reporter (RTR) Plus -- -- -- -- -- -- -- -- -- Plus -- -- -- -- X -- -- -- --
SDLC integration Plus X X X -- X X X X -- Plus X X X -- X X X X X
SDLC transport (STUN) Plus X X X -- X X X X -- Plus X X X -- X X X X X
SDLC-to-LAN conversion (SDLLC) Plus X X X -- X X X X -- Plus X X X -- X X X X X
SNA and NetBIOS WAN optimization
via local acknowledgment 		Plus X X X X X X X X X Plus X X X X X X X X X
SRB/RSRB7, 22 Plus X X X X X X X X -- Plus X X X X X X X --
SRT Plus X X X -- X X X X -- Plus X X X -- X X X X --
TG/COS -- -- -- -- -- -- -- -- -- -- -- -- -- X -- X X X X X
TN3270 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X X X
Protocol Translation
LAT -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X X X
Rlogin -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X X X
Remote Node23
ARAP 1.0/2.0 -- -- -- -- -- -- -- -- -- -- X X X X X X X X X X
Asynchronous master interfaces X X X -- -- X X X -- -- X X X -- -- X X X -- --
ATCP24 -- -- -- -- -- -- -- -- -- -- X X X X -- X X X X --
CPPP X X X X X X X X X X X X X X X X X X X X
CSLIP X X X X X X X X X X X X X X X X X X X X
DHCP X X X X -- X X X X -- X X X X -- X X X X --
IP pooling X X X -- -- X X X -- -- X X X -- -- X X X -- --
IPX and ARAP on virtual asynch interfaces -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X -- --
IPXCP11 -- -- -- -- -- X X X X X X X X X X X X X X X
MacIP -- -- -- -- -- -- -- -- -- -- X X X X X X X X X X
NASI25 -- -- -- -- -- X X -- -- -- X X X -- -- X X X -- --
NetBEUI over PPP X X X -- -- X X -- -- -- X X X -- -- X X X -- --
PPP X X X X X X X X X X X X X X X X X X X X
SLIP X X X X X X X X X X X X X X X X X X X X
Terminal Services23
LAT26 -- -- -- -- -- -- -- -- -- -- -- -- -- X X X X X
Rlogin X X X X X X X X X X X X X X X X X X X X
Telnet X X X X X X X X X X X X X X X X X X X X
TN3270 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X X X
X.25 PAD X X X X X X X X X X X X X X X X X X X X
Xremote -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- X X X X X

1 IP/IPX/IBM/APPN is a new feature set in Cisco IOS Release 11.2. This feature set has no additional options. It offers a low-end APPN solution for this set of hardware platforms.
2 The IP/IPX feature set was discontinued in Cisco IOS Release 11.2. All features in this feature set prior to Cisco IOS Release 11.2 are now available in the Desktop (IP/IPX/Appletalk/DEC)/IBM feature set, except APPN which is available in IP/IPX/IBM/APPN and Enterprise/APPN.
3 Enterprise is available with APPN in a separate feature set. Use the product numbers that specify APPN. In Cisco IOS Release 11.2, APPN includes APPN Central Registration (CRR) and APPN over DLSw+.
4 AppleTalk load balancing is available in Cisco IOS Release 11.2.
5 IRB supports IP, IPX, and AppleTalk; it is supported for transparent bridging, but not for SRB; it is supported on all media-type interfaces except X.25 and ISDN bridged interfaces; and IRB and concurrent routing and bridging (CRB) cannot operate at the same time.
6 In Cisco IOS Release 11.2, the Novell IPX feature includes display SAP by name, IPX Access Control List violation logging, and plain-English IPX access lists.
7 See the feature category "IBM Support" for information about source-route bridging (SRB) in Cisco IOS Release 10.3 and later releases. In Cisco IOS Release 11.2, SRB /RSRB and translational bridging are fast switched. This enhancement is on by default, but can be disabled.
8 ISDN support includes calling line identification (ANI), X.25 over the B channel, ISDN subaddressing, and applicable WAN optimization features.
9 PPP includes support for LAN protocols supported by the feature set, address negotiation, PAP and CHAP authentication, and PPP compression. Multilink PPP is available in Cisco IOS Release 11.0(4) and later releases.
10 X.25 includes X.25 switching.
11 IPX header compression (RFC 1553) is available in the feature sets that support IPX in Cisco IOS Release 11.1(1) and later releases.
12 X.25 payload compression is supported in Cisco IOS Release 10.2 and later releases. X.25 and Frame Relay payload compression are supported in Cisco IOS Release 11.0(4) and later releases.
13 BGP4 includes soft configuration, multipath support, and prefix filtering with inbound route maps.
14 NLSP is supported with the Desktop option in Cisco IOS Release 10.3(2) and later releases.
15 Automatic modem configuration is available for all features sets in Cisco IOS Release 11.1(2) and later releases. For the Enterprise feature set, automatic modem configuration is available in Cisco IOS 11.1(1) and later releases.
16 The RMON events and alarms groups are supported on all interfaces in Cisco IOS Release 11.1 and later releases. Separate enhanced RMON feature sets are also available with Cisco IOS Release 11.1. In Cisco IOS Release 11.2, RMON full is available with the plus feature sets.
17 MAC security for hubs is applicable to the following Cisco 2500 series Ethernet hub models: Cisco 2505, Cisco 2507, Cisco 2516, and Cisco 2518.
18 For more details, see the description of the new data encryption options in the section "Software Options" earlier in this chapter,
19 With Cisco IOS Release 11.2, TACACS+ Single Connection and TACACS+ SENDAUTH enhancements are supported.
20 QLLC and Bisync are available in IP/IBM in Cisco IOS Release 11.0(3) and later releases, and in IP/IPX/IBM and Desktop/IBM base in Cisco IOS Release 11.0(2) and later releases.
21 Cisco IOS Release 11.2 introduces several DLSw+ enhancements available in the Plus, Plus-40, and Plus-56 feature sets. See the section "IBM Support" in the chapter "Cisco IOS Software" for more details.
22 In Cisco IOS Release 10.2, RSRB was supported in all feature sets. In Cisco IOS Release 10.3 and later releases, SRB/RSRB is supported in all feature sets.
23 Supported on access severs (with limited support on router auxiliary ports).
24 ATCP and DHCP proxy client is supported in Cisco IOS Release 10.3(3) and later releases.
25 NASI is supported in Cisco IOS Release 11.1(2) and later releases.
26 Use of LAT requires terminal license (FR-L8-10.X= for an 8-user license or FR-L16-10.X= for a 16-user license).

The Remote Monitoring (RMON) MIB (RFC 1757) allows you to monitor all nodes and their interaction on a LAN segment. Standard Cisco IOS Release 11.1 feature sets provide support for the RMON alarm and event groups only. If you prefer more network management support, you can order an enhanced RMON feature set that includes full support for the following nine groups: statistics, history, alarms, hosts, hostTopN, matrix, filter, capture, and events. Table 144 describes the contents of the enhanced IP/RMON, IP/IPX/RMON, and Enterprise/RMON feature sets.

In Cisco IOS Release 11.2, the feature RMON full is available in the Plus feature sets.

Table 144 : Cisco IOS Release 11.1---RMON Platform-Specific Feature Sets

RMON Platform-Specific Feature Sets1
Features
IP/RMON Routing IP/IPX/RMON Routing Enterprise/
RMON
Cisco IOS Release 11.1 11.1 11.1
Platforms Supported
Cisco 2500 series routers: Ethernet models 2501, 2503, 2505, 2507, 2509, 2511, 2513, 2514, 2516, 2518, 2520, 2522, 2524 X X X
LAN Support
Apollo Domain -- -- X
AppleTalk 1 and 2 -- -- X
Banyan VINES -- -- X
Concurrent routing and bridging X X X
DECnet IV -- -- X
DECnet V -- -- X
GRE X X X
IP X X X
LAN extension host X X X
Multiring X X X
Novell IPX -- X X
OSI -- -- X
Transparent and translational bridging2 X X X
XNS -- -- X
WAN Services
Frame Relay X X X
HDLC X X X
IPXWAN 2.0 -- X X
ISDN3 X X X
PPP4 X X X
SMDS X X X
Switched 56 X X X
X.255 X X X
WAN Optimization
Bandwidth-on-demand X X X
Custom and priority queuing X X X
Dial backup X X X
Dial-on-demand X X X
Header6, link and payload compression7 X X X
Snapshot routing X X X
Weighted fair queuing X X X
IP Routing
BGP X X X
EGP X X X
Enhanced IGRP X X X
ES-IS -- -- X
IGRP X X X
IS-IS -- -- X
NHRP X X X
On Demand Routing (ODR) -- -- --
OSPF X X X
PIM X X X
Policy-based routing X X X
RIP X X X
RIP Version 2 X X X
Other Routing
AURP -- -- X
IPX RIP -- X X
NLSP -- X X
RTMP -- -- X
SMRP -- -- X
SRTP -- -- X
Management
AutoInstall X X X
Automatic modem configuration X X X
RMON nine-group Ethernet8 X X X
SNMP X X X
Telnet X X X
Security
Access lists X X X
Access security X X X
Extended access lists X X X
Kerberized login -- -- X
Lock and key X X X
MAC security for hubs9 X X X
MD5 routing authentication X X X
RADIUS X X X
TACACS+ X X X
IBM Support (Optional)10
BAN for SNA Frame Relay support X X X
Bisync X X X
Caching and filtering X X X
DLSw+ X X X
Downstream PU concentration (DSPU) -- -- X
Frame Relay SNA support (RFC 1490) X X X
NetView Native Service Point X X X
QLLC X X X
SDLC integration X X X
SDLC transport (STUN) X X X
SDLC-to-LAN conversion (SDLLC) X X X
SNA and NetBIOS WAN optimization
via local acknowledgment 		X X X
SRB/RSRB X X X
SRT X X X
TG/COS -- -- X
Protocol Translation
LAT -- -- X
PPP -- -- X
Rlogin -- -- X
Telnet -- -- X
TN3270 -- -- X
X.25 -- -- X
Remote Node11
Asynchronous master interfaces X X X
ATCP -- -- X
CPPP X X X
CSLIP X X X
DHCP X X X
IP pooling X X X
IPX on virtual asynch interfaces -- X X
IPXCP6 -- X X
MacIP -- -- X
NASI12 -- X X
NetBEUI over PPP X X X
PPP X X X
SLIP X X X
Terminal Services11
LAT13 -- -- X
Rlogin X X X
Telnet X X X
TN3270 -- -- X
X.25 PAD X X X
Xremote -- -- X

1 In Cisco IOS Release 11.2, RMON is available in the plus feature sets. It is listed as "RMON full" in the appropriate hardware platform tables. RMON is only available as a separate platform-specific feature set in Cisco IOS Release 11.1.
2 See the category "IBM Support" for information about source-route bridging (SRB).
3 ISDN support includes calling line identification (ANI), X.25 over the B channel, ISDN subaddressing, and applicable WAN optimization features.
4 PPP includes support for LAN protocols supported by the feature set, address negotiation, PAP and CHAP authentication, PPP compression, and Multilink PPP.
5 X.25 Includes X.25 switching.
6 IPX header compression (RFC 1553) is available in the feature sets that support IPX with Cisco IOS Release 11.1(1) and later releases.
7 X.25 and Frame Relay payload compression.
8 The RMON events and alarms groups are supported for all interfaces; however, the full none groups are supported for Ethernet interfaces only. For security reasons, packet capture only captures packet headers, not data.
9 MAC security for hubs Applies to the following Cisco 2500 series Ethernet hubs: 2505, 2507, 2516, and 2518.
10 IBM Support is available as a separate Cisco IOS feature set with the IBM base option: IP/IBM base, IP/IPX//IBM base.
11 Remote node and terminal services are supported on access servers (with limited support on router auxiliary ports).
12 NASI is available on Cisco IOS Release 11.1(2) and later releases.
13 Use of LAT requires terminal license (FS-L8-10.X= for an 8-user license or FS-L16-10.X= for a 16-user license).

Table 145 lists the software feature set product numbers and minimum memory requirements for Cisco IOS Release 11.2. Table 146 lists the software feature set product numbers and minimum memory requirements for Cisco IOS Releases 11.1, 11.0, 10.3, and 10.2.

Note All models include a minimum of 4 MB of Flash memory; however, depending on the Cisco IOS release feature set that you order with the system, it might require more memory. Refer to Table 145 and Table 146 for the minimum Flash memory required for each feature set.

The minimum memory requirements listed were chosen for typical branch and remote office applications. If your network is very large, using complex routing protocols, or using RMON, you may need more memory. Configuration analysis and testing are encouraged.

Table 145 : Cisco IOS Product Numbers and Minimum Memory Requirements for Cisco IOS Releases 11.2---Cisco 2500 Series

Minimum Memory Requirements
Cisco IOS Release 11.2
Description Product Number1 Flash Total DRAM2
Models
2501--2516
and 2520--2525 		Total DRAM2 Models
2517--2519
IP SF25C-11.2.1 SW25C-11.2.1= 4 MB 2 MB3 2 MB
IP Plus SF25CP-11.2.1 SW25CP-11.2.1= 8 MB 4 MB 6 MB
IP Plus 40 SF25CW-11.2.1
SW25CW-11.2.1= 		8 MB 4 MB 6 MB
IP Plus 56 SF25CY-11.2.1
SW25CY-11.2.1 		8 MB 4 MB 6 MB
Desktop (IP/IPX/Appletalk/DEC) SF25B-11.2.1 SW25B-11.2.1= 8 MB 4 MB 6 MB
Desktop (IP/IPX/Appletalk/DEC) Plus SF25BP-11.2.1
SW25BP-11.2.1= 		8 MB 4 MB 6 MB
Desktop (IP/IPX/Appletalk/DEC) Plus 40 SF25BW-11.2.1
SW25BW-11.2.1= 		8 MB 4 MB 6 MB
Desktop (IP/IPX/Appletalk/DEC) Plus 56 SF25BY-11.2.1
SW25BY-11.2.1= 		8 MB 4 MB 6 MB
Enterprise SF25A-11.2.1 SW25A-11.2.1= 8 MB 6 MB 6 MB
Enterprise Plus SF25AP-11.2.1 SW25AP-11.2.1= 8 MB 6 MB 6 MB
Enterprise Plus 40 SF25AW-11.2.1 SW25AW-11.2.1= 8 MB 6 MB 6 MB
Enterprise Plus 56 SF25AY-11.2.1 SW25AY-11.2.1= 8 MB 6 MB 6 MB
Enterprise/APPN Plus SF25ANP-11.2.1
SW25ANP-11.2.1= 		16 MB 8 MB 6 MB
Enterprise/APPN Plus 40 SF25ANW-11.2.1
SW25ANW-11.2.1= 		16 MB 8 MB 6 MB
Enterprise/APPN Plus 56 SF25ANY-11.2.1
SW25ANY-11.2.1= 		16 MB 8 MB 6 MB
ISDN SF25I-11.2.1
SW25I-11.2.1= 		4 MB 2 MB --
CFRAD SF25F-11.2.1
SW25F-11.2.1= 		4 MB 2 MB3 --
LAN FRAD SF25LF-11.2.1
SW25LF-11.2.1= 		4 MB 4 MB --

1 Substitute the release number for xx.x.x in the product number (for example, SW-25C-11.2.1=).
2 The total DRAM memory is the total combined primary and shared DRAM memory. See Table149.
3 The Cisco 2522 and Cisco 2523 require 4-MB DRAM. All other models require 2-MB DRAM.

Table 146 : Cisco IOS Product Numbers and Minimum Memory Requirements for Cisco IOS Releases 11.1, 11.0,
10.3, and 10.2---Cisco 2500 Series

Minimum Memory Requirements
Cisco IOS Releases
11.1 11.0 10.3 10.2
Description Product Number1 Flash Total DRAM2
Models 2501--
2516 and 2520--
2525 		Total DRAM2
Models 2517--
2519 		Flash Total DRAM2
Models 2501--
2516 and 2520--
2525 		Total DRAM2
Models 2517--
2519 		Flash Total DRAM2
Models 2501--
2516 and 2520--
2525 		Total DRAM2
Models 2517--
2519 		Flash Total DRAM2Models 2501--
2516 and 2520--
2525 		Total DRAM2
Models 2517--
2519
IP SF25C-xx.x.x SW25C-xx.x.x= 4 MB 2 MB3 2 MB 4 MB 2 MB 2 MB 4 MB 2 MB 2 MB 4 MB 2 MB 2 MB
IP with IBM base SF25CS-xx.x.x SW25CS-xx.x.x= 8 MB 4 MB 6 MB 8 MB 4 MB 6 MB 4 MB 4 MB 4 MB 4 MB 4 MB 4 MB
IP/IPX SF25D-xx.x.x SW25D-xx.x.x= 8 MB 4 MB 6 MB 4 MB 4 MB 6 MB 4 MB 4 MB 4 MB 4 MB 4 MB 4 MB
IP/IPX with IBM base SF25DS-xx.x.x SW25DS-xx.x.x= 8 MB 4 MB 6 MB 8 MB 4 MB 6 MB 4 MB 4 MB 4 MB 4 MB 4 MB 4 MB
IP/IPX with IBM base and APPN SF25DSN-xx.x.x SW25DSN-xx.x.x= 8 MB 8 MB 6 MB 8 MB 8 MB 6 MB -- -- -- -- -- --
Desktop SF25B-xx.x.x SW25B-xx.x.x= 8 MB 4 MB 6 MB 8 MB 4 MB 6 MB 4 MB 4 MB 4 MB 4 MB 4 MB 4 MB
Desktop with IBM base SF25BS-xx.x.x SW25BS-xx.x.x= 8 MB 4 MB 6 MB 8 MB 4 MB 6 MB 8 MB 4 MB 4 MB 4 MB 4 MB 4 MB
Enterprise SF25A-xx.x.x SW25A-xx.x.x= 8 MB 6 MB 6 MB 8 MB 6 MB 6 MB 8 MB 6 MB 6 MB 8 MB 6 MB 6 MB
Enterprise with APPN SF25AN-xx.x.x SW25AN-xx.x.x= 16 MB 8 MB 6 MB 8 MB 8 MB 6 MB -- -- -- -- -- --
IP and RMON SF25CR-xx.x.x
SW25CR-xx.x.x= 		4 MB 4 MB 6 MB -- -- -- -- -- -- -- -- --
IP with IBM and RMON SF25CSR-xx.x.x
SW25CSR-xx.x.x= 		8 MB 4 MB 6 MB -- -- -- -- -- -- -- -- --
IP/IPX and RMON SF25DR-xx.x.x
SW25DR-xx.x.x= 		8 MB 4 MB 6 MB -- -- -- -- -- -- -- -- --
IP/IPX with IBM and RMON SF25DSR-xx.x.x
SW25DSR-xx.x.x= 		8 MB 4 MB 6 MB -- -- -- -- -- -- -- -- --
Enterprise and RMON SF25AR-xx.x.x
SW25AR-xx.x.x= 		8 MB 4 MB 6 MB -- -- -- -- -- -- -- -- --

1 Substitute the release number for xx.x.x in the product number (for example, SW-25C-11.2.1=).
2 The total DRAM memory is the total combined primary and shared DRAM memory. See Table149.
3 The Cisco 2522 and Cisco 2523 require 4-MB DRAM. All other models require 2-MB DRAM.


Cisco IOS Feature Set Upgrades

Cisco IOS Release 11.2 for the Cisco 2500 series allows software upgrades that cross multiple feature sets. This will require you to order multiple feature set licenses. The following is an example:

You have a Cisco 2505 router running the Cisco IOS Release 11.2 IP Routing feature set. You want to upgrade to the Cisco IOS Release 11.2 Enterprise Plus feature set. You are crossing two feature sets: one to get from IP to Enterprise, and one to get to the Plus feature set. To complete the upgrade, use the following guidelines:

Feature sets for Cisco IOS Releases 11.2 can be upgraded as described in Table 147.

Table 147 : Cisco IOS Upgrades for Cisco IOS Release 11.2---
Cisco 2500 Series

Feature Set Upgrade Product Number1, 2
Plus
with Enterprise
with Desktop(IP/IPX/AT/DEC)
with IP 		FL25-P= and
SW25AP-xx.x.x=
SW25BP-xx.x.x=
SW25CP-xx.x.x=
Plus 40
with Enterprise
with Desktop(IP/IPX/AT/DEC)
with IP 		FL25-W= and
SW25AW-xx.x.x=
SW25BW-xx.x.x=
SW25CW-xx.x.x=
Plus 56
with Enterprise
with Desktop(IP/IPX/AT/DEC)
with IP 		FL25-Y= and
SW25AY-xx.x.x=
SW25BY-xx.x.x=
SW25CY-xx.x.x=
Plus and APPN
with Enterprise
with IP/IPX/IBM 		FL25-APPN= and
SW25ANP-xx.x.x=
SW25DSN-xx.x.x=
Plus 40 and APPN with Enterprise FL25-APPN=, FL25-W=, and SW25ANW-xx.x.x=
Plus 56 and APPN with Enterprise FL25-APPN=, FL25-Y=, and SW25ANY-xx.x.x=
CFRAD to IP FL25-FC= and SW25C-xx.x.x=
CFRAD to Desktop (IP/IPX/AT/DEC) FL25-FB= and SW25B-xx.x.x=
CFRAD to Enterprise FL25-FA= and SW25A-xx.x.x=
LAN FRAD to IP FL25-LFC= and SW25C-xx.x.x=
LAN FRAD to Desktop (IP/IPX/AT/DEC) FL25-LFB= and SW25B-xx.x.x=
LAN FRAD to Enterprise FL25-LFA= and SW25A-xx.x.x=
ISDN to IP FL25-IC= and SW2525C-xx.x.x=
ISDN to Desktop (IP/IPX/AT/DEC) FL25-IB= and SW25B-xx.x.x=
ISDN to Enterprise FL25-IA= and SW25A-xx.x.x=
IP to Desktop (IP/IPX/AT/DEC) FL25-CB= and SW25B-xx.x.x=
IP to Enterprise FL25-CA= and SW25A-xx.x.x=
Desktop (IP/IPX/AT/DEC) to Enterprise FL25-BA= and SW25A-xx.x.x=
IP/IPX to Desktop (IP/IPX/AT/DEC) FL25-DB= and SW25B-xx.x.x=
IP/IPX to Enterprise FL25-DA and SW25A-xx.x.x=

1 For CiscoIOS Release 11.2, substitute the release number for xx.x.x in the product number (for example, SW25A-11.2.1=).
2 If you subscribe to SMARTnet Maintenance, you only need to order the upgrade license (FL25 number). If you do not subscribe to SMARTnet Maintenance, you also need to order the upgrade media product number. See the example on the preceeding page.

Feature sets for Cisco IOS Releases 11.1, 11.0, 10.3, and 10.2 can be upgraded as described in Table 148. To order an upgrade, you must use two product numbers; one represents the upgrade license and the other represents the software. For example, to upgrade from an IP feature set to an IP feature set with IBM base functionality, order product number FRAP-CCS= (the upgrade license) and SW25CS-xx.x.x= (the software). To upgrade to a feature set with APPN, you must first purchase the upgrade license for the desired feature set and then purchase the upgrade license and upgrade software for the APPN feature set.

Table 148 : Cisco IOS Upgrades for Cisco IOS Release 11.1, 11.0, 10.3, and 10.2---Cisco 2500 Series

Feature Set Upgrade Product Number1
IP to IP with IBM base functionality FR25-CCS= and SW25CS-xx.x.x=
IP to IP/IPX FR25-CD= and SW25D-xx.x.x=
IP to IP/IPX with IBM base functionality FR25-CDS= and SW25DS-xx.x.x=
IP to IP/IPX with IBM base functionality and APPN FR25-CDS=, FR25-APPN=, and SW25DSN-xx.x.x=
IP to Desktop FR25-CB= and SW25B-xx.x.x=
IP to Desktop with IBM base functionality FR25-CBS= and SW25BS-xx.x.x=
IP to Enterprise FR25-CA= and SW25A-xx.x.x=
IP to Enterprise and APPN FR25-CA=, FR25-APPN=, and SW25AN-xx.x.x=
IP with IBM base to IP/IPX with IBM base functionality FR25-CSDS= and SW25DS-xx.x.x=
IP with IBM base to IP/IPX with IBM base functionality and APPN FR25-CSDS=, FR25-APPN=, and SW25DSN-xx.x.x=
IP with IBM base to Desktop with IBM base functionality FR25-CSBS= and SW25BS-xx.x.x=
IP with IBM base to Enterprise FR25-CSA= and SW25A-xx.x.x=
IP with IBM base to Enterprise and APPN FR25-CSA=, FR25-APPN=, and SW25AN-xx.x.x=
IP/IPX to IP/IPX with IBM base functionality FR25-DDS= and SW25DS-xx.x.x=
IP/IPX to IP/IPX with IBM base functionality and APPN FR25-DDS=, FR25-APPN=, and SW25DSN-xx.x.x=
IP/IPX to Desktop FR25-DB= and SW25B-xx.x.x=
IP/IPX to Desktop with IBM base functionality FR25-DBS= and SW25BS-xx.x.x=
IP/IPX to Enterprise FR25-DA= and SW25A-xx.x.x=
IP/IPX to Enterprise and APPN FR25-DA=, FR25-APPN=, and SW25AN-xx.x.x=
IP/IPX with IBM base to Desktop with IBM base functionality FR25-DSBS= and SW25BS-xx.x.x=
IP/IPX with IBM base to Enterprise FR25-DSA= and SW25A-xx.x.x=
IP/IPX with IBM base to Enterprise and APPN FR25-DSA=, FR25-APPN=, and SW25AN-xx.x.x=
IP/IPX with IBM base to IP/IPX with IBM base and APPN FR25-APPN= and SW25DSN-xx.x.x=
Desktop to Desktop with IBM base functionality FR25-BBS= and SW25BS-xx.x.x=
Desktop to Enterprise FR25-BA= and SW25A-xx.x.x=
Desktop to Enterprise and APPN FR25-BA=, FR25-APPN=, and SW25AN-xx.x.x=
Desktop with IBM base to Enterprise FR25-BSA= and SW25A-xx.x.x=
Desktop with IBM base to Enterprise and APPN FR25-BSA=, FR25-APPN=, and SW25AN-xx.x.x=
IP to IP/RMON FR25-RMON= and SW25CR-x.x.x=
IP to IP/IBM/RMON FR25-CCS=, FR25-RMON=, and SW25CSR-x.x.x=
IP to IP/IPX/RMON FR25-CD=, FR25-RMON=, and SW25DR-x.x.x=
IP to IP/IPX/IBM/RMON FR25-CDS=, FR25-RMON=, and SW25DSR-x.x.x=
IP to Enterprise/RMON FR25-CA=, FR25-RMON=, and SW25AR-x.x.x=
IP/RMON to IP/IBM/RMON FR25-CCS= and SW25CSR-x.x.x=
IP/RMON to IP/IPX/RMON FR25-CD= and SW25DR-x.x.x=
IP/RMON to IP/IPX/IBM/RMON FR25-CDS= and SW25DSR-x.x.x=
IP/RMON to Enterprise/RMON FR25-CA= and SW25AR-x.x.x=
IP/IBM to IP/IBM/RMON FR25-RMON= and SW25CSR-x.x.x=
IP/IBM to IP/IPX/IBM/RMON FR25-CSDS=, FR25-RMON=, and SW25DSR-x.x.x=
IP/IBM to Enterprise/RMON FR25-CSA=, FR25-RMON=, and SW25AR-x.x.x=
IP/IBM/RMON to IP/IPX/IBM/RMON FR25-CSDS= and SW25DSR-x.x.x=
IP/IBM/RMON to Enterprise/RMON FR25-CSA= and SW25AR-x.x.x=
IP/IPX to IP/IPX/RMON FR25-RMON= and SW25DR-x.x.x=
IP/IPX to IP/IPX/IBM/RMON FR25-DDS=, FR25-RMON=, and SW25DSR-x.x.x=
IP/IPX to Enterprise/RMON FR25-CSA=, FR25-RMON=, and SW25AR-x.x.x=
IP/IPX/RMON to IP/IPX/IBM/RMON FR25-DDS= and SW25DSR-x.x.x=
IP/IPX/RMON to Enterprise/RMON FR25-DA= and SW25AR-x.x.x=
IP/IPX/IBM to IP/IPX/IBM/RMON FR25-RMON= and SW25DSR-x.x.x=
IP/IPX/IBM to Enterprise/RMON FR25-DSA=, FR25-RMON=, and SW25AR-x.x.x=
IP/IPX/IBM/RMON to Enterprise/RMON FR25-DSA= and SW25AR-x.x.x=
Desktop to Enterprise/RMON FR25-BA=, FR25-RMON=, and SW25AR-x.x.x=
Desktop/IBM to Enterprise/RMON FR25-BSA=, FR25-RMON=, and SW25AR-x.x.x=
Enterprise to Enterprise/RMON FR25-RMON= and SW25AR-x.x.x=

1 For CiscoIOS Release 11.1, 11.0, 10.3, and 10.2, substitute the release number for xx.x.x in the product number (for example, SW25D-11.1.1=).

There are two types of DRAM memory in the Cisco 2500 series routers: primary and shared (packet). Primary memory is used to store the operating configuration, routing tables, caches, queues, and packets. Shared memory is used to store incoming and outgoing packets. In Table 149, the physical configuration column lists the amount of fixed DRAM and DRAM SIMM memory supported. The system usage column lists how the system allocates the total DRAM memory installed.

Table 149 : Shared and Primary DRAM Memory---Cisco 2500 Series

Physical Configuration System Usage
Total DRAM Memory Fixed DRAM1 DRAM SIMM Shared DRAM
Memory 		Primary DRAM Memory
2 MB 2 MB -- 1 MB 1 MB
4 MB -- 4 MB 2 MB 2 MB
6 MB 2 MB 4 MB 2 MB 4 MB
8 MB -- 8 MB 2 MB 6 MB
10 MB 2 MB 8 MB 2 MB 8 MB
16 MB -- 16 MB 2 MB 14 MB
18 MB 2 MB 16 MB 2 MB 16 MB

1 Fixed DRAM is soldered on the system card. Depending on the Cisco IOS feature originally ordered, the system may or may not include fixed DRAM.


Hardware Options

fig_3.gif

The hardware options for Cisco 2500 series routers include additional rack-mount kits, memory, and cables. In Table 150 and Table 151, if a product number ends with an equal sign (=), you can order the item as a spare only. If a product number does not end with an equal sign, you can order the item as a spare or as a configurable part of a system order.

All Cisco 2500 models include a minimum of 4 MB of Flash memory; however, depending on the Cisco IOS software release shipped with the system, it might require more memory. Additional Flash memory can be purchased to allow for dual banking or potential future code growth.

The Cisco 2500 series routers also come with a 19-inch rack-mount kit and a console cable kit (which includes a RJ-45-to-RJ-45 roll-over console cable, an RJ-45-to-DB-25 male DCE adapter, an RJ-45-to-DB-25 female DTE adapter, and a DB-9 adapter).

Note For more information, including cable illustrations, refer to the chapter "Cables and Transceivers." The chapter "Power Cords" provides international power cord product numbers.

Table 150 : Cisco 2500 Series Hardware Options

Option Product Number
19" rack-mount kit1 ACS-2500RM-19=
24" rack-mount kit A25-2500RM-24=
Boot ROM upgrade BOOT-2500=
4-MB DRAM MEM-1X4D
4-MB DRAM (spare) MEM-1X4D=
8-MB DRAM MEM-1X8D
8-MB DRAM (spare) MEM-1X8D=
16-MB DRAM MEM-1X16D
16-MB DRAM (spare) MEM-1X16D=
4-MB Flash SIMM MEM-1X4F
4-MB Flash SIMM (spare) MEM-1X4F=
8-MB Flash SIMM MEM-1X8F
8-MB Flash SIMM (spare) MEM-1X8F=
4- to 8-MB Flash SIMM upgrade2 MEM-1X8F-U
4- to 8-MB Flash SIMM upgrade3 MEM-1X8F-DFB-U
8-MB dual-bank Flash SIMM4 (spare) MEM-1X8F-DFB=
16-MB dual-bank Flash SIMM5 MEM-1X16F-DFB
16-MB dual-bank Flash SIMM5 (spare) MEM-1X16F-DFB=
2-wire switched 56-kbps CSU/DSU module (for Cisco 2524 and Cisco 2525 routers only) SM25-56K2
4-wire 56/64-kbps DSU/CSU module (for Cisco 2524 and Cisco 2525 routers only) SM25-56K4
Fractional T1/T1 DSU/CSU module (for Cisco 2524 and Cisco 2525 routers only) SM25-T1
Five-in-one synchronous serial module (for Cisco 2524 and Cisco 2525 routers only) SM25-5IN1
ISDN BRI module (for Cisco 2524 and Cisco 2525 routers only) SM25-BRI-S/T
ISDN with integrated network termination 1 (NT1) device module (for Cisco 2524 and Cisco 2525 routers only) SM25-BRI-U
Blank slot cover (for Cisco 2524 and Cisco 2525 routers only) SM25-BLANK

1 The 19-inch rack-mount kit can only be ordered as a spare; a 19-inch rack-mount kit is included with all Cisco2500 seriesrouters. An optional 24-inch rack-mount kit can be ordered from Cisco Systems.
2 Applies to Cisco IOS Release 11.x feature sets that require more than 4-MB Flash memory. Not available as a spare. Supported on the Cisco 2517, 2518, 2519, and AccessPro PC cards.
3 Applies to Cisco IOS Release 11.x feature sets that require more than 4-MB Flash memory. Not available as a spare. Supported on the Cisco 2517, 2518, 2519, AccessPro PC cards, and AS5100 access servers.
4 Dual-bank Flash memory is required for Cisco 2517, 2518, 2519, AccessPro PC cards, and AS5100 access servers because these models contain only one slot for Flash memory. It can operate as either two banks of 4 MB for dual-Flash bank operation or as 8 MB contiguous. Supported on the Cisco 2517, 2518, 2519, AccessPro PC cards, and AS5100 access servers.
5 Dual-bank Flash memory is required for Cisco 2517, 2518, 2519, AccessPro PC cards, and AS5100 access servers because these models contain only one slot for Flash memory. It can operate as either two banks of 8 MB for dual-Flash bank operation or as 16 MB contiguous. Supported on the Cisco 2517, 2518, 2519, AccessPro PC cards, and AS5100 access servers.

Table 151 : Cisco 2500 Series Cables

Cables Product Number
EIA/TIA-232 male DTE interface, 10' (3 m) CAB-232MT
EIA/TIA-232 female DCE interface, 10' (3 m) CAB-232FC
EIA/TIA-449 male DTE interface, 10' (3 m) CAB-449MT
EIA/TIA-449 female DCE interface, 10' (3 m) CAB-449FC
EIA-530 male DTE interface, 10' (3 m) CAB-530MT
V.35 male DTE interface, 10' (3 m) CAB-V35MT
V.35 female DCE interface, 10' (3 m) CAB-V35FC
X.21 male DTE interface, 10' (3 m) CAB-X21MT
X.21 female DCE interface, 10' (3 m) CAB-X21FC
Ethernet AUI adapter cable CAB-3CE18=
Auxiliary/console cable kit1 ACS-2500ASYN
RJ-45-to-DB-25 management card console cable2 CAB-MGMT-RH
Shielded power cable, United States2 CABS-AC
Shielded power cable, Australia2 CABS-ACA
Shielded power cable, Italy2 CABS-ACI
Shielded power cable, Europe2 CABS-ACE
Shielded power cable, United Kingdom2 CABS-ACU

1 The auxiliary/console cable kit includes a RJ-45-to-RJ-45 roll-over console cable, an RJ-45-to-DB-25 male DCE adapter, an RJ-45-to-DB-25 female DTE adapter, and an RJ-45-to-DB-9 adapter.
2 Applies to the Cisco2517, Cisco2518, and Cisco2519 router/hubs only.


Single LAN Routers

Models 2501, 2502, 2503, 2504, 2520, 2521, 2522, and 2523 contain the common Cisco 2500 series features listed in Table 141. In addition, these models support the network interfaces listed in Table 152.

Note This section discusses standard models. The mission-specific models are described in the section "Mission-Specific Routers," later in this chapter.

Table 152 : Single LAN Router Network Interfaces

Model Ethernet Token Ring Low-Speed Serial1 Serial2 ISDN BRI
2501 1 0 0 2 0
2502 0 1 0 2 0
2503 1 0 0 2 1
2504 0 1 0 2 1
2520 1 0 2 2 1
2521 0 1 2 2 1
2522 1 0 8 2 1
2523 0 1 8 2 1

1 Synchronous and asynchronous.
2 Synchronous.

Figure 54 : Cisco 2501 Rear Panel

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Figure 55 : Cisco 2502 Rear Panel

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Figure 56 : Cisco 2503 Rear Panel

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Figure 57 : Cisco 2504 Rear Panel

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Figure 58 : Cisco 2520 Rear Panel

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Figure 59 : Cisco 2521 Rear Panel

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Figure 60 : Cisco 2522 Rear Panel

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Figure 61 : Cisco 2523 Rear Panel

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Mission-Specific Routers

Mission-specific routers are entry-level routers that are based on standard Cisco 2500 hardware. However, mission-specific routers contain less memory than standard models and run reduced software images designed for CFRAD, LAN FRAD, and ISDN applications. These reduced software images disable unused ports. Mission-specific routers can be upgraded to full standard model functionally by purchasing additional software and memory.

The network interfaces for the Cisco 2500 series mission-specific routers are listed in Table 153.

Table 153 : Mission-Specific Router Network Interfaces

Model Ethernet Token Ring Serial Low-Speed Serial ISDN BRI
2501CF Software disabled 0 2 0 0
2501LF 1 0 2 0 0
2502CF 0 Software disabled 2 0 0
2502LF 0 1 2 0 0
2503I 1 0 Software disabled 0 1
2504I 0 1 Software disabled 0 1
2520CF Software disabled 0 2 2 Software disabled
2520LF 1 0 2 2 Software disabled
2521CF 0 Software disabled 2 2 Software disabled
2521LF 0 1 2 2 Software disabled
2522CF Software disabled 0 2 8 Software disabled
2522LF 1 0 2 8 Software disabled
2523CF 0 Software disabled 2 8 Software disabled
2523LF 0 1 2 8 Software disabled

The CFRAD, LAN FRAD, and ISDN platform-specific protocols are listed in Table 154.

Table 154 : CFRAD, LAN FRAD, and ISDN Platform-Specific Feature Sets

Cisco 2500 Series Platform-Specific Feature Sets
Features ISDN CFRAD1 LAN FRAD2
Cisco IOS Releases 11.2 11.1 11.0 10.3 10.2 11.2 11.1 11.0 10.3 10.2 11.2 11.1 11.0 10.3 10.2
Platforms Supported
Cisco 2500 series routers: models 2501, 2502, 2505, 2507, 2509-2515, 2524 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Cisco 2503I, Cisco 2504I X X X X X -- -- -- -- -- -- -- -- -- --
Cisco 2501CF, Cisco 2502CF,
Cisco 2520CF-2523CF1 		-- -- -- -- -- X X X X X -- -- -- -- --
Cisco 2501LF, Cisco 2502LF,
Cisco 2520LF-2523LF 		-- -- -- -- -- -- -- -- -- -- X X X -- --
LAN Support
AppleTalk 1 and 23 X -- -- -- -- -- -- -- -- -- -- -- -- -- --
GRE X X X X X -- -- -- -- -- X X X -- --
Integrated routing and bridging (IRB)4 X -- -- -- -- X -- -- -- -- X -- -- -- --
IP X X X X X -- -- -- -- -- X X X -- --
Multiring X X X X X -- -- -- -- -- X X X -- --
Novell IPX5 X X X X X -- -- -- -- -- X X X -- --
Transparent bridging6 -- -- -- -- -- -- -- -- -- -- X X X -- --
Transparent and translational bridging6 X X X X X -- -- -- -- -- -- -- -- -- --
WAN Services
Combinet Packet Protocol (CPP) X -- -- -- -- X -- -- -- -- X -- -- -- --
Dialer profiles X -- -- -- -- X -- -- -- -- X -- -- -- --
Frame Relay -- -- -- -- -- X X X X X X X X -- --
Frame Relay traffic shaping -- -- -- -- -- X -- -- -- -- X -- -- -- --
Half bridge/half router for CPP and PPP X -- -- -- -- X -- -- -- -- X -- -- -- --
IPXWAN 2.0 -- -- -- -- -- -- -- -- -- -- X X X -- --
ISDN7 X X X X X -- -- -- -- -- -- -- -- -- --
PPP8 X X X X X X X X X X X X X -- --
WAN Optimization
Bandwidth-on-demand9 X X X X X -- -- -- -- -- -- -- -- -- --
Custom and priority queuing X X X X X X X X X X X X X -- --
Dial backup X X X X X -- -- -- -- -- -- -- -- -- --
Dial-on-demand X X X X X -- -- -- -- -- -- -- -- -- --
Header10, link and payload compression11 -- -- -- -- -- X X X X X X X X -- --
Header11 and link compression X X X X X -- -- -- -- -- -- -- -- -- --
Snapshot routing X X X X X -- -- -- -- -- -- -- -- -- --
Weighted fair queuing X X X X X X X X X X X X -- -- X
IP Routing
BGP X X X X X -- -- -- -- -- -- -- -- -- --
BGP412 X -- -- -- -- X -- -- -- -- -- -- -- -- --
EGP X X X X X -- -- -- -- -- -- -- -- -- --
Enhanced IGRP X X X X X X X X X X X X X X X
Enhanced IGRP Optimizations X -- -- -- -- X -- -- -- -- X -- -- -- --
IGRP X X X X X X X X X X X X X -- --
NHRP X X X X X -- -- -- -- -- -- -- -- -- --
On Demand Routing (ODR) X -- -- -- -- X -- -- -- -- X -- -- -- --
OSPF X X X X X X -- -- -- -- -- -- -- -- --
OSPF Not-So-Stubby-Areas (NSSA) X -- -- -- -- X -- -- -- -- -- -- -- -- --
OSPF On Demand Circuit (RFC 1793) X -- -- -- -- X -- -- -- -- -- -- -- -- --
PIM X X X X X -- -- -- -- -- -- -- -- -- --
Policy-based routing X X X X X -- -- -- -- -- -- -- -- -- --
RIP X X X X X X X X X X X X X -- --
RIP Version 2 X X -- -- -- X X -- -- -- X X -- -- --
Other Routing
AURP X X X X X -- -- -- -- -- -- -- -- -- --
IPX RIP X X X X X -- -- -- -- -- X X X -- --
NLSP -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
RTMP X X X X X -- -- -- -- -- -- -- -- -- --
Multimedia and Quality of Service
Generic traffic shaping X -- -- -- -- X -- -- -- -- X -- -- -- --
Random Early Detection (RED) X -- -- -- -- X -- -- -- -- X -- -- -- --
Resource Reservation Protocol (RSVP) X -- -- -- -- X -- -- -- -- X -- -- -- --
Management
AutoInstall -- -- -- -- -- X X X X X X X X -- --
HTTP Server X -- -- -- -- X -- -- -- -- X -- -- -- --
RMON events and alarms13 X X -- -- -- -- -- -- -- -- -- -- -- -- --
SNMP X X X X X X X X X X X X X -- --
Telnet X X X X X X X X X X X X X -- --
Security
Access lists X X X X X X X X X X X X X -- --
Access security X X X X X X X X X X X X X -- --
Extended access lists X X X X X X X X X X X X X -- --
Lock and Key X X -- -- -- X X -- -- -- X X -- -- --
MD5 routing authentication X X X -- -- X X -- -- -- X X X -- --
RADIUS -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
TACACS+14 X X X X X X X X X X X X X -- --
IBM Support (Optional)
BAN for SNA Frame Relay support -- -- -- -- -- X -- -- X X X -- -- -- --
Bisync15 -- -- -- -- -- X X X -- -- X X X -- --
Caching and filtering -- -- -- -- -- X X X X X X X X -- --
DLSw+16 -- -- -- -- -- X X X X X X X X -- --
Frame Relay SNA support (RFC 1490) -- -- -- -- -- X X X X X X X X -- --
Native Client Server Architecture (NCIA) -- -- -- -- -- X -- -- -- -- -- -- -- -- --
NetView Native Service Point -- -- -- -- -- X X X -- -- X X X -- --
Polled asynch (ADT, ADPLEX) -- -- -- -- -- X X X -- -- X X X -- --
QLLC15 -- -- -- -- -- X X X -- -- X X X -- --
RFC 1795 -- -- -- -- -- X X X -- -- X X X -- --
RSRB -- -- -- -- -- X X X X X -- -- -- -- --
SDLC integration -- -- -- -- -- X X X X X X X X -- --
SDLC transport (STUN) -- -- -- -- -- X X X X X X X X -- --
SDLC-to-LAN conversion (SDLLC) -- -- -- -- -- X X X X X X X X -- --
SNA and NetBIOS WAN optimization
via local acknowledgment 		-- -- -- -- -- X X X X X X X X -- --
SRB/RSRB17 -- -- -- -- -- -- -- -- -- -- X X X -- --
SRT -- -- -- -- -- -- -- -- -- -- X X X -- --

1 Cisco IOS Release 10.3 and 10.2 CFRAD software is available on the Cisco 2501CF and 2502CF models only.
2 Cisco IOS Release 11.0(5) and LAN FRAD software is available with the following models: 2501LF, 2502LF, 2520LF, 2521LF, 2522LF, and 2523LF.
3 Appletalk load balancing is available in Cisco IOS Release 11.2.
4 IRB supports IP, IPX, and AppleTalk; it is supported for transparent bridging, but not for SRB; it is supported on all media-type interfaces except X.25 and ISDN bridged interfaces; and IRB and concurrent routing and bridging (CRB) cannot operate at the same time.
5 In Cisco IOS Release 11.2, the Novell IPX feature includes display SAP by name, IPX Access Control List violation logging, and plain-English IPX access lists.
6 See the category "IBM Support" for information about source-route bridging (SRB) in Cisco IOS Release 10.3 and later releases.
7 ISDN support includes calling line identification (ANI), X.25 over the B channel, ISDN subaddressing, and applicable WAN optimization features.
8 PPP includes support for LAN protocols supported by the feature set, address negotiation, PAP and CHAP authentication, and PPP compression. Multilink PPP is available in Cisco IOS Release 11.0(4) and later releases.
9 Bandwidth-on-demand means two B channels calls to the same destination.
10 IPX header compression (RFC 1553) is available in the feature sets that support IPX.
11 X.25 and Frame Relay payload compression.
12 BGP4 includes soft configuration, multipath support, and prefix filtering with inbound route maps.
13 RMON events and alarms is supported on all interfaces.
14 With Cisco IOS Release 11.2, TACACS+ Single Connection and TACACS+ SENDAUTH enhancements are supported.
15 QLLC and Bisync are available in IP/IBM in Cisco IOS Release 11.0(3) and later releases, and in IP/IPX/IBM and Desktop/IBM base in Cisco IOS Release 11.0(2) and later releases.
16 Cisco IOS Release 11.2 introduces several DLSw+ enhancements available in the Plus, Plus 40, and Plus 56 feature sets. See the section "IBM Support" in the chapter "Cisco IOS Software" for more details.
17 With Cisco IOS Release 11.2, SRB/RSRB is fast switched. This enhancement is on by default, but can be disabled.

Mission-specific routers can be upgraded to run Cisco IOS feature sets by using the product numbers listed in Table 147, for Cisco IOS Release 11.2, and Table 155 for Cisco IOS Release 11.1, 11.0, 10.3, and 10.2. Note that you must order two product numbers: an upgrade path plus the release-specific software for Cisco IOS Release 11.1, 11.0, 10.3, and 10.2. For example, to upgrade a Cisco 2501CF to the IP routing feature set, order FR25-FC= to upgrade from mission-specific software to the IP feature set and also order SW25C-xx.x.x= to obtain the Cisco IOS IP routing software.

Table 155 : Mission-Specific Router Software Upgrades---Cisco IOS Release 11.1, 11.0, 10.3, and 10.2

Upgrade to Feature Set CFRAD Product Number1, 2 ISDN Product Number1, 3
IP routing FR25-FC= and SW25C-xx.x.x= FR25-IC= and SW25C-xx.x.x=
IP with IBM base functionality FR25-FCS= and SW25CS-xx.x.x= FR25-ICS= and SW25CS-xx.x.x=
IP/IPX FR25-FD= and SW25D-xx.x.x= FR25-ID= and SW25D-xx.x.x=
IP/IPX with IBM base functionality FR25-FDS= and SW25DS-xx.x.x= FR25-IDS= and SW25DS-xx.x.x=
IP/IPX/IBM/APPN FR25-FDS=, FR25-APPN=, and SW25DSN-xx.x.x= FR25-IDS=, FR25-APPN=, and SW25DSN-x.x.x=
Desktop FR25-FB= and SW25B-xx.x.x= FR25-IB= and SW25B-xx.x.x=
Desktop with IBM base functionality FR25-FBS= and SW25BS-xx.x.x= FR25-IBS= and SW25BS-xx.x.x=
Enterprise FR25-FA= and SW25A-xx.x.x= FR25-IA= and SW25A-xx.x.x=
IP/RMON FR25-FC=, FR25-RMON=, and SW25CR-x.x.x= FR25-IC=, FR25-RMON=, and SW25CR-x.x.x=
IP/IBM/RMON FR25-FCS=, FR25-RMON=, and SW25CSR-x.x.x= FR25-ICS=, FR25-RMON=, and SW25CSR-x.x.x=
IP/IPX/RMON FR25-FD=, FR25-RMON, and SW25DR-x.x.x= FR25-ID=, FR25-RMON=, and SW25DR-x.x.x=
IP/IPX/IBM/RMON FR-FDS=, FR25-RMON=, and SW25DSR-x.x.x= FR25-IDS=, FR25-RMON=, and SW25DSR-x.x.x=
Enterprise/RMON FR25-FA=, FR25-RMON=, and SW25DSR-x.x.x= FR25-IA=, FR25-RMON=, and SW25AR-x.x.x=

1 For Cisco IOS Release 11.1, 11.0, 10.3, and 10.2 upgrades, substitute the release number for xx.x.x in the product number (for example, SW25C-11.2.1=).
2 Applies to the Cisco 2501CF and 2502CF only.
3 Applies to the Cisco 2503I and 2504I only.


Router/Hub Combinations

Models 2505, 2507, and 2516 to 2519 support integrated hub functionality as well as all the common features listed in Table 141. In addition, these models support the interfaces listed in Table 156.

Table 156 : Router/Hub Interface Options

Model Ethernet 10BaseT Ethernet AUI Token Ring Token Ring
Ring In/
Ring Out 		Serial Hub Ports BRI
2505 1 0 0 0 2 8 0
2507 1 0 0 0 2 16 0
2516 1 0 0 0 2 14 1
2517 0 0 1 0 2 11 1
2518 1 1 0 0 2 23 1
2519 0 0 1 1 2 23 1

Figure 62 : Cisco 2505 Rear Panel

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Figure 63 : Cisco 2507 Rear Panel

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Figure 64 : Cisco 2516 Rear Panel

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Figure 65 : Cisco 2517 Rear Panel

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Figure 66 : Cisco 2518 Rear Panel

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Figure 67 : Cisco 2519 Rear Panel

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Access Servers

Models 2509, 2510, 2511, and 2512 are designed to function as access servers for remote node and asynchronous/synchronous routing. For complete information, refer to the chapter "Access Servers" later in the catalog.


Dual LAN Routers

Models 2513, 2514, and 2515 provide higher density LAN support and include all the common features listed in Table 141. In addition, these models support the interfaces listed in Table 157.

Table 157 : Dual LAN Router Interface Options

Model Ethernet Token Ring Serial ISDN BRI
2513 1 1 2 0
2514 2 0 2 0
2515 0 2 2 0

Figure 68 : Cisco 2513 Rear Panel

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Figure 69 : Cisco 2514 Rear Panel

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Figure 70 : Cisco 2515 Rear Panel

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Modular Routers

Models 2524 and 2525 provide LAN and WAN access in a low-cost modular router platform that can grow with your internetworking needs. The Cisco 2524 offers an Ethernet (AUI or 10BaseT) LAN connection, and the Cisco 2525 offers a Token Ring (STP or UTP) LAN connection. Both routers can accommodate up to three WAN modules---two synchronous serial and one ISDN.

The choice of synchronous serial WAN modules is as follows:

  • 2-wire switched 56-kbps DSU/CSU

  • 4-wire 56/64-kbps DSU/CSU

  • Fractional T1/T1 DSU/CSU

  • Five-in-one synchronous serial

Note The five-in-one synchronous serial WAN module gets its name from the five types of signaling it supports, which include the following: EIA/TIA-232, EIA/TIA-449, V.35, X.21, and EIA-530. You can order from Cisco Systems a DB-60 shielded serial transition cable. The router end of the
cable has a DB-60 connector; the other end of the cable has the appropriate connector for the standard interface you specify.

The choice of ISDN WAN modules is as follows:

  • ISDN BRI

  • ISDN with integrated NT1 device

The ISDN WAN modules are keyed so that you cannot insert them into the synchronous serial WAN slots. A blank slot cover is installed over unused slots.

Figure 71 shows the rear panel of the Cisco 2524 router, and Figure 72 shows the rear panel of the Cisco 2525 router.

Figure 73 through Figure 78 show the WAN modules. Figure 79 shows the blank slot cover.

Figure 71 : Cisco 2524 Rear Panel

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Figure 72 : Cisco 2525 Rear Panel

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Figure 73 : 2-Wire Switched 56-kbps DSU/CSU WAN Module

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Figure 74 : 4-Wire 56/64-kbps DSU/CSU WAN Module

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Figure 75 : Fractional T1/T1 DSU/CSU WAN Module

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Figure 76 : ISDN BRI WAN Module

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Figure 77 : ISDN BRI with Integrated NT1 WAN Module

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Figure 78 : Five-in-One Synchronous Serial WAN Module

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Figure 79 : Blank Slot Cover

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