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This chapter describes the function and displays the syntax of each Frame Relay command. For more information about defaults and usage guidelines, see the corresponding chapter of the Router Products Command Reference publication.
To clear dynamically created Frame Relay maps, which are created by the use of Inverse ARP, use the clear frame-relay-inarp EXEC command.
Use the encapsulation frame-relay interface configuration command to enable Frame Relay encapsulation. The no form of this command disables Frame Relay. If the ietf keyword is not specified, this command defaults to using Cisco's encapsulation, which is a four-byte header, with two bytes for the DLCI and two bytes to identify the packet type.
| cisco | (Optional) Uses Cisco's own encapsulation, which is a four-byte header, with two bytes to identify the DLCI and two bytes to identify the packet type. This is the default. |
| ietf | (Optional) Sets the encapsulation method to comply with the IETF standard (RFCs 1294 and 1490). Use this keyword when connecting to another vendor's equipment across a Frame Relay network. |
To create a special queue for a specified interface to hold broadcast traffic that has been replicated for transmission on multiple DLCIs, use the frame-relay broadcast-queue interface configuration command.
| size | Number of packets to hold in the broadcast queue. The default is 64 packets. |
| byte-rate | Maximum number of bytes to be transmitted per second. The default is 256000 bytes per second. |
| packet-rate | Maximum number of packets to be transmitted per second. The default is 36 packets per second. |
To specify the discard eligibility (DE) group number to be used for a specified DLCI, use the frame-relay de-group interface configuration command. To disable a previously defined group number assigned to a specified DLCI, use the no form of this command with the relevant keyword and arguments.
| group-number | DE group number to apply to the specified DLCI number, in the range from 1 through 10. |
| dlci | DLCI number. |
To define a discard eligibility (DE) list specifying which packets will have the DE bit set and thus will be eligible for discarding when congestion is experienced on the Frame Relay switch, use the frame-relay de-list global configuration command. To delete a portion of a previously defined DE list, use the no form of this command.
| list-number | Number of the DE list. |
| protocol | One of the following keywords corresponding to a supported protocol or device: arp---Address Resolution Protocol.apollo---Apollo Domain.appletalk---AppleTalk.bridge---bridging device.clns---ISO Connectionless Network Service. clns_es---CLNS end systems.clns_is---CLNS intermediate systems.compressedtcp---Compressed TCP.decnet---DECnet.decnet_node---DECnet end node.decnet_router-L1---DECnet Level 1 (intra-area) router.decnet_router-L2---DECnet Level 2 (interarea) router.ip---Internet Protocol.ipx---Novell Internet Packet Exchange.vines---Banyan VINES.xns---Xerox Network Systems. |
| type | One of the following interface types: serial, null, or ethernet. |
| number | Interface number. |
| characteristic | You must supply one of the following: fragments---Classify fragmented IP packets.tcp port---TCP packets to or from a specified port.udp port---UDP packets to or from a specified port.list access-list-number---Previously defined access list number.gt bytes---Packets larger than the specified number of bytes will have the DE bit set.lt bytes---Packets smaller than the specified number of bytes will have the DE bit set. |
To assign a data link connection identifier (DLCI) to a specified Frame Relay subinterface on the router, use the frame-relay interface-dlci interface configuration command. To remove this feature, use the no form of this command.
| dlci | DLCI number to be used on the specified subinterface. |
| option | (Optional) Broadcast or encapsulation keyword. See this command in the Router Products Command Reference publication for a list of supported values. |
| protocol ip ip-address | Indicates the IP address of the serial interface of a new router onto which a router configuration file is to be autoinstalled over a Frame Relay network. Use this option only when this router will act as the BOOTP server for autoinstallation over Frame Relay. |
Use the frame-relay intf-type interface configuration command to configure a Frame Relay switch type. Use the no form of this command to disable the switch.
| dce | (Optional) Router functions as a switch connected to a router. |
| dte | (Optional) Router is connected to a Frame Relay network. This is the default. |
| nni | (Optional) Router functions as a switch connected to a switch (supports NNI connections). |
Use the frame-relay inverse-arp interface configuration command to enable the Inverse Address Resolution Protocol (Inverse ARP) on the router configured for Frame Relay. Use the no form of this command to disable this feature.
| protocol | Supported protocols: appletalk, decnet, ip, ipx, vines, and xns. |
| dlci | A DLCI number used on the interface. Acceptable numbers are integers in the range 16 to 1007. |
To configure an interface to ensure that the associated PVC will always carry outgoing TCP/IP headers in compressed form, use the frame-relay ip tcp header-compression interface configuration command. To disable compression of TCP/IP packet headers on the interface, use the no form of this command.
| passive | (Optional) Compresses the outgoing TCP/IP packet header only if an incoming packet had a compressed header. |
To enable the local management interface (LMI) mechanism for serial lines using Frame Relay encapsulation, use the frame-relay keepalive interface configuration command. To disable this capability, use the no form of this command.
| number | An integer that defines the keepalive interval. The interval must be set and must be less than the interval set on the switch; see the frame-relay lmi-t392dce command description. The default is 10 seconds. |
To set a full status polling interval, use the frame-relay lmi-n391dte interface configuration command. To restore the default interval value, assuming an LMI has been configured, use the no form of this command.
| keep-exchanges | Number of keep exchanges to be done before requesting a full status message. Acceptable value is a positive integer in the range 1 through 255. The default is 6. |
To set the DCE and Network-to-Network Interface error threshold, use the frame-relay lmi-n392dce interface configuration command. To remove the current setting, use the no form of this command.
| threshold | Error threshold value. Acceptable value is a positive integer in the range 1 through 10. The default is 2. |
To set the error threshold on a DTE or NNI interface, use the frame-relay lmi-n392dte interface configuration command. To remove the current setting, use the no form of this command.
| threshold | Error threshold value. Acceptable value is a positive integer in the range 1 through 10. The default is 2. |
To set the DCE and NNI monitored events count, use the frame-relay lmi-n393dce interface configuration command. To remove the current setting, use the no form of this command.
| events | Monitored events count value. Acceptable value is a positive integer in the range 1 through 10. The default is 2. |
To set the monitored event count on a DTE or NNI interface, use the frame-relay lmi-n393dte interface configuration command. To remove the current setting, use the no form of this command.
| events | Monitored event count value. Acceptable value is a positive integer in the range 1 through 10. The default is 2. |
To set the polling verification timer on a DCE or NNI interface, use the frame-relay lmi-t392dce interface configuration command. To remove the current setting, use the no form of this command.
| timer | Polling verification timer value. Acceptable value is a positive integer in the range 5 through 30. The default is 15 seconds. |
To select the Local Management Interface (LMI) type, use the frame-relay lmi-type interface configuration command. Use the no form of this command to remove a previously selected LMI type.
| ansi | Annex D defined by ANSI standard T1.617. |
| cisco | LMI type defined jointly by Cisco and three other companies. This is the default. |
| q933a | ITU-T Q.933 Annex A. |
To set the source DLCI for use when the LMI is not supported, use the frame-relay local-dlci interface configuration command. To remove the DLCI number, use the no form of this command.
| number | Local (source) data link connection identifier (DLCI) number for the interface. |
Use the frame-relay map interface configuration command to define the mapping between an address and the DLCI used to connect to the address. Use the no frame-relay map command to delete the map entry.
| protocol | Supported protocol, bridging, or logical link control keywords: appletalk, decnet, ip, ipx, llc2, rsrb, vines and xns. |
| protocol-address | Destination protocol address. |
| dlci | DLCI number used to connect to the specified protocol address on the interface. |
| broadcast | (Optional) Broadcasts should be forwarded to this address when multicast is not enabled (see the frame-relay multicast-dlci command for more information about multicasts). This keyword also simplifies the configuration of OSPF. |
| ietf | (Optional) IETF form of Frame Relay encapsulation. Use when the router is connected to another vendor's equipment across a Frame Relay network. |
| cisco | (Optional) Cisco encapsulation method. |
Use the frame-relay map bridge interface configuration command to specify that broadcasts should be forwarded when bridging. Use the no form of this command to delete the map entry.
| dlci | DLCI number to be used for bridging on the specified interface or subinterface. |
| broadcast | (Optional) Broadcasts should be forwarded to this address when multicast is not enabled. |
Use the frame-relay map clns interface configuration command to specify that broadcasts should be forwarded when routing using ISO CLNS. Use the no form of this command to delete the map entry.
| dlci | DLCI number to which CLNS broadcasts should be forwarded on the specified interface. |
| broadcast | (Optional) Broadcasts should be forwarded when multicast is not enabled. |
To assign header compression characteristics to an IP map that differ from the compression characteristics of the interface with which the IP map is associated, use the frame-relay map ip tcp header-compression interface configuration command. To remove the IP map, use the no form of this command. To disable TCP/IP header compression on the IP map, use the nocompress form of this command.
| ip-address | IP address. |
| dlci | DLCI number. |
| broadcast | (Optional) Forwards broadcasts to the specified IP address. |
| cisco | (Optional) Uses Cisco's proprietary encapsulation. This is the default. |
| ietf | (Optional) Uses RFC 1294 encapsulation. No TCP/IP header compression is done if IETF encapsulation is chosen for the IP map or the associated interface. |
| nocompress | (Optional) Disables TCP/IP header compression for this map. |
| active | Compresses the header of every outgoing TCP/IP packet. |
| passive | Compresses the header of an outgoing TCP/IP packet only if an incoming TCP/IP packet had a compressed header. |
Use the frame-relay multicast-dlci interface configuration command to define the DLCI to be used for multicasts. Use the no form of this command to remove the multicast group.
| number | Multicast DLCI. |
To enable Stacker payload compression on a specified point-to-point interface or subinterface, use the frame-relay payload-compress interface configuration command. To disable Stacker payload compression on a specified point-to-point interface or subinterface, use the no form of this command.
To enable multiple parallel DLCIs for different types of Frame Relay traffic, associate specified DLCIs with the same group, and define their levels, use the frame-relay priority-dlci-group subinterface configuration command.
| group-number | Specific group number. |
| high-dlci | DLCI that is to have high level. |
| medium-dlci | DLCI that is to have medium level. |
| normal-dlci | DLCI that is to have normal level. |
| low-dlci | DLCI that is to have lowest level. |
Use the frame-relay route interface configuration command to specify the static route for PVC switching. Use the no form of this command to remove a static route.
| in-dlci | DLCI on which the packet is received on the interface. |
| out-interface | Interface the router uses to transmit the packet. |
| out-dlci | DLCI the router uses to transmit the packet over the specified out-interface. |
To instruct the network server to request the short status message from the switch (see Version 2.3 of the joint Frame Relay Interface specification), use the frame-relay short-status interface configuration command. Use the no form of this command to override the default
Use the frame-relay switching global configuration command to enable PVC switching on a Frame Relay DCE or an NNI. Use the no form of this command to disable switching.
To display statistics and TCP/IP header compression information for the interface, use the show framerelay ip tcp header-compression EXEC command.
Use the show frame-relay lmi EXEC command to display statistics about the Local Management Interface (LMI).
| type | (Optional) Interface type; serial only. |
| number | (Optional) Interface number. |
To display the current map entries and information about the connections, use the show frame-relay map EXEC command.
To display statistics about PVCs for Frame Relay interfaces, use the show frame-relay pvc EXEC command.
| type | (Optional) Interface type. |
| number | (Optional) Interface number. |
| dlci | (Optional) One of the specific DLCI numbers used on the interface. Statistics for the specified PVC display when a DLCI is also specified. |
Use the show frame-relay route EXEC command to display all configured Frame Relay routes, along with their status.
Use the show frame-relay traffic EXEC command to display the router's global Frame Relay statistics since the last reload.
Use the show interfaces serial EXEC command to display information about a serial interface. When using the Frame Relay encapsulation, use the show interfaces serial command to display information about the multicast DLCI, the DLCI of the interface, and the LMI DLCI used for the Local Management Interface. The status information is taken from the LMI, when active.
| number | Interface number. |
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