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These release notes document Cisco Portware Version 2.0.1.7, which supports the MICA 6-port modem module carrier card for the Cisco universal access server.
This document includes the following sections:
To support the 6-port modem carrier card, the Cisco AS5300 requires Cisco IOS Release 11.2(9)XA or later, which contains the following features:
The 6-port MICA modem carrier card requires the following images:
Because Boardware and Portware are bundled in Cisco IOS software, these two modem code images are loaded automatically.
None at this time.
This section notes known issues with Portware 2.0.1.7; sources include Cisco Devtest and Development groups and customer feedback. Many of these issues are unlikely to occur, but need to be explained. Each issue is listed by its DDTs number where relevant, and is assigned a visibility weight that estimates the possibility of the issue being seen or used.
The following features are not currently supported on MICA modems:
Following are the known problems:
CSCdj44302 and CSCdj13463 - MICA receive issues--connect speed varies from 26400 bps to 31200 bps and receive connections limited to 31.2K max. The receive connect rates vary and do not reliably connect at the highest rate even over clean lines.
CSCdj45522, CSCdj60850 and CSCdj54904 - Call drops--Development, Devtest, and customers have all seen call drops. The length of the connection varies.
CSCdj45528, CSCdj61813, CSCdj60846 and CSCdj62696- Connectivity issues--Devtest and customers have seen and reported connectivity issues with some modems. The Psion Gold PCMCIA 33.6, Option International 40 PCMCIA, Multitech 28.8 PCMCIA, Apex, and other modems are having problems connecting.
CSCdj47428 - Modems go into BAD state during call setup/teardown stress testing--When running Barney through the 'slasher' test tool, some modems go into the BAD state after 12 to 48 hours of testing.
CSCdj27603 - Consecutive retransmission disconnects (0x70) during sweep pings--Under some situations, the HMM will disconnect (reason 0x70). The test case is: a client dials into a router, establishes ppp, and then from the router issue sweep pings back to calling modem.
CSCdj38981 - Auto-reliable mode is not working on Janeiro/MICA--With the Cisco AS5300 configured with LAP-M disabled and you call in with a modem configured for auto-reliable mode, the modems should connect in MNP and do not.
CSCdj50614 - ARAP connections fail more than 50% of the time--With a setup such as: MAC--USR X2 Sportster MICA; more than 50% of the ARAP connections are unsuccessful. If the connection is successful, we see giant frames and the arap session drops.
CSCdj64061 - Occasional failure of Steady-State Retrain--During EDVT testing running diagnostic code, occasionally a modem goes directly from Steady-State into Steady-State-Retrain. The outcome is either the call drops or it stays in Steady-State-Retrain even if the other modem terminates the call. This occurs during back-to-back testing while also margining the clock.
CSCdj35143 - Ats command tx level reduction showing incorrect value--The at\s command shows incorrect value.
CSCdj35500 - Initial connect speed on E1 back-2-back testing is less than 31.2K--It has been observed on both Janeiro and Barney that the initial connect rates on E1 back-to-back testing is less than 31.2K, usually 28.8K then speed shift to 31.2K.
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