Cisco Cisco IOS Software Release 12.2(4)XL

CSCdx32547

ADSL line with alcatel fw 3.8.129 does not train

With 3.8.129 alcatel firmware for ADSL WICs, for few loop lengths with significant cross talk, the 
line is failing to train. The workaround is to configure “dsl operating-mode ansi” on the CPE. The 
new firmware 3.8.131 released by alcatel has the fix for this problem.

There are no open caveats specific to Cisco IOS Release 12.2(4) XL5 that require documentation in the 
release notes.

All the caveats listed in this section are resolved in Cisco IOS Release 12.2(4) XL5. This section 
describes only severity 1 and 2 caveats and select severity 3 caveats. 

CSCds80112

Router may reload while running DLSw+ Ethernet Redundancy Feature 

Symptoms: A Cisco router that is running Cisco IOS Release 12.1 may reload when the data-link 
switching plus (DLSw+) Ethernet Redundancy feature is used. This condition occurs only when the 
dlsw transparent map interface configuration command is configured. 

Workaround: There is no workaround.

CSCds82696

ignore-hw-local-loopback not configurable on WIC-2A/S

On WIC-2A/S, cannot configure "ignore-hw-local-loopback" when DCE cable is attached.

CSCdw57301

TPLUS: Select Error Invalid argument; inertmittent authen failure

Intermittent TACACS+ authentication failures may occur, and the following message may be 
displayed in the debug output when the debug tacacs EXEC command is issued on a 
router:TPLUS(xxxx): Select Error Invalid argument

Workaround: Reload the router.

CSCdv04922

Spurious memory access made @ dslsar_encaps  

Symptoms: Spurious memory access message might be displayed on the console with 
ADSL/GSHDSL interfaces. There are no known consequences of these messages.

Workaround: There is no work around

CSCdv51360

TCP session stuck in SYNSENT, TCB appears hung

Symptoms: A data-link switching (DLSw) peer may be stuck in the AB_PEND state and a TCP 
session may be stuck in the SYNSENT state after an IP outage occurs between two DLSw routers.