Cisco Cisco IOS Software Release 12.4(4)T
1404
Caveats for Cisco IOS Release 12.4T
OL-8003-09 Rev. Z0
Resolved Caveats—Cisco IOS Release 12.4(2)T3
Workaround: 1) The port can be taken out of the busy state and back to normal idle and operational
state by doing an offhook follow by an onhook. 2) Enter the shutdown and no shutdown commands
and the FXS port will return to normal.
state by doing an offhook follow by an onhook. 2) Enter the shutdown and no shutdown commands
and the FXS port will return to normal.
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CSCsc64985
Symptoms: Whenever a voice call is completed some errant informational messages are echoed to
the console and any open telnet sessions even though no debugs are enabled. For example, for a
DSPless POTS-to-POTS hairpin call, we might see:
the console and any open telnet sessions even though no debugs are enabled. For example, for a
DSPless POTS-to-POTS hairpin call, we might see:
Nov 30 00:10:37.809 EST: Modify Nominator =
Nov 30 00:10:37.809 EST: PAK_SUPRESS
Nov 30 00:10:37.809 EST: Modify Nominator =
Nov 30 00:10:37.809 EST: NSE_PAYLOAD
Nov 30 00:10:37.809 EST: SEQ_NUM_START
Nov 30 00:10:37.809 EST: Modify Nominator =
Nov 30 00:10:37.809 EST: NSE_PAYLOAD
Nov 30 00:10:37.809 EST: SEQ_NUM_START
Conditions: This behaviour is observed on any Cisco IOS voice gateway which is running a
Cisco IOS version listed or implied by the "First Fixed-in Version" field of bug ID CSCsc12570
"mgcp does not switch codec (e.g. g711 to g729) during call".
Cisco IOS version listed or implied by the "First Fixed-in Version" field of bug ID CSCsc12570
"mgcp does not switch codec (e.g. g711 to g729) during call".
Workaround: Use a build of Cisco IOS earlier than those listed or implied by the "First Fixed-in
Version" field of bug ID CSCsc12570 "mgcp does not switch codec (e.g. g711 to g729) during call".
Version" field of bug ID CSCsc12570 "mgcp does not switch codec (e.g. g711 to g729) during call".
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CSCsc80794
Symptoms: 100% CPU utilization will be observed on Cisco 2811, Cisco 2821, and Cisco 2851
routers even with no or minimal traffic.
routers even with no or minimal traffic.
Conditions: This will happen on the Cisco 2811, Cisco 2821, and Cisco 2851 routers with the
images that have integrated the CSCsc10961 fix and have Serial, or DSL interfaces on the native
HWIC slots.
images that have integrated the CSCsc10961 fix and have Serial, or DSL interfaces on the native
HWIC slots.
Workaround: There is no workaround.
Wide-Area Networking
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CSCee85138
Symptoms: A SegV exception crash may occur on a Cisco router that is configured for voice calls.
Conditions: This symptom is observed on a Cisco 2600 series that runs Cisco IOS Release 12.3(6a)
or Release 12.3(9) but may not be platform-dependent.
or Release 12.3(9) but may not be platform-dependent.
Workaround: There is no workaround.
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CSCei11919
Symptoms: A dialed circuit that carries a PPP connection over a tunnel between an LNS and a LAC
is not dropped when the tunnel is reset.
is not dropped when the tunnel is reset.
Conditions: This symptom is observed when you enter the clear vpdn all command, when the LNS
reloads, when the IP link between the LSN and LAC is disrupted, or when any other event occurs
that causes the tunnel to be reset.
reloads, when the IP link between the LSN and LAC is disrupted, or when any other event occurs
that causes the tunnel to be reset.
Workaround: There is no workaround.