Cisco Cisco IOS Software Release 12.4(23)
696
Caveats for Cisco IOS Release 12.4
OL-7656-15 Rev. J0
Resolved Caveats—Cisco IOS Release 12.4(5b)
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CSCsb30875
Symptoms: Active eRSC on a Cisco AS5850 gateway could hang after RPR+ failover, if the aaa
accounting system command is configured.
accounting system command is configured.
Conditions: The symptom has been observed under the following conditions:
4.
RPR+ failover occurred.
5.
Console connection window closed & reopened to the newly active eRSC after failover.
Workaround: There are two workarounds.
1.
The eRSC hang will not happen if no attempt is made to close and reopen the console session
with newly active eRSC after failover.
with newly active eRSC after failover.
2.
Remove the aaa accounting system command from the configuration.
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CSCsc19289
Symptoms: MC-T1 is disabled and wedged when changing the MTU size on the MC-T1 interface.
Conditions: This symptom has been observed when dLFIoLL is configured on a Cisco 7500 router
and the MTU size on MX-serial interface is changed.
and the MTU size on MX-serial interface is changed.
Workaround: Remove and replace the MC-T1 or micro reload the MC-T1.
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CSCsc70055
Symptoms: Cisco 7200 routers with traffic-carrying port adapters (PA) may crash when a Graceful
OIR is done on the traffic-carrying port adapter.
OIR is done on the traffic-carrying port adapter.
Conditions: The following conditions may result in a crash of the Cisco 7200 router:
1.
Graceful OIR must be done.
2.
The PA must be carrying traffic and the symptom occurs mostly with ingress traffic on the PA.
Workaround: Perform a manual OIR.
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CSCsd10306
Symptoms: IP SLA packets are dropped in the network. They may also cause a buffer leak on some
Cisco routers. Frequency of the problem is very low, less then 1%.
Cisco routers. Frequency of the problem is very low, less then 1%.
Conditions: This symptom is observed on IP SLA packets that have an MPLS label applied on the
source router.
source router.
Workaround: There is no workaround.
Further Problem Description: The IP SLA packets in question have a corrupted IP header.
Interfaces and Bridging
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CSCei68284
Symptoms: POS interfaces may remain in the up/down state after the router has been reloaded.
Conditions: This symptom is observed on a Cisco Catalyst 6500 series, Cisco 7500 series, and
Cisco 7600 series.
Cisco 7600 series.
Workaround: Reload the FlexWAN or VIP in which the POS port adapter is installed.