Cisco Cisco IOS Software Release 12.4(23)
676
Caveats for Cisco IOS Release 12.4
OL-7656-15 Rev. J0
Resolved Caveats—Cisco IOS Release 12.4(5c)
Miscellaneous
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CSCds25257
Symptoms: A gatekeeper rejects new registration requests from a Cisco Unified CallManager
(CUCM) or other H.323 endpoints with Registration Rejection (RRJ) reason of duplicateAlias.
Attempting to clear this stale registration fails and a “No such local endpoint is registered, clear
failed.” error message is generated.
(CUCM) or other H.323 endpoints with Registration Rejection (RRJ) reason of duplicateAlias.
Attempting to clear this stale registration fails and a “No such local endpoint is registered, clear
failed.” error message is generated.
Conditions: This symptom is observed in the following topology:
CUCM H.225 trunks register to a gatekeeper (GK) cluster. Gatekeeper 1 (GK1) and gatekeeper 2
(GK2) are members of the GK cluster. The CUCM registers first to GK1, then fails over to GK2.
This registration at GK2 sends an alternate registration to GK1. However, because of network issues,
the unregistered indication does not reach GK1.
(GK2) are members of the GK cluster. The CUCM registers first to GK1, then fails over to GK2.
This registration at GK2 sends an alternate registration to GK1. However, because of network issues,
the unregistered indication does not reach GK1.
When the H.225 trunk attempts to register with GK1, it is rejected because the alternate registration
is still present, and there is no way to clear it.
is still present, and there is no way to clear it.
10.9.20.3 34273 10.9.20.3 32853 SJC-LMPVA-GK-1 H323-GW A
ENDPOINT-ID: 450FC24400000000 VERSION: 5 AGE: 1618993 secs
SupportsAnnexE: FALSE
g_supp_prots: 0x00000050
H323-ID: SJC-LMPVA-Trunk_4
Workaround: Reset the gatekeeper by entering the shutdown command followed by the no
shutdown command, or reboot the affected GK.
shutdown command, or reboot the affected GK.
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CSCef29090
Symptoms: The throughput for TCPClear sessions on a Cisco AS5850 may not be as expected and
there may be a slow response time.
there may be a slow response time.
Conditions: This symptom is observed on a Cisco AS5850 with TCPclear sessions.
Workaround: There is no workaround.
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CSCek24468
Symptoms: Dangling bearer channels or voice DSP channels may occur.
Conditions: This symptom is observed under heavy stress with short duration calls on a Cisco
platform such as a Cisco AS5400 or Cisco AS5850 that functions as a gateway.
platform such as a Cisco AS5400 or Cisco AS5850 that functions as a gateway.
Workaround: There are no workaround.
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CSCek34049
Symptoms: A Cisco AS5850 that is configured for RPR+ may be unable to process more than 1990
MGCP voice calls. With more than 1990 MGCP voice calls, any of the following symptoms may
occur:
MGCP voice calls. With more than 1990 MGCP voice calls, any of the following symptoms may
occur:
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Many DSP may time-out.
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Active calls may hang.
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Spurious memory accesses and tracebacks may be generated.
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Incoming calls may be dropped.
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NextPort SPE ports may be stuck in the “a” state.
Conditions: These symptoms are observed on a Cisco AS5850 that runs Cisco IOS Release 12.4(3d)
or Release 12.4(7a).
or Release 12.4(7a).