Cisco Cisco IOS Software Release 12.0 S 릴리즈 노트
1035
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(29)S
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS Release 12.3(5a)
but may also occur in other releases. This symptom is not observed in Release 12.1(8c).
but may also occur in other releases. This symptom is not observed in Release 12.1(8c).
Workaround: There is no workaround.
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CSCed86286
Symptoms: A router may reload due to a software-forced crash.
Conditions: This symptom is observed on a Cisco 3745 that runs Cisco IOS Release 12.2(13)T5 and
that has SSH configured. However, the symptom may occur on other platforms that run other
releases and that do not have SSH configured.
that has SSH configured. However, the symptom may occur on other platforms that run other
releases and that do not have SSH configured.
Workaround: There is no workaround.
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CSCee16483
Symptoms: An “RTT_FORMAT_FAIL” error may occur when the source and the target of a jitter
probe do not use the same Cisco IOS release.
probe do not use the same Cisco IOS release.
Conditions: This symptom is observed when the target (or responder) runs a different Cisco IOS
release than the source, and when this different Cisco IOS release on the target changes the size of
the control message of the jitter, UDP, or TCP probe, causing an incompatibility between the source
and the target.
release than the source, and when this different Cisco IOS release on the target changes the size of
the control message of the jitter, UDP, or TCP probe, causing an incompatibility between the source
and the target.
Workaround: Run the same Cisco IOS release on both the source and the target.
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CSCee35740
Symptoms: After a VIP crashes, a FIB-3-FIBDISABLE error message due to an IPC timeout may
occur for all the slots of the VIP.
occur for all the slots of the VIP.
Conditions: This symptom is observed on a Cisco 7500 series after the VIP crashes and before the
VIP recovers. The FIB-3-FIBDISABLE error message is generated for all the slots of the VIP,
causing dCEF switching to become disabled.
VIP recovers. The FIB-3-FIBDISABLE error message is generated for all the slots of the VIP,
causing dCEF switching to become disabled.
Workaround: There is no workaround. You can reenable dCEF by entering the clear cef linecard
command.
command.
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CSCee39972
Symptoms: A Cisco router may experience a memory leak in the IPC buffers:
Interface buffer pools:
IPC buffers, 4096 bytes (total 41664, permanent 624):
0 in free list (208 min, 2080 max allowed)
3339198 hits, 75195 fallbacks, 0 trims, 41040 created
4254 failures (65497 no memory)
You can also see that the Pool Manager process is holding onto more and more memory:
PID TTY Allocated Freed Holding Getbufs Retbufs Process
5 0 246913476 44522964 202605044 176561380 2654280 Pool Manage
r
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS
Release 12.0(26)S or 12.0(26)S1. The memory leak is triggered by the SNMP polling of specific
OIDs within the ciscoEnhancedMemPoolMIB MIB.
Release 12.0(26)S or 12.0(26)S1. The memory leak is triggered by the SNMP polling of specific
OIDs within the ciscoEnhancedMemPoolMIB MIB.
Workaround: Prevent the MIB from being polled by explicitly configuring an SNMP view in the
Cisco IOS configuration. To prevent this MIB from being accessed via any community strings,
create a view and apply the view to all communities configured, such as:
Cisco IOS configuration. To prevent this MIB from being accessed via any community strings,
create a view and apply the view to all communities configured, such as:
snmp-server view NOMEMPOOL iso included
snmp-server view NOMEMPOOL ciscoEnhancedMemPoolMIB excluded