Cisco Cisco IOS Software Release 12.4(4)T 發佈版本通知
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Caveats for Cisco IOS Release 12.4T
OL-8003-09 Rev. Z0
Caveats for 12.4(15)T9 through 12.4(20)T
Caveats for 12.4(15)T9 through 12.4(20)T
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Resolved Caveats—Cisco IOS Release 12.4(20)T
This section describes possibly unexpected behavior by Cisco IOS Release 12.4(20)T. All the caveats
listed in this section are resolved in Cisco IOS Release 12.4(20)T. This section describes severity 1 and 2
caveats and select severity 3 caveats.
listed in this section are resolved in Cisco IOS Release 12.4(20)T. This section describes severity 1 and 2
caveats and select severity 3 caveats.
Miscellaneous
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CSCdy37485
Symptoms: Multilink PPP (MLP) fragmentation drops may occur on a Layer 2 Tunneling Protocol
(L2TP) Network Server (LNS).
(L2TP) Network Server (LNS).
Conditions: This symptom is observed when the maximum transmission unit (MTU) size that is
negotiated is any other size than 1500 and Cisco Express Forwarding (CEF) is enabled.
negotiated is any other size than 1500 and Cisco Express Forwarding (CEF) is enabled.
Workaround: Configure an MTU size of 1500 on both the client device and the LNS.
Alternate Workaround: Disable CEF on the LNS.
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CSCee21263
Symptoms:
Fragmented packets might be dropped by the router.
Conditions:
This is observed with non-initial fragments, when a reflexive ACL is configured on the router and
the return traffic supposed to be allowed by the reflexive ACL is fragmented
the return traffic supposed to be allowed by the reflexive ACL is fragmented
Workaround:
There is no workaround. However, normal ACLs are not known to exhibit this behavior.
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CSCeg05149
Symptoms: After a secondary image is loaded by Standby, "NVRAM Verification Failed" messages
show up on Standby console resulting in lost startup and private configuration.
show up on Standby console resulting in lost startup and private configuration.