
587
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
• CSCsu39152
Symptoms: IF-MIB registration fails as there are no free ifIndex available.
Conditions: Occurs after an upgrade. Seen only in HA systems.
Workaround: There is no workaround.
• CSCsu39704
Symptoms: Unable to configure pseudowire on virtual-PPP interface. Command is rejected with the
following error:
Incompatible with ip address command on Vp1 - command rejected
Conditions: Occurs when IPv4 address or IP VPN routing/forwarding (VRF) has already been
configured on the main interface.
Workaround: There is no workaround.
• CSCsu40667
Symptoms: A Cisco 7600 series router may fail to install some NetFlow entries even if NetFlow
table utilization is low.
Conditions: Occurs while flows are ingressing on ES20 module.
Workaround: There is no workaround.
Further Problem Description: The show mls netflow table-contention detail command will show
a heavy ICAM table utilization, while TCAM utilization is small.
Router#sh mls net table-contention det
Earl in Module 1
Detailed Netflow CAM (TCAM and ICAM) Utilization
================================================
TCAM Utilization : 0%
ICAM Utilization : 98%
Netflow TCAM count : 152
Netflow ICAM count : 126
Netflow Creation Failures : 388663
Netflow CAM aliases : 0
• CSCsu42078
Symptoms: A router may crash due to bus error caused by an illegal access to a low memory address.
Conditions: This happens when a service-policy is applied to an interface, and then service-policy
is removed under certain conditions.
One such condition is that “ip cef distributed” was configured on the router and the multi-link
member flap triggered the service policy removal.
The problem is that, after the policy was removed, the packet path vector was not reset correctly and
still trying to access the already-removed policy internally. When traffic flows, it will cause crash.
Workaround: For the above example, remove “ip cef distributed” from the configuration.
• CSCsu42315
Symptoms: When the L3VPN prefix uses a tunnel with fast reroute (FRR) protection, there is traffic
loss during reoptimization.
Conditions: Not all prefix in the VRF will observe this issue. This is seen only when there are more
than 250,000 prefixes.
Workaround: There is no workaround.
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