
647
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Workaround: Enable the same set of BGP dampening on both the VPNv4 address family as well as
all entries for IPv4 VRF address-family.
• 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
• 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.
Further Problem Description: Traffic loss during re-optimization can be due to faster tunnel cleanup
also. It is advisable to configure mpls traffic-eng reoptimize timers delay cleanup <seconds> to
fine tune the cleanup according to the topology.
• CSCsu44992
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