
594
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
• CSCsu82893
Symptoms: Features requiring nas-port as a username determined by AAA (such as pre-auth) will
not work on the standby device, causing standby sessions to be poisoned.
Conditions: AAA calculates the IP address of the best port, which is up and active. However, on the
standby device, no interface is visibly active, resulting in a best IP address defining the router to be
0.0.0.0.
Workaround: There is no workaround.
• CSCsu83563
Symptoms: Multicast rate-limiters stop working after a HA switchover.
Conditions: To see this issue you have to have a HA setup with multicast rate-limiters set. In order
to see this issue the rate-limiters must have been set before the standby is booted. If the rate-limiters
are set after standby is up in HOT state, the issue is not seen after switchover.
Workaround: Remove and reconfigure the rate-limiters.
• CSCsu83588
Symptoms: After a router reload, the Flex Link configuration (switchport backup interface Po#)
is lost.
Conditions: Occurs when a backup interface is a port-channel interface.
Workaround: There is no workaround.
• CSCsu87248
Symptoms: Router crashes while adding flexible NetFlow.
Conditions: Occurred on a router running Cisco IOS Release 12.2(33)SRC1.
Workaround: There is no workaround.
• CSCsu88256
Symptoms: Imposition traffic on a Ethernet Over MPLS (EoMPLS) VC is dropped.
Conditions: Occurs if xconnect is configured on a EVC with switchport on another interface.
Workaround: There is no workaround.
Further Problem Description: When this problem happens the DMAC used by the imposition line
card is that of the switchport interface instead of the router MAC address, causing the packet to be
dropped.
• CSCsu89550
Symptoms: All tagged packets on a hardware Ethernet Over MPLS (EoMPLS) VC is subjected to
CoPP when the VC is down.
Conditions: Occurs if VC is brought down by flapping core facing interface.
Workaround: Remove the control-plane policy.
Further Problem Description: It is applicable to only port-mode hardware EoMPLS.
• CSCsu90280
Symptoms: IPv6 DMVPN tunnel does not work. IPv6 NHRP registration between Hub and Spoke
fails.
Conditions: The symptoms are observed under normal operation.
Workaround: There is no workaround.
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