
752
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
• CSCsm28791
Symptoms: PFC-based EoMPLS does not have the correct disposition adjacency sometimes on the
ESM20G, SIP-600 line card.
Conditions: This symptom is due to a race condition on the control plane update.
Workaround: There is no workaround.
Further Problem Description: Make sure that the EoMPLS VC is a PFC-based EoMPLS (i.e. it is
configured on the sub-interface or the main interface). Make sure that the disposition is done on the
ESM20G and SIP-600 line card.
Using the show mpls l2transport vc vcid detail command, get the local label. Get the PFC
adjacency using the show mls cef mpls label command and the show mls cef adjacency entry addr
command. If the MTU is programmed as 65535 and dindex is 0x14, then you are hitting this
problem.
• CSCsm29120
Symptoms: PIM neighbor times out on interface that was once configured as port-channel. This
happens for both IPv4 and IPv6 multicast. This issue is consistently reproducible. If PIM times out,
multicast traffic will not flow on the interface.
Conditions: Occurs under the following scenario:
1. Configure port-channel on Ethernet interfaces.
2. Configure IPv4 and IPv6 address on the port-channel interface. PIM neighbor will be formed.
3. Remove Ethernet interface from the bundle interface and configure a IPv4 and IPv6 address. PIM
neighbor will timeout after 1 minute 45 seconds.
Workaround: Remove the interface from the port-channel, then perform a shut/no shut.
• CSCsm30569
Symptoms: Packet is not being fragmented when packet size is greater than IPSEC tunnel MTU.
Conditions: This issue is seen on routers running Cisco IOS Release 12.4T when IPSec is configured
and Cisco Express Forwarding (CEF) is enabled. When CEF is disabled this issue is not seen.
It occurs when packet size is greater than IPSec tunnel MTU. Packet is not being fragmented,
however traffic is passing successfully.
Workaround: There is no workaround.
• CSCsm31688
Symptoms: A Cisco 7304 router that has redundant NSE-100 RPs and that is running Cisco IOS
Release 12.2(31)SB10 or 12.2(31)SB11 may crash with the following message after a switchover:
tmc0 Crash Summary 0040 0300 XHXType :80000000 Global Halt 0040 0308 MACXID :00000008
External Column Memory 3 Exception 0040 0004 IHBXType :00000000 0040 0120 RPXType
:00000000
%NSE100-3-ERRORINTR: Fatal error interrupt. IOFPGA error interrupt statuses :
Asic/FPGA 0001, Line card 0000, OIR 0000, Envm. 0000
Conditions: The crash will occur only upon inducing a switchover using the redundancy
force-switchover command and under the following conditions:
1. Redundancy mode SSO. 2. Unicast RPF configured on ATM PVCs. 3. Traffic going out through
the PVCs at the time of the switchover.
The problem does not occur when PXF is disabled (at the time of the switchover) using the no ip
pxf command.
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