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Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(31)S1
When this symptom occurs, packets that are destined for these specific IP address are dropped.
Conditions: This symptom is observed on a Cisco 12000 series when an Engine 2 line card is used
as an ingress line card for traffic that is directed to a default route.
Workaround: Enter the clear ip route 0.0.0.0 or clear ip route * command.
• CSCeh97829
Symptoms: An RP may crash continuously when you reload all the line cards in a dual-RP router
that has the redundancy mode is set to SSO.
Conditions: This symptom is observed on a Cisco 12000 series that is configured with two GRPs or
two PRPs that are configured for SSO and occurs only when a 1-port channelized OC-48 ISE line
card, a 4-port channelized OC-12 ISE line card, or 16-port channelized OC-3 ISE line card is present
in the router.
Workaround: Set the redundancy mode to RPR or RPR+.
• CSCei00027
Symptoms: On a channelized OC-48 ISE line card with APS configured, a “Signal Failure”
condition remains after the line card has been reloaded or after you enter the shutdown command
followed by the no shutdown command.
Conditions: This symptom is observed on a Cisco 12000 series and affects only a channelized OC-48
ISE line card with an APS configuration.
Workaround: There is no workaround.
• CSCei03674
Symptoms: Class-default counters (that is, the total number of packets) do not increment.
Conditions: This symptom is observed on a Cisco router when a class map matches an OAM that is
applied to a policy.
Workaround: There is no workaround.
• CSCei04350
Symptoms: MVPN PIM neighbors that are associated with both a 1-port channelized OC-48 ISE line
card and a 1-port channelized OC-12 (DS1) ISE line card bounce when you perform a
microcode-reload of a 1-port channelized OC-12 (DS1) ISE line card.
Conditions: This symptom is observed on a Cisco 12000 series.
Workaround: There is no workaround.
• CSCei04912
Symptoms: If a 4-port Engine 3 Gigabit Ethernet (GE) line card is fast reroute (FRR) headend, and
only the RX cable is pulled out, convergence time is greater than 50ms.
Conditions: This symptom occurs when the 4-port Engine 3 GE line card is FRR headend, and only
the RX cable is pulled out.
Workaround: There is no workaround.
• CSCei05312
Symptoms: An EERP-3-INVALID_LAYER error message may be generated followed by
continuous tracebacks that flood the screen, causing some tracebacks to be dropped.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(31)S and that is configured with an ATM VC and VP when a policy map of the
following type is attached and when OAM traffic is sent on the VC or VP:
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