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974
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(30)S
Conditions: This symptom is seen on a Cisco 12000 series that runs Cisco IOS Release 12.0(23)S5
with an Engine 4 line card. This symptom may be observed by issuing the following commands in
the following order:
1. Enter the show interfaces tunnel number command. This command tells you the interface
statistics for the tunnel.
2. Enter the show mpls traffic-eng tunnels tunnel-interface command. This command tells you
the physical interface the tunnel traverses.
3. Enter the show interfaces type slot/port command. This command tells you the physical
interface statistics.
Workaround: There is no workaround.
CSCed84474
Symptoms: After an APS switch using channelized OC-12 line cards (channelized to DS-1), some
Frame Relay interfaces may fail to carry traffic.
Conditions: This symptom is observed on a Cisco 12000 series with an OC-12 line card (channelized
to DS-1) with a linear APS configuration.
Workaround: If an individual interface does not recover on its own, enter the shutdown command
followed by the no shutdown command on the affected interface.
CSCed89963
Symptoms: A Cisco 12000 series may experience a block overrun and redzone corruption with a
subsequent system reload or switchover as a result of incorrectly processing a corrupted packet.
Error messages similar to the following may be observed:
%GRP-4-CORRUPT: Corrupted packet, start_offset 96, length 65534, slot 9
%SYS-3-OVERRUN: Block overrun at 53E4389C (red zone 00000000)
Conditions: This symptom may be observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0 S and that has 1, 3, or 4 port Gigabit Ethernet line cards installed.
Workaround: There is no workaround.
CSCed95753
Symptoms: A GRE tunnel may not work on a PE router.
Conditions: This symptom is observed on a Cisco 12000 series that runs the gsr-p-mz image of
Cisco IOS Release 12.0(25)S or a later release.
Workaround: There is no workaround.
CSCee00648
Symptoms: Engine 1 GE and FE line cards on a Cisco 12000 series running Cisco IOS
Release 12.0(26)S2 may reset or fail when an HA switchover occurs.
Conditions: This symptom is observed when switching the HA mode from SSO to RPR+ or from
RPR+ to SSO and when a test crash or switchover is performed while auto negotiation is enabled on
the Engine 1 GE or FE line cards.
Workaround: Do not change the HA mode.
CSCee01371
Symptoms: A ping to a local router interface may fail if the ip source-track command is configured
for the IP address of the local router interface.
Conditions: This symptom is observed on a Cisco 12000 series Engine 0, Engine 2, and Engine 3
line card. Following is an example:
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