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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(32)S10
• CSCsi07219
Symptoms: An Engine 3 4GE-SFP-LC= crashes by a Software Forced Crash after NetFlow-related
configuration changes are made at the interface level. The crashes can occur from 30 minutes to
several hours later.
Conditions: On a Cisco 12000 series Internet router that is running Cisco IOS Release 12.0(32)SY2
with a 4GE-SFP-LC=, NetFlow configuration changes at the interface level (Full NF or SNF) can
trigger the crashes. This bug applies to NFv9.
Workaround: There is no workaround.
• CSCsi17519
Symptoms: An E5 line card fails to boot up after multiple retries.
Conditions: This symptom is observed only on faulty hardware.
Workaround: There is no workaround.
Further Problem Description: The root cause is bad hardware that causes TCAM parity errors during
line card init. In this particular line card, when the parity error interrupt is generated during line card
init, the line card is reset. If the interrupt comes after line card init, the line card is not reset. So, in
general, if the card reports multiple TCAM parity errors, and they are not correctable, it may be
better to replace the hardware.
• CSCsi83259
Symptoms: The MPLS labels for packets that are forwarded via CEF and MPLS over a BGP route
may not match the labels in the BGP table.
Conditions: This symptom is observed on a Cisco RPM-XF-512 that runs Cisco IOS Release
12.4(6)T5 but is not platform-specific.
Workaround: Enter the clear ip route command for the prefix in the VRF.
• CSCsi93023
Symptoms: A MOD 48 line card gets stuck in the UP IOS state for more than 45 minutes after an
RPR switchover.
Conditions: The line card is MOD 48 and contains two 2-port SPA-2XCT3/DS0. This is connected
to another router with MOD 48 with two 2-port SPA- 2XCT3/DS0. This is a back-to-back
connection with all the T1 links created on both the SPA-2XCT3/DS0. Both MLPPP and MLFR
bundles are created with half of the T1 links assigned to MLPPP and the other half assigned to
MLFR with traffic flowing in the links.
Under these conditions, when an RPR switchover is performed, the MOD 48 gets stuck in the UP
IOS state and does not recover for 50 minutes. After this duration, it comes up automatically.
Workaround: There is no workaround. To recover immediately from this state, reload the card.
• CSCsi98730
Symptoms: The MPLS labels for packets that are forwarded via CEF and MPLS over a BGP route
may not match the labels in the BGP table, which may lead to traffic loss.
Conditions: This problem occurs under certain circumstances and timing conditions.
Workaround: When the symptom occurs, enter the clear ip route command for the prefix in the
VRF.
• CSCsj16016
Symptoms: With an ingress E2 GigE and an egress E5 (SIP 600/601 with a 1x10GE SPA), packets
are dropped in the egress line card with TX bad BMA buffer counts increasing.
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