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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(33)S1
• CSCsl51615
Symptoms: Channelized shared port adapter (SPA) out of service after active RP crash.
Conditions: Occurs because of heartbeat failure
Workaround: Reload the SPAs.
• CSCsl53811
Symptoms: Some FRR database entries become active after reoptimization. Traffic on the LSP
which become FRR active is forwarded to the wrong path and continues to drop.
Conditions: This problem may happen when manual or timer reoptimization is performed during
convergence. This problem may happen when "Tunnel head end item" and "LSP midpoint item" in
FRR database have more than one entry in each item. This problem may happen when midpoint
entry in "LSP midpoint item" is the LSP using "loose" path-option on a headend router.
Workaround: There is no workaround.
Further Problem Description: FRR database state and the traffic recover by doing primary tunnel or
backup tunnel’s "shutdown" / "no shutdown" if this problem occur. If we configure longer
reoptimization timer or we perform manual reoptimization after convergence, this problem may not
occur
• CSCsl60370
Symptoms: GSR not soaking SLOS and bringing down interface immediately
Conditions: The issue occurs only when the GSR redundancy switchover happens.
Workaround: There is no workaround.
• CSCsl62276
*Some packet flows dropped in nexthop load-sharing between TAG and IP
• CSCsl63038
Symptoms: Provider edge (PE) not learning MAC addresses as expected.
Conditions: Occurs with Virtual Private LAN Services (VPLS) setup with three PEs.
Workaround: There is no workaround.
• CSCsl63885
Symptoms: Packet drops occur when doing MPLS ip2tag and tag2ip load balancing on an Engine 2
line card.
Condition: Occurs on a Cisco 12000 series router running Cisco IOS Release 12.0(32)sy2d.
Workaround: Enable LDP on the the tunnel.
• CSCsl65264
Symptoms: EF CAR value does not set properly in TCAM for MFR bundle interface.
Conditions: Occurs when MFR interface is shut and no shut.
Workaround: Remove and re-apply output service policy to the MFR interface.
• CSCsl65977
Symptoms: IOS field diagnostics is failing with various error messages about "Slave Clock" such as
displayed below:
Error disabling LC Enable register on CSC 0, SCA768_LC_ENABLE_2_S 0x7f, read_count 100 ...
Timed out waiting for TX Network Interrupt to happen ... Slot 16, Slave Clock Control Register
0x00000000
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