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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
Conditions: Occurs when explicit-null and URPF are configured.
Workaround: There is no workaround.
• CSCsl51587
Symptoms: The channelized SPA is in admin down state. When the show hw-module subslot x
brief command is entered on the LC, the LC may crash.
Conditions: Unknown at this time.
Workaround: There is no workaround.
• 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
The supplied note does not exist in CDETS
• 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 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
Conditions: This has only been observed on a Cisco 12000 router when there are 12010E-CSC and
12010E-SFC fabric card in the chassis.
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