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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)S11
• CSCsm41303
Symptoms: A Cisco 12000 router with SIP-601 linecards may experience high CPU in the Tag Input
process because of many packets being punted by the linecards to the PRP CPU. The packets are
MPLS TTL expired packets that require an unreachable to be sent back. These packets should be
processed on the linecard, but they are not.
Conditions: This symptom is observed only on SIP-601 10G linecards.
Workaround: There is no workaround.
• CSCsm43195
Symptoms: A configuration of L2VPN interworking between SIP-601/GE SPA to SIP- 401/CT3/FR
DLCI switching and with a QoS egress policy applied on the SIP-601 GE SPA interface, traffic may
propagate egress on the GE port.
Conditions: When the policy is not applied, traffic flows egress on the GE SPA based interface.
When the policy is applied, no traffic is seen egress on the GE interfaces.
Workaround: There is no workaround.
• CSCsm48176
Symptoms: Line cards on a Cisco 12000 series router or a Cisco 7500 router might crash.
Conditions: This symptom is observed when the no ip multicast- routing distributed command for
a VRF is issued when multicast tunnels are up. This symptom is also observed when MVRFs are
deleted.
Workaround: Stop multicast traffic before deleting VRFs or issuing the no ip multicast-routing
distributed command.
• CSCsm57369
Symptoms: On switchover, we see the overhead message appearing in config if we have not
configured.
Conditions: This symptom is observed only if there is a switchover in RPR+ or SSO mode.
Workaround: Manually change the config to restore the previous config.
• CSCsm64491
Symptoms: Connecting SPA-4XCT3/DS0 SPAs back to back and executing the hw-module subslot
x/y reload command causes the line card to crash.
Conditions: All the interfaces should be up and running. Note that this symptom occurs only because
of the issue introduced by CSCsg96660; it is not seen otherwise without the image having the fix
for CSCsg96660.
Workaround: There is no workaround.
• CSCsm66081
Symptoms: If a multilink interface has one end connected to a Cisco 12000 router with a
CHOC12/DS1-IR-SC and the other end connected to a non-Cisco- 12000 router, then the multilink
interface receiver, at the non-Cisco-12000 router side, may drop all received packets because of
packet fragment loss or out-of-order.
Conditions: This symptom may occur immediately when the first member link comes back up again
after all member links of the multilink interface have gone down.
Workaround:
1) Create a new multilink interface.
2) Move the member links from the current multilink interface to the new multilink interface.
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