Specifications

1342
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(27)S2
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(27)S.
Workaround: There is no workaround.
• CSCed77178
Symptoms: HSRP configured on the subinterfaces of an Engine 4+ GE line card may not work.
Conditions: This symptom is observed when the subinterfaces are configured with VRFs.
Workaround: There is no workaround.
• CSCed78519
Symptoms: SCR continues to filter CLP(0) cells and tag CLP(1) cells when the CLP(0) filter is
removed from the class-map command.
Conditions: This symptom is observed when there are multiple PVCs and when the class map filters
are globally removed.
Workaround: There is no workaround.
• CSCed78847
Symptoms: Cisco Express Forwarding (CEF) becomes disabled on a secondary Cisco 10000 series
Performance Routing Engine (PRE) during a switchover.
Symptoms: This symptom is observed after configuring 380 traffic engineering (TE) tunnels and
checking that CEF is enabled on both the primary and secondary PREs and that all TE tunnel
interfaces are up. Then, a forced switchover from the primary PRE to the secondary PRE is
performed. When the secondary PRE comes up and it now the new primary PRE, all tunnel
interfaces are down. The line is up but the protocol is down. Because CEF is disabled and not
running, the tunnels do not function and no routing can occur.
Workaround: Enable CEF on the primary PRE and enter the shutdown command followed by the
no shutdown command on the affected interfaces. Doing so enables the TE tunnels to come up.
• CSCed79804
Symptoms: A CRoMPLS pseudowire may fail to come up.
Conditions: This symptom is observed on a Cisco 12000 series when the disposition is changed from
an Engine 4+ line card to an Engine 2 ATM OC-12 line card.
Workaround: There is no workaround.
• CSCed81349
Symptoms: A standby RP may fail when MPLS TE tunnels are configured.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(28)S.
Workaround: There is no workaround.
• CSCed81644
Symptoms: Using Cisco IOS Release 12.0(28)S images on Cisco 12000 series routers and
Engine-6 2xOC192 line cards, the show interface accounting command shows incorrect values for
tag packets.
Conditions: This symptom is observed during a tag->tag scenario.
Workaround: Ignore the IP counters for the tag packets.
• CSCed82152
Symptoms: An Engine 4+ line card may reset and generate errors.