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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(30)S
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.
• CSCed79218
Symptoms: A Cisco 7200 series router with a PA-2CT3+ or PA-CT3 port adapter does not provide
the configured minimum bandwidth guarantees.
Conditions: This behavior appears to be limited to the multichannel T3 family of port adapters and
appears consistently upon the configuration of CBWFQ.
Workaround: There is no workaround.
• CSCed82152
Symptoms: An Engine 4+ line card may reset and generate errors.
Conditions: This symptom is observed after a manual RP switchover in RPR mode.
Workaround: There is no workaround.
• CSCed82592
Symptoms: A PXF engine on a Cisco 10000 series may unexpectedly crash and then the router may
crash.
Conditions: This symptom is observed on a Cisco 10000 series that runs Cisco IOS
Release 12.0(23)S5.
Workaround: There is no workaround.
• CSCed82964
Symptoms: L2 loadbalancing might be affected on an egress link bundle.
Conditions: This symptom is observed a Cisco 12000 series when the ingress interface is a regular
Engine 2 interface and when the member interfaces in the bundle are toggled.
Workaround: Enter the config mode of the port channel and exit.
• CSCed83129
Symptoms: A line card may crash when a router forwards multicast traffic in an MVPN
environment.
Conditions: This symptom is observed when the data multicast distribution tree (MDT)
advertisements that were received by the router expire. This situation causes the router to stop
decapsulating packets in the VRF context and causes the router to send packets only from the
interfaces that are defined in the global table.
Workaround: There is no workaround.
• CSCed84331
Symptoms: MPLS TE tunnel counters are inaccurate; the MPLS TE tunnel output rate counters may
exceed the physical interface capabilities that the tunnel uses.
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