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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(31)S4
• CSCin86070
Symptoms: Polling the port speed (ifSpeed) for a subinterface returns a speed of 100 Mbps, which
is incorrect.
Conditions: This symptom is observed on a 12000 series that is configured for MFR.
Workaround: Do not poll the ifSpeed of the subinterface. Rather, poll the ifSpeed of the main
interface.
• CSCin95125
Symptoms: dCEF switching does not function when Frame Relay over L2TPv3 is configured on a
2-port OC-3 POS port adapter (PA-POS-2OC3) that is installed in a VIP 6-80.
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS
Release 12.0(30)S3 when an interface of the PA-POS-2OC3 faces the core of the network. When
traffic from the core leaves the PA-POS-2OC3 to a CE router, dCEF switching functions fine.
However, when traffic form the CE router leaves the PA-POS-2OC3 to the core, dCEF switching
does not function and the VIP 6-80 punts the traffic to the RSP.
Workaround: There is no workaround.
• CSCin97815
Symptoms: Counters in the output of the show policy-map interface mfr command do not
increment for any type and/or class of service. Even the class default shows no packets. The counters
in the output of the show frame-relay pvc command show the packets correctly.
Conditions: This symptom is observed when a map class is configured on a subinterface that is part
of an MFR (FRF.16) bundle and when the map class consists of both an input and output service
policy.
Workaround: There is no workaround.
• CSCsa65822
Symptoms: Traffic from an Engine 3 or Engine 5 line card to an egress line card that is installed in
slot 0 stalls.
Conditions: This symptom is observed on a Cisco 12000 series when you insert a new line card and
remove the line card before it reaches the “IOS RUN” state, for example, when the line card is still
in the “IOS STRT” or “IOS UP” state.
Workaround: After you have inserted a line card, wait until the line card is in the “IOS RUN” state
before you remove it. If the line card becomes stuck before reaching the “IOS RUN” state, remove
the line card, and enter the show controller tofab queue 0 command on other Engine 3 or Engine
5 line cards in the chassis to check if the tofab queues towards slot 0 are uncorrupted. If the queues
are corrupted, reload slot 0 to recover from the situation.
• CSCsb65210
Symptoms: A SIP does not accept the show controller fia command when you enter the command
either via the execute-on slot slot-number show controller fia command or directly via the console
of the line card, and a “% Incomplete command” message is generated.
Conditions: This symptom is observed on a Cisco 12000 series.
Workaround: There is no workaround.
• CSCsb88907
Symptoms: A Cisco 12000 series RP crashes when you enter the clear l2tun all command.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(30)S3 when the debug vpdn l2x-packets command is enabled on the router.
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