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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(33)S3
Workaround: Disable “yellow detection” on the CHOC12 T1 link. For example, serial interface
12/0.7/6:0:
controller sonet 12/0
sts-1 7
no t1 6 yellow detection
! Wait for the T1 to stabilize.
t1 6 yellow detection
• CSCsv84690
Symptoms: The source MAC address is not learned properly for the bridge domain associated with
a VFI instance.
Conditions: Traffic is from CE2------PE1------CE1 (locally switched). Source MAC addresses of
packets from CE2 are not learned correctly. NetFlow is enabled on the interfaces of the PE.
Workaround: Disable NetFlow on the main interface.
• CSCsv94306
Symptoms: On a Cisco 12000 series Internet router E5/SPA POS interface, FRR reroute may take
up to 700 msec.
Conditions: This symptom is observed when the far-end RX fiber of the POS link is removed.
Workaround: Configure the pos delay triggers command on the interface to reduce delay in FRR.
Further Problem Description: When the RX fiber is removed on the far-end of the POS interface, the
far-end router is supposed to send LRDI to the Cisco 12000 series Internet router, and the LRDI will
trigger the FRR reroute. The E5/SPA current implementation is that remote end SONET alarm does
not trigger FRR in interrupt mode; it triggers FRR only in process context, which may take up to
700 msec to converge.
• CSCsv96395
Symptoms: A SIP-400 and SIP-601 crash continuously after the image is loaded.
Conditions: After the 32SY 11_23-date-coded image is loaded, SIP crashes when channelized SPAs
come up.
Workaround: There is no workaround.
• CSCsw17389
Symptoms: A SPA_PLIM-3-HEARTBEAT failure and tracebacks are seen for channelized SPAs.
All the traffic in the ingress direction is dropped.
Conditions: With traffic present, configure aggregate NF scheme on 4XT3/E3 SPA; channelized
SPAs get stuck in the booting state. (SIP comes up fine to IOS RUN state.)
Workaround: Perform a microcode reload to make the SPAs come up.
• CSCsw17390
Symptoms: A PVC flaps with the following error message:
ATM(ATM3/0/0.504): VC(17) Bad SAP received 00AD
Conditions: This symptom is observed on a Cisco 7600 with a FlexWAN and PAA3 when connected
to a Cisco 12000 ATM interface and when the PVC is configured for bridging.
Workaround: There is no workaround.
• CSCsw19951
Symptoms: A SUP720 may reset with the following:
RP: %C6K_PLATFORM-2-PEER_RESET: RP is being reset by the SP
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