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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)S2
• CSCsd09324
Symptoms: When reloading a router(lsnt-ap-pe1, Cisco 7500 platform) with Cisco IOS interim
Release 12.0(31.4)S1 from any Cisco IOS Release 12.0(28)S4b image, several
IDBINDEX_SYNC-3-IDBINDEX_ENTRY_LOOKUP and traceback occur in the standby log.
Conditions: This symptom has been observed on a Cisco 7500 router platform with MVPN.
Workaround: There is no workaround.
• CSCsd10973
Symptoms: When an RP switchover occurs after you have reloaded a line card that is configured for
MFR and MLP, the MFR and MLP links may remain down.
Conditions: This symptom is observed on Cisco 12000 series that runs Cisco IOS
Release 12.0(28)S4, that runs in SSO mode, and that is configured with a 6-port channelized T3
Engine 0 line card and a 1-port channelized OC-12 ISE line card.
Workaround: Enter the shutdown interface configuration command followed by the no shutdown
interface configuration command on the affected MFR and MLP interfaces.
Further Problem Description: Note that the symptom does not occur when the router runs in RPR+
mode.
• CSCsd11646
Symptoms: On a router that runs Multiprotocol Label Switching (MPLS), the
“%SYS-3-OVERRUN:” and “%SYS-6-BLKINFO” error messages may be generated and a
software-forced crash may occur on the router.
Conditions: This symptom is observed when you enter the show mpls ldp discovery command
under the following condition:
–
There are multiple LDP adjacencies configured through one interface.
–
The adjacencies between peers through this interface have not been fully established for some
peers.
–
The unestablished LDP adjacencies are coming while you enter the show mpls ldp discovery
command.
Workaround: Do not enter the show mpls ldp discovery command while multiple LDP adjacencies
are coming up. Rather, enter the show mpls ldp neighbor [detail] command while multiple LDP
adjacencies are coming up.
• CSCsd11701
Symptoms: When multicast hardware acceleration is enabled, a wrong label stack may be imposed
on packets that have an IP destination address below 16.x.x.x. This situation occurs, for example,
when the IP destination address is 10.1.1.1 and when the ingress interface is an MPLS VPN VRF
subinterface that is configured for 802.1q. Note that in this situation, the CEF forwarding
information is correct, that is, it has the correct label stack.
Conditions: This symptom is observed on a Cisco 12000 series that is configured with a 3-port GRE
Engine 2 line card but may occur on any Engine 2 line card that has VRF interfaces. The symptom
occurs only when multicast hardware acceleration is enabled.
A list of the affected releases can be found at
http://www.cisco.com/cgi-bin/Support/Bugtool/onebug.pl?bugid=CSCei01644. Cisco IOS
software releases that are not listed in the “First Fixed-in Version” field at this location are not
affected.
Workaround: There is no workaround.
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