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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
Workaround: There is no workaround.
• CSCsc30648
Symptoms: A POS line card that is configured with third-party vendor Small Form-Factor Pluggable
Interface Converters (SFPs) and that is installed in a Cisco 12000 series fails the security check.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(30)S3 or Release 12.0(31) during the initial boot process.
Note that when the router runs Release 12.0(28)S3 and you boot the router with the SFPs already
installed, the symptom does not occur. However, when you reload the router and then remove and
reinsert the SFPs, they do not pass the security check either.
Workaround: There is no workaround.
• CSCsc40236
Symptoms: Incorrect outgoing labels are installed for BGP-IPv4 Multipath prefixes.
Conditions: This symptom has been observed anytime that a label changes from a BGP-IPv4
Multipath peer.
Workaround: Clearing the BGP neighbor should allow the correct labels to be installed.
• CSCsc65393
Symptoms: A 4-port Gigabit Ethernet ISE line card may crash.
Conditions: This symptom is observed on a Cisco 12000 series that is configured for multicast
traffic.
Workaround: There is no workaround.
• CSCsc79397
Symptoms: In an MVPN topology running sparse-mode in the core with data-MDTs, an interruption
in traffic in the core (e.g. reloading a P router) may cause a PE router to stop sending traffic to the
core.
Conditions: The MVPN traffic is riding a sparse-mode data-MDT when a P router is reloaded. The
interruption to the traffic causes the traffic to fall back to the default-MDT and the data-MDT sparse
group enters the registering state. If the traffic resumes before the data-MDT mroute times out, it
will initially be forwarded over the default-MDT and then switch to the data-MDT but no register
traffic is sent.
Workaround: Enter the clear ip mds line x where x is the Ingress LC on PE router. Note that Cisco
recommends the use of SSM for data-MDTs and this will avoid the issue entirely.
• CSCsc82234
Symptoms: A multicast RPF check fails when the maximum-paths ei/jointfilesconvert/415844/bgp command is configured
as part of an IPv4 VRF.
Conditions: This symptom is observed on a Cisco router that runs Cisco IOS Release 12.0(31)S2
and that is configured for L2TPv3.
The symptom occurs because RPF expects the gateway for the VPNv4 route to be either in the same
VRF or in the global routing table context, which is not the case when L2TPv3 is configured.
Workaround: Disable the maximum-paths ei/jointfilesconvert/415844/bgp command.
• CSCsc83961
Symptoms: Both the protect and the working APS interfaces receive traffic.
Conditions: This symptom is observed on a Cisco router that is configured with a SIP-600 in which
POS SPAs are installed.
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