Specifications

1076
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S6
• CSCej69557
Symptoms: After you reload a PE router that functions in an MVPN topology and that is configured
for sparse mode and Auto-RP, the router may not learn the Auto-RP that is advertised by both a local
and remote CE router, preventing traffic from resuming to flow.
Conditions: This symptom is observed on a Cisco 12000 series that runs an interim release for
Cisco IOS Release 12.0(32)S and that functions as a PE router. The symptom may also occur in
other releases of Release 12.0S.
Workaround: Enter the clear ip mds line command.
• CSCej82265
Symptoms: An MPLS TDP peer is down.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(31)S3 and that has the mpls ldp protocol tdp command configured on the interface
on which TDP peering cannot be established. The peer router has the mpls ldp protocol both
command configured.
Workaround: Enter the mpls ldp protocol tdp command on the peer router. Note that this
workaround may not be plausible for routers that run a legacy Cisco IOS software that only supports
TDP.
• CSCej86175
Symptoms: In a multicast VPN (MVPN) environment, when a Stateful Switchover (SSO) occurs on
a PE router, the multicast traffic in the MVRF does not recover because the neighboring PE router
fails to re-establish its PIM neighbor relationship. Note that the symptom does not occur for unicast
traffic.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(31)S2 or an interim release for Release 12.0(32)S and that functions as a PE router
(PE1) in the following topology:
multicast origination --> PE2 --> PE1 --> CE1 --> multicast termination
When an SSO occurs on PE1, PE2 does not re-establish its PIM neighbor relationship with PE1 in
the MVRF. PE1 and PE2 are global PIM neighbors.
Workaround: Reload PE1.
Further Problem Description: When the symptom occurs, PE1 still shows PE2 as its PIM neighbor
in the MVRF. Clearing the multicast route in the MVRF does not help to resolve this issue.
• CSCin79691
Symptoms: QoS information disappears from a FlexWAN module or VIP that is configured with a
distributed MFR interface.
Conditions: This symptom is observed after the FlexWAN module or VIP resets or after the interface
flaps.
Workaround: Remove the service policy from the interface and reapply it to the interface.
• CSCin96583
Symptoms: After an OIR of a VIP on a Cisco 7500 series, MLP traffic causes a very heavy CPU load
on the RP, in turn causing failures in the IPC configuration and memory allocation (malloc) failures.
Conditions: This symptom is observed on a Cisco 7500 series that is configured with a large number
of distributed MLP bundles.
Workaround: There is no workaround.