Specifications

1077
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S6
• CSCin96590
Symptoms: A VIP crashes at the “free_wred_stats” function during an RPR+ switchover.
Conditions: This symptom is observed on a Cisco router that is configured with a VIP that has a
configuration with about 12 MLP bundles with two T1 members when QoS is applied while traffic
is flowing.
Workaround: There is no workaround.
• CSCin96692
Symptoms: On a Cisco 7500 series that is configured for dMLP, the txacc values of member
interfaces may be wrongly credited to other member interfaces, causing RSP-3-RESTART
messages, and finally causing traffic to stop.
Conditions: This symptom is observed when the member links flap continuously for some time
while traffic is being processed.
Workaround: There is no workaround.
• CSCsa65096
Symptoms: A router may crash during the boot process when the startup configuration includes the
hw-module shutdown command.
Conditions: This symptom is observed on a Cisco 10000 series but is platform-independent. A list
of the affected releases can be found at
http://www.cisco.com/cgi-bin/Support/Bugtool/onebug.pl?bugid=CSCsa51602. Cisco IOS
software releases not listed in the “First Fixed-in Version” field at this location are not affected.
Workaround: There is no workaround.
• CSCsb04721
Symptoms: When the Any Transport over MPLS (AToM) feature is enabled on a router, AToM
virtual circuits to a peer may not be re-established after an interface flap or after being reconfigured,
because the required targeted Label Distribution Protocol (LDP) session is not re-established.
Conditions: This symptom is observed when LDP is not configured on any interfaces via the mpls
ip interface configuration command, which is typically the case when MPLS Traffic Engineering
(TE) tunnels are used to transport AToM traffic between endpoints and when the mpls ip interface
configuration command is not enabled on any TE tunnels.
The symptom occurs in Cisco IOS software releases that include the fix for caveat CSCec69982
when any form of one of the following commands is configured on the router and appears in the
running configuration:
mpls ldp explicit-null
mpls ldp advertise-labels
mpls ldp session protection
mpls ldp password fallback
mpls ldp password option
mpls ldp password required
A list of the affected releases can be found at
http://www.cisco.com/cgi-bin/Support/Bugtool/onebug.pl?bugid=CSCec69982.
Workaround: Enter the mpls ip command on a TE tunnel interface or temporarily on a physical
interface to force LDP to be re-established.