Specifications

1383
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(27)S
Workaround: Enter the tag-switching ip interface configuration command followed by the no
tag-switching ip interface configuration command on the newly-created GRE tunnel interface.
• CSCeb37367
Symptoms: When the MPLS VPN Carrier Supporting Carrier feature is configured on a Cisco router,
Label Distribution Protocol (LDP) may advertise a local label binding without installing an
associated entry in the Multiprotocol Label Switching (MPLS) forwarding table. When peers of the
Cisco router receive the advertised label binding and use the Cisco router as an MPLS next hop for
the prefix for which there is no entry in the MPLS forwarding table, packet loss occurs.
Conditions: This symptom is observed when the prefix is advertised by both Interior Gateway
Protocol (IGP) and Border Gateway Protocol (BGP).
Workaround: Deconfigure and then reconfigure BGP on the Cisco router.
First Alternate Workaround: Reset the BGP connections.
Second Alternate Workaround: Disable and then reenable IP over MPLS globally by using the no
mpls ip global configuration command followed by the mpls ip global configuration command.
• CSCeb44306
Symptoms: A Cisco router that is configured with service policies may reload during the bootup
process.
Conditions: This symptom is observed on a Cisco 7500 series that is configured with a Route Switch
Processor 8 (RSP8) and a Versatile Interface Processor 4-80 (VIP4-80).
Workaround: There is no workaround.
• CSCeb46191
Symptoms: When a Cisco router is configured for both internal Border Gateway Protocol (iBGP)
load balancing and Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN),
incorrect MPLS labels may be installed. When one of the load-balancing links flaps, connectivity
may be lost between the VPN sites.
Conditions: This symptom is observed in the Cisco IOS releases that are listed in the “First Fixed-in
Version” field at the following location:
http://www.cisco.com/cgi-bin/Support/Bugtool/onebug.pl?bugid=CSCdy76273.
Cisco IOS software releases that are not listed in the “First Fixed-in Version” field at this location
are not affected.
Workaround: Disable iBGP load balancing.
• CSCeb47812
Symptoms: A Cisco 7500 series or Cisco 7600 series may generate the following error message on
its console:
Invalid memory action (malloc) at interrupt level
Conditions: This symptom is observed when you enter the clear counters EXEC command.
Workaround: There is no workaround.