Specifications

1067
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S6
• CSCeg49796
Symptoms: Commands on a router may be unexpectedly removed from the running configuration.
Conditions: This symptom is observed on a router that is assigned as a neighbor to a BGP peer
group. For example, when the shutdown command was previously configured on the router, the
command is removed from the running configuration after the router is assigned as a neighbor to a
BGP peer group.
Workaround: Re-enter the commands on the router.
• CSCei16615
Symptoms: A neighbor reloads when you enter the shutdown interface configuration command
followed by the no shutdown interface configuration command on an interface of an LSP router that
functions as a tunnel headend.
Conditions: This symptom is observed when the following events occur:
– The tunnel headend sends a Path via RSVP to the neighbor but the Resv message is delayed.
– There is only one Path to the neighbor for the session.
– At the neighbor, the cleanup timer for the Path expires before the Resv message arrives, causing
the session to be terminated.
Workaround: There is no workaround.
• CSCsb36755
Symptoms: When BGP receives an update that has a worse metric route than the previously received
route for equal-cost multipath, the BGP table is updated correctly but the routing table is not,
preventing the old path from being deleted from the routing table.
Conditions: This symptom is observed on a Cisco router that is configured for BGP multipath.
Workaround: Enter the clear ip route network command.
• CSCsb54823
Symptoms: One router (R2) may begin sending updates to another router (R1) before R2 has
received the BGP prefix list from R1.
R1 does apply its inbound BGP prefix list so routes are denied if they need to be. However, R2 sends
routes to R1 which are denied by R1.
Conditions: This symptom is observed when both routers have negotiated a BGP outbound route
filter (ORF) and when R1 sends its BGP prefix list to R2.
Workaround: There is no workaround.
• CSCsb74708
Symptoms: An OSPF sham link may not form an adjacency.
Conditions: This symptom is observed when there is an interface in the global route table that has
an IP address that matches the IP address of the OSPF sham link neighbor.
Workaround: Reconfigure the routers so that the IP address of the OSPF sham link neighbor does
not match any IP addresses of interfaces in the global route table.
Alternate Workaround: Shut down the interface or change the IP address of the interface in the
global route table.
• CSCsb79749
Symptoms: The output of the show memory summary command may contain garbled characters in
the “What” column.