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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(31)S1
Alternate Pool: None Free: 0 Cause: No Alternate pool
-Process= "Pool Manager", ipl= 0, pid= 6
-Traceback= 607FE10C 607FF1EC 6076F71C 6080C1D0 6080C400
%TCP-6-NOBUFF: TTY0, no buffer available
-Process= "BGP I/O", ipl= 0, pid= 139
-Traceback= 6098B4EC 609938C8 60993C1C 60D55CE4 60D0BEB0
Conditions: This symptom is observed on a Cisco router that is in the processing of building BGP
sessions for about 80,000 prefixes and about 1200 BGP peers.
Workaround: There is no workaround.
CSCeg52659
Symptoms: A Cisco 7200 series may not withdraw a BGP route from an iBGP peer.
Conditions: This symptom is observed on a Cisco 7200 series that runs Cisco IOS Release 12.3(3)
when the clear ip /jointfilesconvert/415844/bgp neighbor-address soft out command is entered for one of the members of the
peer group of which the Cisco 7200 series is a member and when some changes to the outbound
policy are made to the same member of the peer group. This situation causes some prefixes to remain
struck in the other members of the peer group.
The symptom is a very old behavior of the BGP peer group functionality: when one member of a
peer group is cleared via either a hard reset or a soft reset and a policy change causes some of the
prefixes to be withdrawn, inconsistencies may occur in the routes on the other members of the peer
group.
Workaround: For peer groups and neighbors that are members of a peer group, do not enter the BGP
neighbor-specific clear ip /jointfilesconvert/415844/bgp neighbor-address soft out command or the clear ip /jointfilesconvert/415844/bgp
neighbor-address command. Rather, enter the peer group-specific clear ip /jointfilesconvert/415844/bgp peer-group-name
soft out command or the clear ip /jointfilesconvert/415844/bgp peer-group-name command.
CSCeh33504
Symptoms: A router terminates 102,000 VPNv4 routes but route reflectors (RRs) report only a a
subset of the total.
Conditions: This symptom is observed on a Cisco MGX RPM-XF that runs Cisco IOS
Release 12.3(11)T4 when 204 routes are configured per VRF over 496 VPNs (one VPN has about
1000 routes). However, Cisco MGX RPM-PRs that function as RRs show that only 76245 routes are
terminated on the Cisco MGX RPM-XF. The symptom is platform-independent and may also occur
in other releases.
Workaround: There is no workaround.
CSCeh35246
Symptoms: A router may crash when a subinterface on which OSPF is running is deleted.
Conditions This symptom is observed when the mpls ldp sync command is configured under OSPF.
Workaround: There is no workaround.
CSCeh35659
Symptoms: When the ip /jointfilesconvert/415844/bgp fast-external-fallover permit interface configuration command is
enabled on the main interface of a 4-port Gigabit Ethernet ISE line card and on a subinterface of a
connected BGP neighbor, and when you enter the shutdown interface configuration command on
the main interface, the BGP session that is established on the subinterface remains up for about 150
to 180 seconds before the BGP hold timer causes the session to go down.
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