Specifications

1104
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S3
• CSCeh17636
Symptoms: The ISIS metrics assigned to passive-interfaces on a Cisco router will be removed from
the configuration after each reload. The passive- interface ISIS metric is used for biasing peer traffic
on certain routers.
Conditions: This symptom is observed on a Cisco router that is running Cisco IOS
Release 12.0(28)S1.
Workaround: Reconfigure the ISIS metric after each reload.
Miscellaneous
• CSCeb84128
Symptoms: A Cisco 10000 series may stop responding.
Conditions: This symptom is observed when you attach a child policy map with four policing
statements to a parent policy map with a bandwidth queue and when the parent policy map is already
attached to 100 T1 interfaces.
Workaround: Attach the child policy map to the parent policy map before you attach the parent
policy map to the interfaces.
• CSCed57204
Symptoms: When a large number of VRFs are configured, input OAM F5 loopback cells on the ATM
interface are dropped continuously, even without traffic. You can see drops at “OAM cell drops” in
the output of the show atm traffic EXEC command and at “Input queue drops” in the output of the
show interface ATM EXEC command.
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS Release 12.2(19),
Release 12.3(5), or Release 12.3(4)T2 when the oam-pvc manage and ip vrf global configuration
commands are configured. The symptom may also occur in other releases.
Workaround: Remove the ip vrf command. There is no workaround for a router such as a provider
edge (PE) router that cannot remove VRFs.
• CSCee49035
Symptoms: An incorrect update-source interface is selected for a multicast tunnel interface in an
MVPN configuration.
Conditions: This symptom is observed when the provider edge (PE) router is also an ASBR with
eBGP peers or has non-VPNv4 peers with higher IP addresses than the peer that has VPNv4 enabled.
MVPN requires that the BGP update source address of a VPNv4 peer is selected as the MTI source
address.
Workaround: There is no workaround.
• CSCee66058
Symptoms: SNMP users that have MD5 configured may become lost after a switchover in an RPR+
environment.
Conditions: This symptom is observed on a Cisco 7500 series and Cisco 12000 series that run
Cisco IOS Release 12.0(27)S1 in RPR+ mode.
Workaround: There is no workaround.
• CSCee83781
Symptoms: A Cisco router may reload when you enter the show ipv6 mfib verbose command for a
large MFIB.