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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)S
Workaround: If this is an option, do not use any subdirectory. Note that the symptom does not occur
when you format a disk.
• CSCec51408
Symptoms: After you reload a Cisco 7xxx series router, the vbr-nrt output-pcr output-scr
output-mbs command or the ubr output-pcr command may be missing from the configuration of the
IMA-group interface of a PA-A3-8T1IMA or PA-A3-8E1IMA port adapter.
Conditions: The symptom is observed when the vbr-nrt output-pcr output-scr output-mbs command
or the ubr output-pcr command is configured on an IMA-group interface that also has minimum
active links configured.
Workaround: There is no workaround.
• 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.
• CSCed95499
Symptoms: A Cisco router may crash if a PA driver attempts to convert an uncached iomem address
to a cached iomem address.
Conditions: This symptom is observed on a Cisco 7200 series that is configured with an NPE-G1.
Workaround: There is no workaround.
• CSCee34622
Symptoms: Neighbor adjacencies for the IS-IS, OSPF, or other routing protocol may bounce during
a Nonstop Forwarding (NSF) switchover.
Conditions: This symptom is observed when you enable a routing protocol for NSF and you enter
the external overload signalling router configuration command. The following configuration
illustrates this situation for IS-IS:
router isis area-tag
nsf
[cisco | ietf]
external overload signalling
Workaround: Disable the external overload signalling router configuration command.
• 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.
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