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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(32)S8
Workaround: There is no workaround.
• CSCsh19583
Symptoms: OIR backup CSC can result in packet loss
Conditions: Reinsert backup CSC
Workaround: There is no workaround.
• CSCsh38340
Symptoms: "show ip mds stats linecard" shows MDFS reloads on all LCs when multicast distributed
routing is added on a VRF through the configuration of "ip multicast-routing vrf vpn distributed"
Workaround: There is no workaround.
Further Problem Description: Note that whilst the MDFS reload is a real reload, it is without a
preceding clear so it will not generally cause traffic interruption as it merely causes the same
information to be downloaded to the linecards again. However in a highly scaled system running
close to the limit, the additional load introduced by a full MDFS reload of every linecard may cause
additional failures owing to maxing out of the CPUs.
• CSCsh39887
Symptoms: VRF feature clean-up error messages occur When trying to delete T1 interfaces from a
channel-group
Conditions: The condition occurs When trying to delete T1 interfaces from a channel-group
Workaround: Remove all the VRF configurations from the serial interface before trying to delete it.
• CSCsh41646
Symptoms: During Cisco IOS upgrade procedure on GSR, configuration from interface may be
removed from running configuration.
Conditions: This issue is detected when upgrading from Cisco IOS Release 12.0(31)S2 to
Cisco IOS Release 12.0(32)S2 and the missing configuration is from Gigabit Ethernet interface of
SPA-1XTENGE-XFP and SIP-600 card in slot 0. Problem only appear on rare situations. Adding
back congiguration will restore service.
Workaround: There is no workaround.
• CSCsh52903
Symptoms: When the linecard runs into some abnormal situation, the communications between SPA
and linecard may not be reliable. If it is occurs, it normally triggers the SPA IPC keepalive failure.
The failure of SPA keepalive/heartbeat results in SPA IPC restart. However, because of SPA IPC
communications, the restarting of SPA may never be completed, leaving SPA in out of service state.
Workaround: Reloading SPA should recover the SPA.
• CSCsh55956
Symptoms: 4 Port ISE Packet Over SONET OC-12c/STM-4 line card crashes.
Conditions: feature mode is enabled and traffic is passed through it in ingress direction in PE router
in a 6PE setup
Workaround: Disable feature mode using no hw-module slot <x> np mode feature.
• CSCsh59530
GSR router has been upgraded from Cisco IOS Release 12.0(31)S1C to Cisco IOS
Release 12.0(32)S6. On router’s reload the following error messages were printed in router’s log:
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