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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)S
Workaround: Do not configure ATM DXI encapsulation. Rather, configure HDLC, PPP, or Frame
Relay encapsulation.
• CSCeh11994
Symptoms: A reply of an LNS to a LAC may be delayed.
Conditions: This symptom is observed on a Cisco router that is configured as an LNS that has several
tunnels to different LACs.
Workaround: There is no workaround.
• CSCeh25440
Symptoms: InvARP packets on multiple MFR bundle interfaces may be dropped, causing traffic to
fail after you have reloaded microcode onto a line card that processes a high load of traffic over many
PVCs on MFR interfaces.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(31)S when 42 MFR bundles are configured over 336 full T1s and when egress MQC
is configured on the 42 MFR bundle interfaces. However, the symptom is not platform- and
release-specific.
Workaround: There is no workaround.
• CSCeh34067
Symptoms: The Route Processor (RP) of a Cisco 7613 may crash when stress traffic is processed on
all WAN links of FlexWANs in which channelized port adapters are installed and when interfaces
of the channelized port adapters flap.
Conditions: This symptom is observed when the channelized port adapters are configured for MFR.
The symptom may not be platform-specific.
Workaround: There is no workaround.
• CSCeh49616
Symptoms: Incoming MPLS packets with IETF Frame Relay encapsulation are process-switched.
Conditions: This symptom is observed only on a Cisco 7200 series.
Workaround: Do not configure IETF Frame Relay encapsulation. Rather, configure Cisco Frame
Relay encapsulation.
• CSCeh49910
Symptoms: With automatic protection switching (APS) configuration on CHOC12 Internet Services
Engine (ISE) cards, flapping the working link within a 2- to 3-second time interval may result in
some of the T1 links staying down.
Conditions: This symptom has been observed with APS configuration on a CHOC12 ISE card.
Workaround: Enter a shutdown command and then a no shutdown command to clear the problem.
• CSCeh58376
Symptoms: A serial interface on a channelized port adapter may stop forwarding traffic through the
router but traffic to and from the router over the interface may still go through. The Tx accumulator
“value” counter in the output of the show controllers cbus Exec command does not exceed the value
2, as is shown in the following example:
Router#sh controllers cbus | include Serial5/1/0.1/2/6/2:0
Serial5/1/0.1/2/6/2:0, txq E8001B40, txacc E8000412 (value 2), txlimit 26
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