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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)S5
Conditions: This symptom has been observed on a Catalyst 6500 switch running Cisco IOS Release
12.2SXF.
Workaround: A reset of the interface and/or a reset or reload of the FlexWAN module might resolve
the issue.
CSCsd82249
Symptoms: In MPLS VPN topology, where E3 4xOC12 ATM line card is a Core-facing line card,
after performing a reload on any of Egress line cards, the ATM line card may reload.
Conditions: This symptom has been observed on a E3 4xOC12 ATM line card configured with
MPLS Aware Netflow, on a Cisco 12000 series that runs Cisco IOS Release 12.0(32)S2 or
12.0(32.1)S4.
Workaround: There is no workaround.
Wide-Area Networking
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.
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
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS Release 12.0S
when QoS is configured on at least one interface on the VIP in which the channelized port adapter
is installed. The symptom occurs after the affected interface has flapped very frequently because of
OSI layer 1 errors.
Workaround: Remove and reconfigure the controller of the affected interface.
CSCsd21476
Symptoms: A router crashes when you attempt to delete a Frame Relay-to-Ethernet connection.
Conditions: This symptom is observed when you first remove the Frame Relay interface via an OIR
and then you attempt to delete the Frame Relay-to-Ethernet connection.
Workaround: Re-insert the Frame Relay interface before attempt to delete the Frame
Relay-to-Ethernet connection.
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