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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(30)S1
• CSCin87776
Symptoms: Multilink bundles on a Cisco 7500 router may start doing process switching instead of
dCEF. This will cause RSP CPU usage to shoot up and CPU hog of the RSP.
Conditions: This symptom is most likely to occur when a RPR+ switchover happens on an
HA-configured Cisco 7500. This issue can also occur when the MLP Link flaps.
Workaround: There is no workaround.
Further Problem Description: This problem will not happen with an SSO switchover, because the
MLP state is maintained (meaning the MLP interfaces will not flap). However, the problem still
could be seen if the Links flaps due to some other reason.
• CSCin88417
Symptoms: Transmit accumulator loss may be seen for MLP interfaces after VIP OIR. MLP may
stop forwarding or DCEF switching the packets if Transmit accumulator value goes to 0.
Conditions: This symptom has been observed on VIP OIR removal and insertion with traffic running
on MLP bundles.
Workaround: Reload VIP again while making sure that no traffic is going out on the MLP bundles
just immediately after VIP comes up.
• CSCsa42857
Symptoms: A duplex configuration (half/full) is not saved to NVRAM. This situation causes the
default configuration (half duplex) to be used after the router reloads.
Conditions: This symptom is observed on a PA-2FE port adapter that is installed in a Cisco 7200
series that runs Cisco IOS Release 12.0(28)S1.
Workaround: There is no workaround.
• CSCsa46154
Symptoms: A Route Processor (RP) failover occurs.
Conditions: This symptom occurs when you enter the show route-map command in one session and
remove several route maps in rapid succession in another session.
Workaround: Do not enter the show route-map command when you remove route maps in a
concurrent vty session.
• CSCsa46699
Symptoms: A Cisco 7200 series may crash because of a bus error when you remove a subinterface
or when you remove a service policy from an interface.
Conditions: This symptom is observed when a hierarchical policy map is configured, when the
policy map has a police action in the child only, and when the policy map is attached to two
interfaces. When the service policy is removed from one of the interfaces, the router may crash.
Workaround: Configure the same policy map with a different name on each interface.
• CSCsa46859
Symptoms: Cisco 10000 series routers using ATM VC bundles and QoS may have packets dropped
when an external ATM VC bundle using DSCP type of service traverses the Cisco 10000.
Conditions: When using ATM VC bundles and Cisco IOS Release 12.0 S on a Cisco 10000 series
router, ATM VC bundle traffic may be dropped. The problem arises when ATM bundles using DSCP
enter the Cisco 10000 router which only supports MPLS EXP type of service bits. Those code points
not matching an MPLS EXP TOS value exactly are dropped.
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