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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)S
Conditions: This symptom is observed when one of the member links of the MFR interface goes
down while there is continuous bidirectional 64-byte traffic that uses less than half the bandwidth.
The symptom occurs within 20 minutes after the traffic flow has started.
Workaround: Enter the shutdown command followed by the no shutdown command on the MFR
interface.
Alternate Workaround: Reconfigure the MFR interface.
• CSCin73902
Symptoms: When you perform an online insertion and removal (OIR) of a Versatile Interface
Processor (VIP) in which an Inverse ATM Multiplexer (IMA) port adapter is installed, the slave
Route Switch Processors (RSP) in the router may reload.
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS
Release 12.0(28)S, that is configured with two RSPs, and that has an IMA group configured.
Workaround: There is no workaround.
• CSCin74180
Symptoms: Spurious memory accesses may occur on a VIP in which one or more channelized port
adapters are installed. The CPU utilization may increase to 99 or 100 percent, causing the
performance of the VIP to be impacted.
Conditions: These symptoms are observed on a Cisco 7500 series that runs Cisco IOS
Release 12.3(6) but may also occur in other releases.
Workaround: There is no workaround.
• CSCin74347
Symptoms: Outbound security ACLs are not applied properly on Cisco 10000 series routers.
Conditions: This symptom is observed on all Cisco IOS Release 12.0 S images that contain the fix
for CSCed72686.
Workaround: There is no workaround.
• CSCin75482
Symptoms: A router may hang or crash when PA-MC-8TE1+ or PA-MC-2T3+ interfaces are
congested with traffic and a QoS configuration such as shaping is configured on the interfaces.
Conditions: This symptom is observed on a Cisco 7200 series but may also occur on other platforms.
Workaround: Avoid congesting the interfaces.
• CSCin77202
Symptoms: A secondary PRE crashes.
Conditions: This symptom is observed on a Cisco 10000 series when the state of the secondary PRE
changes while a switchover is in process.
Workaround: Reload the secondary PRE when it returns to the “Standby Hot” state.
• CSCin77553
Symptoms: A PA-A3-8T1IMA or PA-A3-8E1IMA port adapter that is installed in a Cisco 7xxx
series may display an increasing “rx_no_buffer” counter in the output of the show controllers atm
privileged EXEC command, and some PVCs that are configured on the port adapter may stop
receiving traffic.
Conditions: This symptom is observed when there is a high-traffic load on the PA-A3-8T1IMA or
PA-A3-8E1IMA port adapter.
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