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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)S
Workaround: Configure the mode monitor to be “active”. The functionality of the mode monitor is
limited to the “active” mode only.
• CSCin79312
Symptoms: An outage may occur when you attempt to connect via the console port to a
Cisco ONS 15540, and routine messages are generated that relate to the loss of light on wave ports
that are turned on. Interface alarm flaps may cause a hardware watchdog timeout, and the platform
may fail to switch over to the standby CPU.
Conditions: These symptoms are observed on a Cisco ONS 15540 during normal operation when
optical interfaces are not used not shut down. The symptoms may be platform-independent.
Possible Workaround: Shut down any unused interfaces.
• CSCuk51587
Symptoms: The following error message is generated when you insert a VIP into a previously empty
slot of a Cisco 7500 series.
%COMMON_FIB-2-HW_IF_INDEX_ILLEGAL: Attempt to create CEF interface for unknown if
with illegal index: 0
Conditions: This symptom is observed on a Cisco 7500 series that is configured for CEF.
Workaround: There is no workaround.
Interfaces and Bridging
• CSCea29435
Symptoms: A VC that is configured on an ATM PA-A3 port adapter may stop receiving traffic.
Conditions: This symptom is observed on a Cisco 7x00 router that is configured with an ATM
PA-A3 port adapter when the default MTU is changed to a higher value.
Workaround: Enter the shutdown interface configuration command followed by the no shutdown
interface configuration command on the subinterface on which the VC is configured.
• CSCeb60620
Symptoms: A Cisco Route Switch Processor (RSP) that is configured as a bridge may not pass
bridged traffic, regardless of the protocols that are configured on Ethernet interfaces. This situation
can lead to a loss of connectivity.
Conditions: This symptom is observed on a Cisco RSP that is running a Cisco IOS rsp-jsv-mz image.
Workaround: There is no workaround.
• CSCee55632
Symptoms: A Cisco 7500 series may leave ATM PVCs up when the ATM interface is shut down.
Conditions: This symptom is observed on a Cisco 7500 series that has a PA-A3 when the CPU
utilization of the VIPs is high.
Workaround: There is no workaround.
• CSCef23253
Symptoms: When you activate a serial interface on a PA-MC-8TE1+ port adapter that is installed in
a VIP, dCEF may be disabled on the slot in which the PA is installed (in this example, in slot 3) and
the following error message is generated:
%FIB-3-FIBDISABLE: Fatal error, slot 3: IPC Failure: timeout
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