Specifications

1151
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S1
Serial4/7 unassigned YES NVRAM administratively down down
Serial5/0:23 10.0.0.1 YES NVRAM down down
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS
Release 12.0(26)S1 when you attempt to configure the interface and bring it up.
Workaround: There is no workaround.
• CSCee47714
Symptoms: Entering the shutdown command on a controller of a Packet over T1/E1 Network
Transceiver puts the controller permanently down. Entering the no shutdown command on the
controller does not bring the controller up.
Conditions: This symptom is observed on a Cisco 7500 series that runs Cisco IOS Release 12.0 S
and is specific to the controller that is installed in a PA-MC-8T1/E1, PA-MC-4T1/E1, or
PA-MC-2T1/E1 port adapter.
Workaround: There is no workaround.
• CSCee58873
Symptoms: The show controllers t1 slot/port command may show only the current interval.
Conditions: This symptom is observed on a Cisco 7200 series when FDL is configured.
Workaround: There is no workaround.
Further Problem Description: When FDL is configured, the router updates the MIB data after
checking for a valid local and remote MIB data interval that it receives from the T1 port adapter.
During the remote MIB update, and if the received data interval is invalid, the router clears both the
remote and the local data instead of clearing only the remote data and starting again.
• CSCin66616
Symptoms: The output of an snmpwalk for the entPhysicalDescr MIB on a PA-MC-8E1/120 may
shows the PA-MC-8E1/120 as unknown.
Conditions: This symptom is observed on a Cisco 7500 series in which a PA-MC-8E1/120 in
installed.
Workaround: There is no workaround.
• CSCin67296
Symptoms: Channelized interfaces on a channelized T3 line card or port adapter that is configured
for Frame Relay encapsulation may be in the up/down state, and DLCIs are inactive.
Conditions: This symptom is observed when you reload a Cisco platform and when the interfaces
were in the up/up state before you reloaded the platform.
Workaround: Enter the shutdown command followed by the no shutdown command on the
controller of either the T3 line card or port adapter on the Cisco platform or on the T3 line card or
port adapter on the platform at the remote end.
Alternate Workaround: Enter the shutdown command followed by the no shutdown command on
the main interface on the Cisco platform.
• CSCin74070
Symptoms: Performance degrades when the number of VCs through which traffic is sent is scaled
for PCRoMPLS AToM VCs.
Conditions: This symptom is seen on a Cisco 7500 series with a PCRoMPLS configuration on VCs.
Workaround: There is no workaround.