Specifications

1150
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S1
EXEC and Configuration Parser
• CSCee64504
Symptoms: A CPUHOG may occur for about 4.5 seconds when you enter the show running-config
command.
Conditions: This symptom is observed on a Cisco uBR10000 series but may also occur on other
platforms.
Workaround: Do not enter the show running-config command. Rather, enter the show config
command.
Further Problem Description: The show tech-support command also has a problem when it reaches
the show running-config command part. Changing the term length does not work as workaround.
Interfaces and Bridging
• CSCec15909
Symptoms: In a High Availability (HA) environment with Stateful Switchover (SSO) enabled and
while trying to configure framing for T1 on T3 PA, the standby route processor (RP) gets reloaded
giving a “CCB playback failed” error.
Conditions: The defect is seen with SSO or RPR-Plus enabled on T3 family of port adaptors. The
trigger is the change in framing configuration for T1 on T3 PA.
Workaround: Administratively shutdown all interfaces on T1 before changing the framing.
• CSCed75174
Symptoms: A router may not forward VLAN traffic.
Conditions: This symptom is observed on a Cisco router that runs Cisco IOS Release 12.0(28)S
when there are no features configured under VLAN.
Workaround: There is no workaround. The symptom does not occur in Release 12.0(25)S1.
• CSCee25605
Symptoms: When you enter the show ip interface brief, the output indicates that a serial
subinterface has a down status and that the protocol is down too:
router# show ip interface brief
Interface IP-Address OK? Method Status Protocol
Ethernet0/0 10.7.0.68 YES NVRAM up up
Ethernet0/1 unassigned YES NVRAM administratively down down
Ethernet0/2 unassigned YES NVRAM administratively down down
Ethernet0/3 unassigned YES NVRAM administratively down down
Ethernet0/4 unassigned YES NVRAM administratively down down
Ethernet0/5 unassigned YES NVRAM administratively down down
Serial4/0 unassigned YES NVRAM administratively down down
Serial4/1 unassigned YES NVRAM administratively down down
Serial4/2 unassigned YES NVRAM administratively down down
Serial4/3 unassigned YES NVRAM administratively down down
Serial4/4 unassigned YES NVRAM administratively down down
Serial4/5 unassigned YES NVRAM administratively down down
Serial4/6 unassigned YES NVRAM administratively down down