Specifications

Release Notes for Cisco IOS Release 12.0 S

78-7130-11 Rev. B0

Caveats

Resolved Caveats—Cisco IOS Release 12.0(10)S

All the caveats listed in this section are resolved in Cisco IOS Release 12.0(10)S. This section describes

only severity 1 and 2 caveats.

Basic System Services

• CSCdp45379

A Cisco 7200 series router with an NPE-300 network processing engine installed might not boot

up when certain Cisco IOS Release 12.0(5)XE3 subset images are installed. The router will pause

indefinitely in the early stage of booting up, and a power cycle is required to resume. For systems

set for auto boot, you will need to enter the break command to abort the boot process and break

out to the ROM monitor before the 12.0(5)XE3 image is launched for execution. You will then need

to either modify the software configuration register to revert to a manual boot of some other known

good image, or you will need to switch the PCMCIA flash card with a known good image in case

the system is set for a default image boot from the slot0: PCMCIA card. There is no workaround.

Interfaces and Bridging

• CSCdm06860

Cisco IOS Release 11.1(24)CC might return a wrong value for MIB object cardType for

PA-POSSW-MM/SM port adapters due to the Simple Network Management Protocol (SNMP)

agent in the Cisco IOS Release 11.1(24)CC. Values for PA-POSSW 401 are returned instead of

values for PA-POSSW 564 and PA-POSSW 564. There is no workaround.

• CSCdm11933

CT3/CE3 port adapters on a Cisco 7200 series router might drop TX packets under bursts of heavy

traffic instead of putting them in a hold queue if the number of outstanding transmit packets

temporarily exceeds the number specified by the TX limit. There is no workaround.

• CSCdp60859

When a channel on a CT3/CE3 port adapter is continually overstressed by traffic, other nonstressed

channels might experience some transmit packet drops. There is no workaround.

• CSCdp99579

Configuring an Async interface in any Cisco 7500 series Route Switch Processor (RSP) will

prevent the proper parsing of interface name for CT3/CE3 port adapters.

Workaround: Deconfigure any Async interface, and then write the configuration to NVRAM and

reload the router. Or, you can move the VIP from slot 0 to another slot.

• CSCdr00681

A Channelized T3 Interface Processor (CT3IP) driver on a Cisco 7500 series router might leak

particles from the receiving side, which results in the CT3IP seeing all serial interfaces as flapping

after a few hours. This situation can be observed by checking input errors in the show interface

output. There is no workaround.