Specifications

48
Release Notes for Cisco IOS Release 12.0 S
78-7130-11 Rev. B0
Caveats
• CSCdr78008
A Cisco 7200 series router with hardware compression enabled on BRI interfaces might pause
indefinitely, and console access will be lost.
Workaround: Disable the hardware compression on the affected interfaces, or use software
compression.
• CSCds25165
A Cisco Route Switch Processor 8 (RSP8) might enter into an indefinite loop at bootup and display
“%SYS-2-INTSCHED:’eventdimiss’” messages at level 6 without dropping to the ROMMON
prompt if a boot host tftp:[[[//host]/directorypath]/filename] configuration command is present in
the startup configuration. See CSCds25135, page 57 for further information.
Workaround: Change the URL syntax in the configuration command to use the IP address instead
of the host name. For example, use boot host tftp:[[[//a.b.c.d]/directorypath]/filename].
• CSCds30675
If a Cisco 7500/RSP series router has the configuration register set so that the router returns to the
ROM Monitor after a reload or fatal error occurs (instead of resetting and reloading after a reload
or fatal error), you will be unable to access a flash disk or flash card in one of the PCMCIA slots
from the ROM Monitor after the router is reset.
Workaround: Perform a power cycle on the router.
• CSCds52207
A Cisco 7500/RSP series router might reload with an arithmetic exception at shape_command
when traffic shaping is being configured. There is no workaround.
Interfaces and Bridging
• CSCdp81786
Enabling distributed Cisco Express Forwarding (dCEF) on a Cisco 7500 series router that is
running Packet-over-SONET (POS) IP might cause the router to experience repeated Versatile
Interface Processor (VIP) reloads.
Workaround: Disable dCEF.
• CSCds20358
Under certain circumstances, numerous “ignore” messages might be displayed on a PA-A1 port
adapter interface. The output of the show controllers cbus command and the show vip accu
command is clean.
Workaround: Enter the shutdown command followed by the no shutdown command.
• CSCds21729
A Versatile Interface Processor (VIP) on a Cisco 7500/RSP series router running Cisco IOS
Release 12.0(9)S might reload with a bus error when the processor memory on that VIP is low. The
cause of the reload in the crashinfo file is an “ALIGN-1-FATAL” message.
Temporary workaround: Reduce memory usage on the VIP (for example, by disabling distributed
Cisco Express Forwarding (dCEF)).
• CSCds24213
The channelized interface on a Channelized T3 (CT3) card stops passing traffic. In this situation,
the show controllers cbus privileged EXEC command shows the txlimit value pegged down to 0:
Serial2/1/0/4:1, txq 48001A18, txacc 4800009A (value 0), txlimit 10