Specifications

90
Caveats for Cisco IOS Release 12.0
78-6455-12
Resolved Caveats—Cisco IOS Release 12.0(5)
EXEC and Configuration Parser
• CSCdj92253
A Cisco router might unexpectedly restart if multiple connections are made from a virtual terminal,
and one of the connections is closed due to a session timeout while another connection is blocked
from sending data due to being flow controlled. There is no workaround.
• CSCdm15221
If you configure the asynchronous interface of any Route Switch Processor (RSP) chassis with a
VIP2 or VIP2-50 in slot 0, with any port adapter of any kind, the proper parsing of interfaces in
either port adapter in the VIP in slot 0 will be prevented.
Workaround: Deconfigure any asynchronous interface, write the configuration to NVRAM, and
reload the router. This defect is in all Cisco IOS Release 12.0 images. Another choice is to move
any VIP from slot 0 to another slot.
• CSCdm32506
A bus error might occur when you issue the show running-configuration command. There is no
workaround.
• CSCdm33057
A MICA modem line with flow-control software does not properly respond to an “XOFF” received
from the modem if the line is running an outbound Telnet session. Output from the show line
command shows that the line is in the “Waiting for XON” state. Although the Cisco IOS software
should wait for an “XON” before sending data out the line, it does not. There is no workaround.
• CSCdm39355
A Cisco router might reload during command completion if the length of the entire command after
completion exceeds PARSEBUF.
Workaround: Do not allow command completion if it exceeds PARSEBUF.
IBM Connectivity
• CSCdk51086
When QLLC is used as a transport mechanism for SNA traffic, X.25 might get stuck in “Receiver
not Ready” (RNR) when the input queue is full.
Workaround: Increase the capacity of the input queue to 1000 packets.
• CSCdk81731
When DLSw icanreach is configured on a router, the filter should be applied on source SAP for
the frames going out to remote peers, and on the destination SAP (in the remote peer) for the frames
going to the peer on which DLSW icanreach is configured. The filter is applied to both source SAP
and destination SAP in both DLSw peers. There is no workaround.
• CSCdm09164
A Dependent Logical Unit Requester (DLUR) router might reload with the following stacktrace:
RA: 0x6070294C[mu_processor(0x60702630)+0x31c] RA:
0x60702F84[remote_path_control(0x60702e50)+0x134] RA:
0x607044D0[pc_mainline(0x60703d60)+0x770] RA: 0x606FF3B8[xxxpcasm(0x606ff000)+0x3b8]
There is no workaround.