Specifications

51
Caveats for Cisco IOS Release 12.0
78-6455-12
Resolved Caveats—Cisco IOS Release 12.0(9)
• CSCdp63021
A Cisco router might reload through the watchdog timer because Topology and Routing Services
(TRS) is looping on a zero length cv46 subvector in unmap_cv46. There is no workaround.
Interfaces and Bridging
• CSCdm74213
A Cisco PA-A1 is subject to rx packets with bad aal5_length field. If the erroneous length is too
small, it might corrupt memory and cause the router to reload. There is no workaround.
• CSCdp15196
A Cisco 7507 router that is running Cisco IOS Release 12.0(4)T might not return the correct results
if there is a change in the hold-queue value in any of the serial interfaces of a PA-8T port adapter
in a VIP2 motherboard. Although the size of the output queue seems to change after you enter the
hold-queue out interface configuration command, there is no real change. There is no workaround.
• CSCdp36862
A Cisco 7200 series router with a PA-4R port adapter might accept a packet with an invalid frame
check sequence (FCS) and pass it on to remote source-route bridging (RSRB). This situation does
not occur in the PA-4R-DTR port adapter. There is no workaround.
IP Routing Protocols
• CSCdk81576
When network statements are removed from the Open Shortest Path First (OSPF) configuration in
a router, there is no check executed for overlapping networks, which results in OSPF being disabled
on the corresponding interfaces.
Workaround: Remove the overlapping network statement, and then reinsert it.
• CSCdm54513
If there is a component route in the routing table that has exactly the same network and mask pair
as the summary route, OSPF might delete and later reissue the external summary routes.
Workaround: Perform a redistribution by entering the route-map global configuration command
with a deny statement in the access list.
• CSCdm75717
Internal Border Gateway Protocol (IBGP) routes cannot be redistributed to other protocols. There
is no workaround.
• CSCdp03960
A Cisco 7200 series router that has not been configured might fail to receive Open Shortest Path
First (OSPF) route updates from a neighbor router through an ATM LAN emulation (LANE)
interface when a script tries to clean and configure the Cisco 7200 series router. This situation does
not occur on a router that has already been configured.
Workaround: Reload the router, or enter the shutdown interface configuration command followed
by the no shutdown interface configuration command on the affected interface.