Specifications

50
Release Notes for Cisco IOS Release 12.0 S
78-7130-11 Rev. B0
Caveats
• CSCdr63002
When a Border Gateway Protocol (BGP) inbound route map is configured for a neighbor but the
route map is not defined, then the first prefix in the update is rejected. All other prefixes in the
update are accepted.
Workaround: Correct the configuration to remove the configured route map for the neighbor or to
create a corresponding route-map.
• CSCds57086
A Cisco 12000 series Gigabit Switch Router (GSR) might reload with the following error message
after the show ip bgp neighbors EXEC command is entered:
System was restarted by bus error at PC 0x6010E004, address 0xD0D0D0D
There is no workaround.
• CSCds59805
An area border router (ABR) that is generating a default route type 7 for a Not-So-Stubby-Area
(NSSA) may max-age the link-state advertisement (LSA) for the default route when you enter the
clear ip ospf redistribution EXEC command. There is no workaround.
• CSCds64673
A Cisco router that is running Cisco IOS Release 12.0(10)S may experience alignment errors
followed by a software-forced reload after a Border Gateway Protocol (BGP) neighbor flaps. There
is no workaround.
Miscellaneous
• CSCdp09791
If you upgrade a Cisco 7200 series router from Cisco IOS Release 11.1 CC to Cisco IOS
Release 12.0(4)S, the Simple Network Management Protocol (SNMP) counters for serial (T1)
interfaces might produce unreliable data. The router might experience traffic rates over 10 to 15
Mbps for T1 interfaces.
All serial T1 interfaces will exhibit this behavior. Serial interfaces on a 4xT1 PA (73-1389-05) and
on a Channelized 8xT1 PA (73-2488-05) might also exhibit this behavior. There is no workaround.
• CSCdp20755
In Cisco IOS Release 12.0 S, fast-switching policy-routed traffic might break when policy-routed
fast switching is configured on the tunnel interface itself.
Workaround: Enter the tunnel sequence-datagrams interface configuration command on all tunnel
interfaces.
• CSCdp26186
On a Cisco 12000 series Gigabit Switch Router (GSR), per-subinterface features on Frame Relay
subinterfaces are not supported by Channelized OC-12, Packet OC-3 Interface Processor (POSIP),
and DS3 line cards. There is no workaround.
• CSCdp39983
A Cisco Versatile Interface Processor (VIP) 2/40 that is running Cisco IOS Release 12.0(7)S might
reload in find_next_non_zero_acl_elem. There is no workaround.
• CSCdp39985
A Versatile Interface Processor (VIP) 2/40 that is running Cisco IOS Release 12.0(7)S might
experience a memory corruption resulting in a software-forced reload. There is no workaround.