Specifications

Release Notes for Cisco IOS Release 12.0 S

78-7130-11 Rev. B0

Caveats

Resolved Caveats—Cisco IOS Release 12.0(8)S

All the caveats listed in this section are resolved in Cisco IOS Release 12.0(8)S. This section describes

only severity 1 and 2 caveats.

IP Routing Protocols

• CSCdp15126

If you enable policy routing on a Fast Ethernet Inter-Switch Link subinterface, the packet that is

destined for the next hop is not policy routed. Instead, the packet is sent along the default route.

There is no workaround.

Miscellaneous

• CSCdm36033

The pos delay triggers line command is used for GSR POS interfaces connected to

internally-protected DWDM systems. This command is invalid for interfaces that are configured as

APS working or protected. Normally, even a few microseconds of line- or section-level alarms

(SLOS, SLOF, or LAIS) will bring down the link until the alarm has been clear for ten seconds. If

holdoff is configured, this link-down trigger is delayed for 100 ms. If the alarm stays up for more

than 100 ms, the link is brought down as it is now. If the alarm clears before 100 ms, the link is not

brought down.

• CSCdm82546

The Gigabit Switch Router (GSR) Performance line cards do not have the ability to load balance

between IP and tag adjacencies. There is no workaround.

• CSCdp05571

Entering the show access-list [#] command will report statistics for matches to fast Access Control

List (ACL) items. Statistics are reported on an item by item basis and appear in parenthesis to right

of the item. The statistics reported represent the running sum of matches to the item on all

interfaces. This new command output fixes the problem of statistics for ACLs not being displayed

in previous releases.

• CSCdp10843

When disabling distributed Cisco Express Forwarding (dCEF) on a running system, clean up all

forwarding entries on the line card and move all incoming packets to the Route Processor (RP). The

intent is to leave line card forwarding in the state it would have been in if dCEF had never been

enabled in the first place.

Midpoints for Multiprotocol Label Switching traffic engineering (MPLS-TE) tunnel link-state

packets (LSPs) do not get cleaned up when dCEF is disabled so when packets arrive at a Versatile

Interface Processor (VIP) with the MPLS labels for these stale midpoint entries, the VIP will not

forward these packets correctly.

Workaround: Reload any line card on which dCEF has been disabled if that line card is, or might

be at some point, an incoming interface for an MPLS-TE tunnel LSP.