Specifications

Release Notes for Cisco IOS Release 12.0 S

78-7130-11 Rev. B0

Caveats

though it successfully created an LVC when the ATM driver actually failed to complete the request.

The output of the show atm vc privileged EXEC command shows the LVC in the INACTIVE state,

so the destination cannot be pinged over the affected LVC.

This situation occurs only when you set the virtual path identifier (VPI) or virtual channel identifier

(VCI) label range negotiated during Label Distribution Protocol (LDP)/Tag Distribution Protocol

(TDP) session establishment larger than the VC range of the interface and when all the VC

resources on the interface are exhausted.

This situation usually does not occur when the ATM interface is connected to a BPX, IGX, MGX,

or any ATM switch, because the VC resources are constrained by the ATM switch during label

range negotiation.

Workaround: Set the label range to be smaller than the VC space to ensure that this condition never

occurs.

• CSCds36057

A Cisco 7500/RSP series router with a Versatile Interface Processor 4 (VIP4) and a PA-MC-2T3+

multichannel port adapter might reload after the shutdown interface configuration command is

entered on a Multilink interface followed by the no shutdown interface configuration command.

There is no workaround.

• CSCds36165

On a Cisco 12000 series Gigabit Switch Router (GSR), Per Interface Rate Control (PIRC) may not

function properly on Engine 2-based Packet-over-SONET (POS) line cards. There is no

workaround.

• CSCds39861

Multiprotocol Label Switching (MPLS) ATM Tag Distribution Protocol (TDP) bindings may not

reestablish when TDP adjacencies flap. This situation may occur under high CPU utilization or

when TDP neighbor adjacencies flap. This situation has been observed only when the TDP

neighbor is running Cisco IOS Release 12.0(10)S or an earlier release. You can diagnose this

problem by using the show tag-switching atm-tdp bindings privileged EXEC command. The

symptoms are that the LER will have a tag ATM binding for a destination prefix while the

downstream router will not. There is no workaround.

• CSCds43008

On a Cisco 7200 series router, if a policy map is configured with multiple classes and attached to

an interface, the following error messages might be displayed after the configuration is saved in

NVRAM and the router is reloaded:

class d1 ^ % Invalid input detected at ’^’ marker.

class q1 ^ % Invalid input detected at ’^’ marker.

Workaround: Reconfigure the policy map after the router is reloaded.

• CSCds44514

A Cisco 12000 series Gigabit Switch Router (GSR) may display messages similar to the following

message if the router is configured with access control lists (ACLs) that use the “log-input”

keyword on gigabit or Fast Ethernet interfaces:

%ALIGN-3-TRACE: -Traceback= 4036C724 402D9A38 4031B8D0 400BA094 00000000 00000000

00000000 00000000

Workaround: Remove the “log-input” keyword in the ACL definition.