Specifications

Caveats for Cisco IOS Release 12.0

78-6455-12

Resolved Caveats—Cisco IOS Release 12.0(11)

• CSCdr09895

Under heavy traffic, a PA-A3 port adapter might experience a SAR0 reload. If this condition occurs

on a Cisco 7200 series router, you must reload the router to recover normal operation. On a Cisco

7500 series RSP, this situation might result in commands from the RSP to the port adapter failing,

but the port adapter should be able to recover without a router reload. There is no workaround.

• CSCdr23563

A Cisco Route Switch Processor (RSP) that is configured with multiprotocol over ATM (MPOA)

clients might take more packets than usual (approximately 500) to transfer the data through MPOA

shortcut. There is no workaround.

• CSCdr25598

A Cisco Route Switch Processor (RSP) might reload when Generic Traffic Shaping (GTS) is

enabled on an interface. This situation only affects RSPs. The RSP will reload when you configure

the GTS with the traffic-shape group interface configuration command with an access list that has

a deny statement in it. There is no workaround.

Wide-Area Networking

• CSCdp57518

In Cisco IOS Release12.0, if you use the ppp pap sent-username username password password

interface configuration command on a dialer profile, this command must also be added to the

physical interface. There is no workaround.

• CSCdp79091

With X.25 over TCP (XOT), when there are many IP addresses in the X.25 route command and the

first IP address is unreacheable, a Cisco router will take the next IP address. The default

X.25 parameters are then used instead of the ones configured on the X.25 interface which causes

the X.25 public switch to clear the call. There is no workaround.

• CSCdp99013

When Frame Relay traffic shaping is configured and either custom queueing or priority queueing

is enabled at the virtual circuit (VC) level, an alignment error might occur. The error occurs when

the priority/custom queue list checks User Datagram Protocol (UDP) packets and the current packet

is a UDP packet that is queued because of traffic shaping. There is no workaround.

• CSCdr28255

A Cisco router might reload with the following error when the frame-relay qos-autosense and

frame-relay traffic-shaping interface configuration commands are configured:

System was restarted by error - an arithmetic exception.

Workaround: Disable frame-relay qos-autosense and conﬁgure the shaping parameters manually

instead.