Displaying Acl Rules; Ingress Policing - Avaya Cajun P882 User Manual

Multiservice switch

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Displaying ACL Rules

Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, v5.3.1

Use the show access-lists command to display the ACL rules in an

The syntax of this command is:

Avaya>show access-lists [<access-list-name>]

For more information on this command, see Chapter 20, "Policy," in

the Command Reference Guide for the Avaya P550R, P580, P880, and P882

Multiservice Switches, Version 5.3.1.

Policing makes it possible for you to limit the bandwidth for ingress

queues. You limit the bandwidth by specifying the guaranteed bit

rate for a port. If this bit rate is exceeded, the switch drops the excess

For example, if you set policing on an ingress queue to be 5 Mbps,

and traffic exceeds that 5 Mbps rate, all traffic that exceeds the

5Mbps is dropped.

Only 80-series modules that are licensed for routing support the

policing feature.

The policing algorithm includes a normal burst threshold. This

threshold sets the size of bursts that is guaranteed transfer.

The switch uses queue 0 to forward protocol packets (ARP, VRRP,

OSPF, and so on) to the supervisor module. Do not disable this

queue. If you disable it, all protocol packets and learned packets are

discarded before reaching the supervisor module. If you enable

policing on queue 0, be sure to allocate the queue enough

bandwidth for management packets and learned packets. Failure to

allocate enough bandwidth to the queue may result in poor

network performance.

For information about how to set up policing, see

* Note: Avaya recommends that you do not set a port using

policing as the source port or mirror port for a port

mirror. When the switch limits the bandwidth of a port,

packets are subject to random drop. If packets from a

80-Series QoS

P550r P580 P880