Reference Guide

Table Of Contents
show interfaces tail-drop-threshold
This command displays the tail drop threshold information. If you specify the unit/slot/port, the
command displays the tail drop threshold information for the specified interface.
Format show interfaces tail-drop-threshold [unit/slot/port]
Mode Privileged EXEC
Dierentiated Services Commands
This section describes the commands used to configure QOS Dierentiated Services (DiServ).
You configure DiServ in several stages by specifying three DiServ components:
1 Class
a Creating and deleting classes.
b Defining match criteria for a class.
2 Policy
a Creating and deleting policies
b Associating classes with a policy
c Defining policy statements for a policy/class combination
3 Service
a Adding and removing a policy to/from an inbound interface
The DiServ class defines the packet filtering criteria. The attributes of a DiServ policy define the way
the switch processes packets. You can define policy attributes on a per-class instance basis. The switch
applies these attributes when a match occurs.
Packet processing begins when the switch tests the match criteria for a packet. The switch applies a
policy to a packet when it finds a class match within that policy.
The following rules apply when you create a DiServ class:
Each class can contain a maximum of one referenced (nested) class
Class definitions do not support hierarchical service policies
A given class definition can contain a maximum of one reference to another class. You can combine the
reference with other match criteria. The referenced class is truly a reference and not a copy since
additions to a referenced class aect all classes that reference it. Changes to any class definition
currently referenced by any other class must result in valid class definitions for all derived classes,
otherwise the switch rejects the change. You can remove a class reference from a class definition.
Quality of Service Commands
ExtremeSwitching 200 Series: Command Reference Guide for version 01 .02.04.0007 597