CISCO IOS in a Nutshell

Name

frame-relay de-list — global

Synopsis

frame-relay de-listlist-number {protocol type | interface type number} characteristic
no frame-relay de-list list-number {protocol type | interface type number} characteristic
            

Configures

Discard Eligibility (DE)

Default

None

Description

This command defines packets that are eligible for discard during times of congestion on a Frame Relay switch. Packets matched by this list have the “discard eligible” bit set in the Frame Relay header.

list-number

An identifying number. This number identifies the list when it is referenced by other commands, particularly frame-relay de-group. A DE list may be defined by several frame-relay de-list statements with the same number.

protocol type

Specifies the protocol of the packets to be selected by this list. Possible values are arp, apollo, appletalk, bridge, clns, clns_es, clns_is, compressedtcp, decnet, ip, ipx, vines, and xns.

interface type number

Specifies the interface of packets to be selected for the list; that is, you can specify that all traffic coming through a certain interface should be marked as discard-eligible. The interface must be a serial interface, an Ethernet interface, or the null interface.

characteristic

Specifies the characteristics of the packets that are eligible for discard. It must be one of the following: fragments (fragmented packets eligible for discard), tcp port (TCP traffic on the specified port), udp port (UDP traffic on the specified port), list access-list (traffic matched ...