Avaya Configuring DLSw Services Bedienungsanleitung PDF herunterladen (Seite 35)

Data Link Switching Overview

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DLSw Filtering

Bay Networks provides three ﬁltering mechanisms that affect DLSw trafﬁc:

• Inbound trafﬁc ﬁlters

• DLSw prioritization

• Protocol prioritization

Inbound Trafﬁc Filters

DLSw supports inbound trafﬁc ﬁltering. You can establish ﬁlters associated with

any remote DLSw TCP port. The ﬁlters allow the router to

• Drop a packet

• Log a packet

• Forward a packet to a speciﬁc address (outbound to TCP)

For DLSw services:

• Actions other than LOG apply only to broadcast frames sent over the TCP/IP

network.

For more information on how to access and conﬁgure trafﬁc ﬁlters for DLSw

services, refer to

Conﬁguring Trafﬁc Filters and Protocol Prioritization

DLSw Prioritization

DLSw prioritization allows you to prioritize trafﬁc within DLSw based on

predeﬁned or user-deﬁned ﬁelds. Examples of DLSw prioritization criteria

include

• Source and destination SAP; this ﬁeld can be used to assign NetBIOS trafﬁc

(SAP 0xF0) to a lower priority than SNA trafﬁc.

• Source and destination MAC address; this can be used to provide host bound

trafﬁc preference over other trafﬁc

• Any ﬁeld in the SNA Transmission Header (TH) and Response/Request

Header (RH); this can be used to provide Class Of Service (COS) priority

preference

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Avaya Configuring DLSw Services Bedienungsanleitung Seite 35