Avaya Configuring Traffic Filters and Protocol Prioritization Manuel d'utilisateur télécharger pdf (Page 53)

Inbound Traffic Filter Criteria and Actions

308645-15.0 Rev 00

3-3

Predefined Transparent Bridge Criteria

Each transparent bridge encapsulation method has specific, predefined criteria for

filtering frames. These predefined criteria are based on an offset to a header

reference field (Figure 3-1) and are a specified length. Table 3-2 lists the

predefined criteria for each encapsulation method, and the reference field, offset,

and length for each criterion.

Table 3-1. Transparent Bridge Encapsulation Support

Router Interface

Encapsulation Method

Ethernet 802.2 LLC LLC with SNAP Novell

Ethernet/802.3 (XCVR) Yes Yes Yes Yes

FDDI (FDDI) No Yes Yes No

Token ring (TOKEN) No Yes Yes No

Synchronous (COM) Yes Yes Yes Yes

Table 3-2. Predefined Criteria for Transparent Bridge Inbound Traffic

Filters

Encapsulation

Method Criterion Name

Reference

Field

Offset

(bits)

Length

(bits)

All MAC Source Address MAC 0 48

MAC Destination Address MAC 48 48

Ethernet Ethernet Type MAC 96 16

802.2 LLC Length

(Ethernet/802.3 and PPP only)

MAC 96 16

SSAP DATA_LINK 0 8

DSAP DATA_LINK 8 8

Control DATA_LINK 16 8

802.2 LLC with

SNAP

Length MAC 96 16

Organization Code (Protocol ID) DATA_LINK 24 24

Ethernet Type DATA_LINK 48 16

Novell Novell MAC 112 16

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 201 202

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Avaya Configuring Traffic Filters and Protocol Prioritization Manuel d'utilisateur Page 53