Avaya Configuring Traffic Filters and Protocol Prioritization Manual de usuario descargar pdf (Pagina 26)

Configuring Traffic Filters and Protocol Prioritization

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Traffic Filter Components

The Configuration Manager creates traffic filters from template files that contain

filtering information. Traffic filter templates consist of three components:

• Criteria

The portion of the incoming packet, frame, or datagram header to be

examined

•Ranges

Numeric values (often addresses) to be compared with the contents of

examined packets

• Actions

What happens to packets that match the criteria and ranges specified in a filter

To create a traffic filter, you apply a filter template to a particular router interface.

Table 1-5

(at the end of this chapter) summarizes the inbound and outbound traffic

filter criteria and actions supported on specific interfaces.

Criteria

A f

ilter criterion is the portion of a packet, frame, or datagram header to be

examined. You can break down any packet into at least three components:

• The DLC (or data link) header. Examples of data link header types include:

-- Token ring (802.5)

-- Ethernet V.2 and IEEE 802.3

-- FDDI

-- PPP and Nortel Networks Standard

-- Frame Relay

• The upper-level protocol header. Examples of protocol header types include:

-- IP and TCP

-- Source route bridging (SRB)

-- DLSw

•User data

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Avaya Configuring Traffic Filters and Protocol Prioritization Manual de usuario Pagina 26