Mac filter match criteria, Dot1p, Dsap – Alcatel-Lucent 7750 SR OS User Manual

Page 383

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Filter Policies

7750 SR OS Router Configuration Guide

Page 383

MAC Filter Match Criteria

dot1p

Syntax

dot1p p-value [mask]
no dot1p

Context

config>filter>mac-filter>entry

Description

Configures an IEEE 802.1p value or range to be used as a MAC filter match criterion.

When a frame is missing the 802.1p bits, specifying an dot1p match criterion will fail for the frame
and result in a non-match for the MAC filter entry.

The no form of the command removes the criterion from the match entry.

Special Cases

SAP Egress — Egress dot1p value matching will only match if the customer payload contains the

802.1p bits; for example, if a packet ingresses on a null encapsulated SAP and the customer
packet is IEEE 802.1Q or 802.1p tagged, the 802.1p bits will be present for a match evaluation.
On the other hand, if a customer tagged frame is received on a dot1p encapsulated SAP, the tag
will be stripped on ingress and there will be no 802.1p bits for a MAC filter match evaluation; in
this case, any filter entry with a dot1p match criterion specified will fail.

Default

none

Parameters

p-value — The IEEE 802.1p value in decimal.

Values

0 — 7

mask — This 3-bit mask can be configured using the following formats:

To select a range from 4 up to 7 specify p-value of 4 and a mask of 0b100 for value and mask.

Default

7 (decimal)

Values

1 — 7 (decimal)

dsap

Syntax

dsap dsap-value [mask]
no dsap

Context

config>filter>mac-filter>entry

Format Style

Format Syntax

Example

Decimal

D

4

Hexadecimal

0xH

0x4

Binary

0bBBB

0b100

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