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FTOS Configuration Guide for the C-Series - Force10 Networks

FTOS Configuration Guide for the C-Series - Force10 Networks

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Table 13 lists <strong>the</strong> three <strong>for</strong>mats to filter, <strong>the</strong> keywords used in <strong>the</strong> CLI, and a description.<br />

Table 13 Three E<strong>the</strong>rnet Formats<br />

Format Keyword Description<br />

IEEE 802.3 llc The frame <strong>for</strong>mat complies with IEEE Standard 802.3 and contains<br />

both a Data Link Header and an LLC header.<br />

E<strong>the</strong>rnet II ev2 The frame <strong>for</strong>mat complies with <strong>the</strong> original E<strong>the</strong>rnet II specification,<br />

and <strong>the</strong> Data Link Header contains 14 bytes of in<strong>for</strong>mation. This<br />

<strong>for</strong>mat type does not contain an LLC header.<br />

IEEE 802.3<br />

SNAP<br />

snap The frame <strong>for</strong>mat complies with <strong>the</strong> IEEE Standard 802.3 SNAP<br />

(SubNetwork Access Protocol) specification. This <strong>for</strong>mat contains<br />

both a Data Link Header and an LLC header, in addition to a SNAP<br />

field (5 bytes).<br />

Since traffic passes through <strong>the</strong> filter in order of <strong>the</strong> filter’s sequence, you can configure <strong>the</strong> MAC ACL by<br />

first entering <strong>the</strong> MAC ACCESS LIST mode and <strong>the</strong>n assigning a sequence number to <strong>the</strong> filter.<br />

Table 14 Layer 2 ACL Supported Features<br />

E<strong>the</strong>rScale TeraScale C-<strong>Series</strong><br />

Feature Ingress Egress Ingress Egress Ingress Egress<br />

VLAN Per-VLAN/<br />

Range of VLANs<br />

Not supported Per-VLAN/Range<br />

of VLANs<br />

Is applied to all<br />

VLANs<br />

Not<br />

supported<br />

Logging No supported Not supported Supported Supported Not<br />

supported<br />

EV2/<br />

SNAP/<br />

LLC -1<br />

Configurable No supported Not configurable -1 Not<br />

configurable -1<br />

Note: -1: When a user configures an ACL <strong>for</strong> an e<strong>the</strong>rtype like “8137” <strong>for</strong> an encapsulation type like<br />

“SNAP”, <strong>the</strong> ACL applies to all encapsulation types (EV2, SNAP, LLC) <strong>for</strong> TeraScale.<br />

To create a filter with a specified sequence number, use <strong>the</strong>se commands in <strong>the</strong> following sequence,<br />

starting in <strong>the</strong> CONFIGURATION mode:<br />

Step Command Syntax Command Mode Purpose<br />

Not<br />

supported<br />

1 mac access-list extended access-list-name CONFIGURATION Create a extended MAC ACL<br />

and assign it a unique name.<br />

194 Layer 2

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