Extreme 3804 User Guide

Page of 227
S
UMMIT
 S
WITCH
 I
NSTALLATION
 
AND
 U
SER
 G
UIDE
5-13
VLAN N
AMES
snap
 — Ethertype inside an IEEE SNAP packet encapsulation.
The values for 
snap
 are the same as the values for 
etype
, described previously.
config protocol fred add llc feff
config protocol fred add snap 9999
A maximum of seven protocol filters, each containing a maximum of six protocols, can 
be defined, however no more than seven protocol should be active and configured for 
use.
For more information on SNAP protocol for Ethernet protocol types, see TR 
11802-5:1997 (ISO/IEC) [ANSI/IEEE std. 802.1H, 1997 Edition].
D
ELETING
 
A
 P
ROTOCOL
 F
ILTER
If a protocol filter is deleted from a VLAN, the VLAN is assigned a protocol filter of 
none
. You can continue to configure the VLAN, however no traffic is forwarded to the 
VLAN until a protocol is assigned to it.
P
RECEDENCE
 
OF
 T
AGGED
 P
ACKETS
 O
VER
 P
ROTOCOL
 F
ILTERS
If a VLAN is configured to accept tagged packets on a particular port, incoming packets 
that match the tag configuration take precedence over any protocol filters that are 
associated with the VLAN.
VLAN N
AMES
The Summit supports up to 256 different VLANs. Each VLAN is given a name that can 
be up to 32 characters. VLAN names can use standard alphanumeric characters. The 
following characters are not permitted in a VLAN name:
Space
Comma
Quotation mark
VLAN names must begin with an alphabetical letter. Quotation marks can be used to 
enclose a VLAN name that does not begin with an alphabetical character, or that 
contains a space, comma, or other special character.
Summit.bk : 5VLAN.FM  Page 13  Thursday, June 18, 1998  9:27 AM