Extreme networks Summit1 Manuale Utente

5-12

S

UMMIT

 S

WITCH

 I

NSTALLATION

 

AND

 U

SER

 G

UIDE

V

IRTUAL

 LAN

S

 (VLAN

S

)

The following protocol filters are predefined on the Summit:

IP

IPX

NetBIOS

DECNet

IPX_8022

IPX_SNAP

AppleTalk

If necessary, you can define a customized protocol filter based on EtherType, LLC, 
and/or SNAP. Up to six protocols may be part of a protocol filter. To define a protocol 
filter, do the following:

Create a protocol using the following command:

create protocol <protocol_name>

For example:

The protocol name can have a maximum of 31 characters.

Configure the protocol using the following command:

config protocol <protocol_name> add <protocol_type> <hex_value>

Supported protocol types include:

etype

 — EtherType

The values for 

etype

 are four-digit hexadecimal numbers taken from a list 

maintained by the IEEE. This list can be found at the following URL:

http://standards.ieee.org/regauth/ethertype/index.html

llc

 — LLC SAP

The values for 

llc

 are four-digit hexadecimal numbers that are created by 

concatenating a two-digit LLC Destination SAP (DSAP) and a two-digit LLC 
Source SAP (SSAP). The list of LLC SAPs can be found at the following URL:

http://stdsbbs.ieee.org/pub/general/LLC_list.txt

Summit.bk : 5VLAN.FM  Page 12  Thursday, June 18, 1998  9:27 AM