Allied Telesis AT-8550 - Manual (Page 78)

Types of VLANs
4-12
To define a protocol filter, do the following:
1. Create a protocol using the following command:
create protocol
For example:
create protocol fred
The protocol name can have a maximum of 31 characters.
2. Configure the protocol using the following command:
config protocol add
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/ethert
ype/index.html
❑ llc — LLC Service Advertising Protocol (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).
❑
snap — Ethertype inside an IEEE SNAP packet encapsulation.
The values for snap are the same as the values for etype ,
described previously.
For example:
config protocol fred add llc feff
config protocol fred add snap 9999
A maximum of fifteen protocol filters, each containing a maximum of
six protocols, can be defined. However, no more than seven
protocols can be active and configured for use.