Alcatel-Lucent 6850-48 网络指南

Defining VLAN Rules

Configuring VLAN Rule Definitions

OmniSwitch AOS Release 6 Network Configuration Guide

page 8-17

In this example, frames received on any mobile port must contain an IPX network a010590c address with 
a Novell Raw (802.3) encapsulation to qualify for dynamic assignment to VLAN 1200.

IPX network addresses consist of eight hex digits. If an address less than eight digits is entered, the entry 
is prefixed with zeros to equal eight characters. For example, the following command results in an IPX 
network address rule for network 0000250b:

-> vlan 1210 ipx 250b snap

If an encapsulation parameter value is not specified, this value defaults to Ethernet-II encapsulation. For 
example, either one of the following commands creates the same IPX network address rule:

-> vlan 1220 ipx 250c e2

-> vlan 1220 ipx 250c

If the IPX network address rule VLAN is going to route IPX traffic, it is important to specify a rule encap-
sulation that matches the IPX router port encapsulation. If there is a mismatch, connectivity with other 
IPX devices may not occur. See 

 for information about defining VLAN 

IPX router ports.

The following table lists keywords for specifying an encapsulation value:

Use the no form of the 

 command to remove an IPX network address rule. Note that it is only 

necessary to specify the IPX network address to identify which rule to remove.

-> vlan 1220 no ipx 250c

Protocol rules capture frames that contain a protocol type that matches the protocol value specified in the 
rule. There are several generic protocol parameter values to select from; IP Ethernet-II, IP SNAP, IPX 
Ethernet II, IPX Novell (802.3), IPX LLC (802.2), IPX SNAP, DECNet, and AppleTalk. If none of these 
are sufficient to capture the desired type of traffic, use the Ethertype, DSAP/SSAP, or SNAP parameters 
to define a more specific protocol type value.

To define a protocol rule, enter vlan followed by an existing VLAN ID then protocol followed by a valid 
protocol parameter value. For example, the following commands define a protocol rule for VLAN 1503 
and VLAN 1504:

-> vlan 1503 protocol ip-snap

-> vlan 1504 protocol dsapssap f0/f0

The first example command specifies that frames received on any mobile port must contain an IP SNAP 
protocol type to qualify for dynamic assignment to VLAN 1503. The second command specifies that 
frames received on any mobile port must contain a DSAP/SSAP protocol value of f0/f0 to qualify for 
dynamic assignment to VLAN 1504.

If an attempt is made to define an ethertype rule with a protocol type value that is equal to the value 
already captured by one of the generic IP or IPX protocol rules, a message displays recommending the use 
of the IP or IPX generic rule. The following example shows what happens when an attempt is made to 
create a protocol rule with an ethertype value of 0800 (IP Ethertype):