Defining Custom (User) Rules; Defining Port Rules - Alcatel OmniSwitch 6624 Network Configuration Manual

Defining VLAN Rules

Defining Custom (User) Rules

A custom rule captures mobile port frames that contain a specified pattern of data at a specified location.
Custom rules require the user to specify the following parameter values:
Parameter Definition
offset A number between 0 and 72. Specifies the number of bytes into the
frame where the pattern (value) is found.
value A four byte hex value that specifies a pattern of data (e.g., 60020000).
mask A four byte hex value that identifies the bytes in the pattern to compare
to the frame contents at the offset location. Use 'f' in the mask to mark
bytes in the pattern to match and '0' to mark bytes in the pattern to
ignore (e.g., ffff0000 is the mask for the 60020000 value pattern).
To define a custom rule, enter vlan followed by an existing VLAN ID then user followed by offset, data
pattern, and mask values. For example, the following command creates a custom rule for VLAN 310:
-> vlan 310 user 14 e0000000 ff000000
In this example, frames received on a mobile port that contain E0 in the specified data pattern located at
the 14th byte of the frame qualify for dynamic assignment to VLAN 310.
Use the no form of the
the offset and data pattern values to identify which rule to remove.
-> vlan 310 no user 14 e0000000

Defining Port Rules

Port rules do not require mobile port traffic to trigger dynamic assignment. When this type of rule is
defined, the specified mobile port is immediately assigned to the specified VLAN. As a result, port rules
are often used for silent network devices, which do not trigger dynamic assignment because they do not
send traffic.
Port rules only apply to outgoing mobile port broadcast types of traffic and do not classify incoming traf-
fic. In addition, multiple VLANs can have the same port rule defined. The advantage to this is that broad-
cast traffic from multiple VLANs is forwarded out one physical mobile port. When a mobile port is
specified in a port rule, however, its incoming traffic is still classified for VLAN assignment in the same
manner as all other mobile port traffic.
To define a port rule, enter vlan followed by an existing VLAN ID then port followed by a mobile
slot/port designation. For example, the following command creates a port rule for VLAN 755:
-> vlan 755 port 2/3
In this example, all traffic on VLAN 755 is flooded out mobile port 2 on slot 3.
Note that it is possible to define a port rule for a non-mobile (fixed, untagged) port, however, the rule is
not active until mobility is enabled on the port.
Use the no form of the
-> vlan 755 no port 2/3
OmniSwitch 6624/6648 Network Configuration Guide
vlan user command to remove a custom rule. Note that it is only necessary to enter
vlan port command to remove a port rule.
Configuring VLAN Rule Definitions
April 2004 page 7-21