Allied Telesis RAPIER I - Manual (Page 25)

Software Version 2.8.1 25
Software Version 2.8.1
C613-10477-00 REV B
Switching Enhancements
This Software Version includes the following enhancements to switching:
■ Ordering Hardware Filters in 48-Port Switches
■ Limiting Rapid MAC Movement
■ Route Update Queue Length
■ Removing a Description from a Switch Port
■ Securing a Single VLAN through Switch Filters
■ Change of Debug Command Syntax
■ Enhanced Static Switch Filtering on Ports within a Trunk Group
■ Ethernet Protection Switching Ring (EPSR)
This section describes the enhancements. The new and modified commands to
implement them are described in
Command Reference Updates .
Ordering Hardware Filters in 48-Port Switches
This feature applies only to the following products: AT-8648, AT-8748, AT-8848,
and the Rapier 48i. These products contain 2 switching instances, which adds
complexity to the filtering process when packets are being sent between
instances.
This Software Version allows you to select between two modes of using
classifier-based packet filtering in 48-port switches: port-specific filters first, or
non port-specific filters first.
You can select different modes using the new set switch hwfilter mode
command. Selecting the right mode when setting up classifier-based packet
filters ensures that packets are filtered as expected across switch instances. The
switch defaults to port-specific filters first. You can change the filtering mode
on the switch by using the command:
set switch hwfilter mode={psf|npsf}
Port-specific filters apply to traffic either ingressing or egressing a particular
port. They use a classifier which specifies the iport or eport parameter. Non
port-specific filters can apply to all traffic travelling through the switch. Non
port-specific filters are created with a classifier that does not have the iport or
eport
parameter specified.