Allied Telesis AT-S62 - Manual (Page 308)

Chapter 21: Port-based and Tagged Virtual LANs
308 Secton V: Virtual LANs
Specifying a Management VLAN
The management VLAN is the VLAN through which an AT-8500 Series
switch expects to receive management packets. This VLAN is important if
you will be managing a switch remotely or using the enhanced stacking
feature of the switch.
Management packets are packets generated by a management
workstation when you remotely manage a switch using Telnet, SSH, or a
web browser. The switch will act upon the management packets only if
they are received on a port that is a member of the management VLAN.
The default management VLAN on an AT-8500 Series switch is the
Default_VLAN. If you do not create any additional VLANs and link the
switches together using untagged ports, then there will be no need to
specify a new management VLAN in order to remotely manage the
devices.
However, if you create additional VLANs on your switches, it may be
necessary for you to create a management communications path and then
specify that path as the new management VLAN.
Below are several rules to observe when using this feature:
ˆ The management VLAN must exist on each AT-8500 Series switch
that you want to manage.
ˆ All of the switches in an enhanced stack must use the same
management VLAN. Consequently, you must use the following
procedure to specify the management VLAN in the AT-S62 software
on each slave and master switch of an enhanced stack.
ˆ The uplink and downlink ports on each switch that are functioning as
the tagged or untagged data links between the switches must be either
tagged or untagged members of the management VLAN.
ˆ The port on the switch to which the management station is connected
must be a member of the management VLAN. (This rule does not
apply when managing the switch locally through the RS232 Terminal
Port.)
Here is an example. Let’s assume you have an enhanced stack of seven
AT-8500 Series switches with one master switch. If the uplink and
downlink ports between the various switches are members of the
Default_VLAN and if the management station is connected to a port of the
Default_VLAN, you will be able to manage all the switches without
designating a new management VLAN because the Default_VLAN is the
default management VLAN.
Now let’s assume that rather than using the Default_VLAN you decide to
create a VLAN called NMS with a VID of 24 to support enhanced stacking