Allied Telesis AT-S63 - Manual (Page 49)

AT-S63 Management Software Menus Interface User’s Guide
Section I: Basic Operations 49
Planning for Remote Management
There are a number of factors that need to be considered before you can
begin to remotely manage an AT-9400 Series switch with the Telnet
application protocol, the Secure Shell (SSH) protocol, or a web browser.
As explained in this section, these factors include whether the switch is an
isolated device (that is, not a member of an enhanced stack) or part of an
enhanced stack, and, if the latter, whether the switch is the master switch
of the stack or a slave switch.
Here are the main points:
ˆ An isolated or master switch must have at least one routing interface.
ˆ The routing interface on an isolated or master switch must be
designated as the local interface.
ˆ The master switch and slave switches of an enhanced stack must be
interconnected by a common VLAN of the local interface on the master
switch.
ˆ If the Default_VLAN (VID 1) is used as the common VLAN of the
switches in an enhanced stack, the slave switches do not need a
routing interface in the VLAN. However, a routing interface is required
if any other VLAN is used as the common VLAN.
ˆ The remote management workstation must be able to reach an
isolated switch or a master switch through the subnet of the local
interface of the switch.
A routing interface represents a logical connection to a network or subnet
local to the switch and is used to route packets among local (i.e. directly
connected) networks and subnets. An interface consists of an IP address
and subnet mask of a local subnet, and the identification number (VID) of
the VLAN on the switch where the subnet resides.
Interfaces are primarily intended for routing IPv4 packets, but there are
several AT-S63 management features that require at least one interface
on a switch for the feature to function properly. The common denominator
is the need of the switch to have an IP address. Remote management is
one of those features. To remotely manage a switch you have to be able to
specify its IP address. This is true whether you are using the Telnet
application protocol, the SSH protocol, or a web browser. (For a
discussion of the other management functions that require a routing
interface, refer to Chapter 32, “Internet Protocol Version 4 Packet
Routing,” in the AT-S63 Management Software Command Line Interface
User’s Guide.