Allied Telesis AT-x930-28GPX, Руководство по установке

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x930 Series Installation Guide for Virtual Chassis Stacking
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Trunks of SFP Ports on AT-x930-28GSTX Switches
AT-x930-28GSTX Switches have 24 Gigabit copper ports numbered 1R to
24R and 24 SFP ports numbered 1 to 24 on the front panels. As explained
in “SFP Ports” on page 38, the ports are paired together. Copper port 1R
and SFP port 1 are one pair, copper port 2R and SFP port 2 are another
pair, and so on. Only one port in a pair can be active at a time. The copper
Gigabit port is the active port when its companion SFP port is unused. The
SFP port is the active port when an SFP transceiver is installed and linked
to a network device.
You can use the copper ports or SFP Gigabit ports on AT-x930-28GSTX
Switches as trunk ports. For directions on using copper Gigabit ports, refer
to “Trunks of Copper 10/100/1000Mbps Ports” on page 67. Here are the
guidelines to using SFP Gigabit ports as trunks:

Stacks can have up to four switches.

Trunks can have up to eight SFP ports per switch.

Trunks can have both copper Gigabit ports and Gigabit SFP ports.

Stacks can have both 28- and 52-port switches.

You have to configure the master and member switches of the
stack by designating the Gigabit ports of the trunk with the STACK
ENABLE FRONT-PANEL-PORTS and STACKPORT commands,
and adding the members switches to the master switch as
provisioned switches.

The SFP ports of the trunk have to be at their default settings. You
cannot change the settings of trunk ports.

The SFP transceivers must be from Allied Telesis. Switches might
not form the stack with SFP transceivers from other network
equipment providers. For a list of supported transceivers, refer to
the product’s data sheet on the Allied Telesis web site.
Note
Trunks of SFP transceivers require AlliedWare Plus version 5.5.1-
2.1 or later.
For instructions, refer to Chapter 13, “Building the Stack with Copper or
SFP Gigabit Ports” on page 165.
Here are examples of trunks of SFP Gigabit ports for stacks of AT-x930-
28GSTX Switches. The example in Figure 27 on page 70 is a stack of two
AT-x930-28GSTX Switches. The trunk consists of SFP ports 1 to 4 on
both switches. (The maximum number of trunk ports per switch is eight
ports.) As with trunks of copper Gigabit ports, managing the stack will be
easier if you select the same ports as the trunk on the switches and
connect the same ports together, when possible.