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Port trunking overview, Static port trunk overview, Figure 15. static port trunk example – Allied Telesis AT-S79 User Manual

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Chapter 5: Port Trunking

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Section I: Using the Menus Interface

Port Trunking Overview

A port trunk is an economical way for you to increase the bandwidth
between the Ethernet switch and another networking device, such as a
network server, router, workstation, or another Ethernet switch. A port
trunk is a group of ports that have been grouped together to function as
one logical path. A port trunk increases the bandwidth between the switch
and the other network device and is useful in situations where a single
physical link between the devices is insufficient to handle the traffic load.

Static Port Trunk

Overview

A static port trunk consists of two to eight ports on the switch that function
as a single virtual link between the switch and another device. A static port
trunk improves performance by distributing the traffic across multiple ports
between the devices and enhances reliability by reducing the reliance on a
single physical link.

A static trunk is easy to configure. You simply designate the ports on the
switch that are to be in the trunk and the management software on the
switch automatically groups them together.

The example in Figure 15 illustrates a static port trunk of four links
between two AT-GS950/48 Gigabit Ethernet Smart Switches.

Figure 15. Static Port Trunk Example

Network equipment vendors tend to employ different techniques to
implement static trunks. Consequently, a static trunk on one device might
not be compatible with the same feature on a device from a different

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AT-GS950/24

24-Port 10/100/1000Mbps + 2 SFP Combo WebSmart Switch

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AT-GS950/24

24-Port 10/100/1000Mbps + 2 SFP Combo WebSmart Switch