Port trunking overview, Static port trunk overview, Figure 15. static port trunk example – Allied Telesis AT-S79 User Manual
Page 68

Chapter 5: Port Trunking
68
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 
1306
1
3
5
7
9
11
13
15
17
19
21
23
POWER
2
4
6
8
10
12
14
16
18
20
22
24
23
24
LINK/ACT
LINK/ACT
SPEED
LINK/ACT
SPEED
AT-GS950/24
24-Port 10/100/1000Mbps + 2 SFP Combo WebSmart Switch
1
3
5
7
9
11
13
15
17
19
21
23
POWER
2
4
6
8
10
12
14
16
18
20
22
24
23
24
LINK/ACT
LINK/ACT
SPEED
LINK/ACT
SPEED
AT-GS950/24
24-Port 10/100/1000Mbps + 2 SFP Combo WebSmart Switch
