Overview, Figure 1: static port trunk example – Allied Telesis AT-S63 User Manual
Page 77
AT-S63 Management Software Features Guide
Section I: Basic Operations
77
Overview
A static port trunk is a group of two to eight ports that function as a single
virtual link between the switch and another device. Traffic is distributed
across the ports to improve performance and enhance reliability by
reducing the reliance on a single physical link.
A static port trunk is easy to configure. You simply designate the ports of
the trunk and the management software automatically groups them
together. You can also control how traffic is distributed over the trunk
ports, as described in “Load Distribution Methods” on page 78. The
example in Figure 1 illustrates a static port trunk of four links between two
AT-9400 Switches.
Figure 1. Static Port Trunk Example
Redundancy and link backup are not supported in a static trunk. If a link is
lost on a port, the trunk’s total bandwidth is reduced. Although the traffic
carried by the lost link is shifted to one of the remaining ports in the trunk,
the bandwidth remains reduced until the lost link is reestablished or
another port is added to the trunk.
Network equipment vendors tend to employ different techniques for static
trunks on their products. Consequently, a static trunk on one device might
not be compatible with the same feature on a device from a different
manufacturer. For this reason, static trunks are typically employed only
between devices from the same vendor.
FAULT
RPS
MASTER
POWER
CLASS 1
LASER PRODUCT
STATUS
TERMINAL
PORT
1
3
5
7
9
11
2
4
6
8
10
12
13
15
17
19
21
23R
14
16
18
20
22
24R
AT-9424T/SP
Gigabit Ethernet Switch
1
3
5
7
9
11
13
15
17
19
21
23R
2
4
6
8
10
12
14
16
18
20
22
24R
23
24
L/A
D/C
D/C
L/A
D/C
L/A
1000 LINK / ACT
HDX / COL
FDX
10/100 LINK / ACT
PORT ACTIVITY
L/A
1000 LINK / ACT
SFP
SFP
24
SFP
23
FAULT
RPS
MASTER
POWER
CLASS 1
LASER PRODUCT
STATUS
TERMINAL
PORT
1
3
5
7
9
11
2
4
6
8
10
12
13
15
17
19
21
23R
14
16
18
20
22
24R
AT-9424T/SP
Gigabit Ethernet Switch
1
3
5
7
9
11
13
15
17
19
21
23R
2
4
6
8
10
12
14
16
18
20
22
24R
23
24
L/A
D/C
D/C
L/A
D/C
L/A
1000 LINK / ACT
HDX / COL
FDX
10/100 LINK / ACT
PORT ACTIVITY
L/A
1000 LINK / ACT
SFP
SFP
24
SFP
23