Allied Telesis AT-S63 User Manual
Page 159
AT-S63 Management Software Menus Interface User’s Guide
Section I: Basic Operations
159
assumes that the other port is not part of an LACP trunk. Instead it
functions as a normal Ethernet port by forwarding network traffic.
However, it does continue to send LACPDU packets. If it begins to receive
LACPDU packets, it automatically transitions to an active or standby mode
as part of an aggregate trunk.
If a switch is to support more than one aggregate trunk, it may be
necessary to place each trunk in a separate aggregator, while in other
cases you may be able to create just one aggregator and let the switch
discern the individual aggregate trunks for you, automatically. The
determining factor is whether the trunks are going to the same or different
devices. If the trunks are going to the same device, you need to create a
different aggregator for each trunk. If they are going to different devices,
you can create just one aggregator and the switch can differentiate the
aggregate trunks itself.
Here are two examples. Figure 39 illustrates an AT-9400 Series switch
with two LACP trunks, each containing three links. Because both
aggregate trunks go to the same 802.3ad-compliant device, in this case
another Fast Ethernet switch, each trunk requires a separate aggregator.
Figure 39. Example of Multiple Aggregators for Multiple Aggregate Trunks
AT-9400 Series Switch
802.3ad-compliant
Aggregate Trunks
in Different Aggregators
Ports 1 - 3
in Aggregator 1
Ports 12 -14
in Aggregator 2
Ethernet Switch
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
LINK
MODE
LINK
MODE
FAULT
RPS
MASTER
PWR
MODE
STATUS
AT-8524M
Fast Ethernet Switch