3com S7906E Manuel De Montage

 

1-14 

 

In an aggregation group, the port to be a selected port must be the same as the reference port in port 

attributes, and class-two configurations. To keep these configurations consistent, you should configure 

the port manually. 

z 

Reference port: Select a port as the reference port from the ports that are in up state and with the 

same class-two configurations as the corresponding aggregate interface. The selection order is as 

follows: full duplex/high speed, full duplex/low speed, half duplex/high speed, and half duplex/low 

speed, with full duplex/high speed being the most preferred. If two ports with the same duplex 

mode/speed pair are present, the one with the lower port number wins out. 

z 

Port attribute configuration includes the configuration of the port rate, duplex mode, and link state. 

z 

For details about class-two configurations, see section 

Class-two configurations.

 

When you configure cross-card link aggregation, if link aggregation across different types of cards, 

however, you may need to enable MAC address table synchronization manually, see section 

 

 

Network requirements 

As shown in 

 Device A and Device B are connected through their respective Layer 2 Ethernet 

ports GigabitEthernet 2/0/1 to GigabitEthernet 2/0/3.  

Aggregate the ports on each device to form a static link aggregation group, thus balancing traffic across 

the member ports. In addition, perform load sharing based on source and destination MAC addresses. 

Figure 1-2 Network diagram for Layer 2 static aggregation 

GE2/0/1

GE2/0/2

GE2/0/3

GE2/0/1

G

E

2/0/2

GE2/0/3

 

 

1)  Configure Device A 

# Configure the device to perform load sharing based on source and destination MAC addresses for link 

aggregation groups.  

<DeviceA> system-view 

[DeviceA] link-aggregation load-sharing mode source-mac destination-mac