3com S7906E Manuel De Montage

 

1-3 

z 

Switches of the S7900E series that support extended LACP functions can function as both member 

devices and intermediate devices in LACP MAD implementation.  

z 

For details about IRF, member devices, intermediate devices, and the LACP MAD mechanism, see 

IRF in the System Volume.  

 

Operational key 

When aggregating ports, link aggregation control automatically assigns each port an operational key 

based on port attributes, including the port rate, duplex mode and link state configuration.  

In an aggregation group, all selected ports are assigned the same operational key.  

The contents of class-two configurations are listed in 

In an aggregation group, a member port 

different from the aggregate interface in the class-two configurations cannot be a selected port.  

Table 1-1 Class-two configurations 

Port isolation 

Whether a port has joined an isolation group 

QinQ 

QinQ enable state (enable/disable), TPID values in VLAN 
tags, outer VLAN tags to be added, inner-to-outer VLAN 
priority mappings, inner-to-outer VLAN tag mappings, 
inner VLAN ID substitution mappings 

VLAN 

Permitted VLAN IDs, default VLAN, link type (trunk, hybrid, 
or access), IP subnet-based VLAN configuration, 
protocol-based VLAN configuration, tag mode 

MAC address learning 

MAC address learning capability, MAC address learning 
limit, forwarding of frames with unknown destination MAC 
addresses after the upper limit of the MAC address table is 
reached 

 

z 

Some configurations are called class-one configurations. Such configurations, for example, GVRP 

and MSTP, can be configured on aggregate interfaces and member ports but will not affect the 

select state of link aggregation member ports.  

z 

The change of a class-two configuration setting may affect the select state of link aggregation 

member ports and thus the ongoing service. To prevent unconsidered change, a message warning 

of the hazard will be displayed when you attempt to change a class-two setting, upon which you 

can decide whether to continue your change operation.