3com 5500-ei pwr Installation Instruction

 

1-2 

Table 1-1 Consistency considerations for ports in an aggregation 

STP 

State of port-level STP (enabled or disabled) 

Attribute of the link (point-to-point or otherwise) connected to the port 

Port path cost 

STP priority  

STP packet format 

Loop protection  

Root protection 

Port type (whether the port is an edge port) 

QoS 

Rate limiting 

Priority marking 

802.1p priority 

Congestion avoidance 

Traffic redirecting 

Traffic accounting 

Link type 

Link type of the ports (trunk, hybrid, or access) 

GVRP 

GVRP state on ports (enabled or disabled) 

GVRP registration type 

GARP timer settings 

VLAN-VPN 

State of VLAN-VPN (enabled or disabled) 

TPID on the ports 

State of inner-to-outer tag priority replication (enabled or disabled) 

 

The Switch 5500-EI supports cross-device link aggregation if XRN fabric is enabled.  

 

Depending on different aggregation modes, the following three types of link aggregation exist: 

z 

Manual aggregation 

z 

Static LACP aggregation 

z 

Dynamic LACP aggregation 

A manual aggregation group is manually created. All its member ports are manually added and can be 

manually removed (it inhibits the system from automatically adding/removing ports to/from it). Each 

manual aggregation group must contain at least one port. When a manual aggregation group contains 

only one port, you cannot remove the port unless you remove the whole aggregation group.