3Com Switch 7750 Configuration Guide

Link Aggregation Configuration 189
■ An aggregation group containing special ports (such as 10GE port) which
require hardware aggregation resources has higher priority than any
aggregation group containing no special port.
■ A manual or static aggregation group has higher priority than a dynamic
aggregation group (unless the latter contains special ports while the former
does not).
■ For two aggregation groups of the same kind, the one that might gain higher
speed if resources were allocated to it has higher priority than the other one.
■ If the two groups can gain the same speed after resources are allocated to
them, the one with smaller master port number has higher priority than the
other one.
When an aggregation group of higher priority appears, the aggregation groups of
lower priorities release their hardware resources. For single-port aggregation
groups, if they can transceive packets normally without occupying aggregation
resources, they will not occupy hardware aggregation resources.
c
CAUTION: A load-sharing aggregation group contains up to two selected ports,
however, a non-load-sharing aggregation group can only have one selected port
at most and others are standby ports.
Link Aggregation
Configuration
c
CAUTION:
■ The following ports cannot be added to an aggregation group: destination
ports to be mirrored to, reflection ports to be remotely mirrored to, ports
configured with static MAC addresses, static-ARP-enabled ports, and
802.1x-enabled ports.
■ Ports with IP-MAC address binding configured cannot be added to an
aggregation group.
■ A port with port security enabled cannot be added to an aggregation group.
Configuring a Manual
Aggregation Group
You can create a manual aggregation group, or remove an existing manual
aggregation group (after that, all the member ports in the group are removed
from the ports).
You can manually add/remove a port to/from a manual aggregation group, and a
port can only be manually added/removed to/from a manual aggregation group.
Table 122 Configure a manual aggregation group
Operation Command Description
Enter system view system-view -
Create a manual aggregation
group
link-aggregation group
agg-id mode manual
Required