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Port Channel Configuration
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For the dynamic aggregation group, the members of the same group have the same
operation Key, for the static aggregation group, the ports of Active have the same
operation Key.
The port aggregation is that multi-ports are aggregated to form an aggregation group,
so as to implement the out/in load balance in each member port of the aggregation group
and provides the better reliability.
10.2.1
Static LACP Aggregation
Static LACP aggregation is enforced by users configuration, and do not enable LACP
protocol. When configuring static LACP aggregation, use ―on‖ mode to force the port to
enter the aggregation group.
10.2.2
Dynamic LACP Aggregation
1. The summary of the dynamic LACP aggregation
Dynamic LACP aggregation is an aggregation created/deleted by the system
automatically, it does not allow the user to add or delete the member ports of the dynamic
LACP aggregation. The ports which have the same attribute of speed and duplex, are
connected to the same device, have the same basic configuration, can be dynamically
aggregated together. Even if only one port can create the dynamic aggregation, that is the
single port aggregation. In the dynamic aggregation, LACP protocol of the port is at the
enable state.
2. The port state of the dynamic aggregation group
In dynamic aggregation group, the ports have two states: selected or standby. Both
selected ports and standby ports can receive and send LACP protocol, but standby ports
can not forward the data packets.
Because the limitation of the max port number in the aggregation group, if the current
number of the member ports exceeds the limitation of the max port number, then the
system of this end will negotiates with the other end to decide the port state according to
the port ID. The negotiation steps are as follows:
Compare ID of the devices (the priority of the system + the MAC address of the
system). First, compare the priority of the systems, if they are same, then compare the
MAC address of the systems. The end with a small device ID has the high priority.
Compare the ID of the ports (the priority of the port + the ID of the port). For each port
in the side of the device which has the high device priority, first, compare the priority of the
ports, if the priorities are same, then compare the ID of the ports. The port with a small
port ID is selected, and the others become the standby ports.
In an aggregation group, the port which has the smallest port ID and is at the selected
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