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HP A3100-8 v2 SI Configuration Manual: Configuring Port Priority; Configuring The Link Type Of Ports

A3100 v2 switch series layer 2 - lan switching.
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Configuring port priority

The priority of a port is an important factor in determining whether the port can be elected as the root
port of a device. If all other conditions are the same, the port with the highest priority will be elected as
the root port.
On an MSTP-enabled device, a port can have different priorities in different MSTIs, and the same port
can play different roles in different MSTIs, so that data of different VLANs can be propagated along
different physical paths, implementing per-VLAN load balancing. You can set port priority values based
on the actual networking requirements.
Make this configuration on the leaf nodes only.
Follow these steps to configure the priority of a port or a group of ports:
To do...
Enter system view
Enter interface
view or port
group view
Configure the port priority
NOTE:
When the priority of a port changes, MSTP re-calculates the role of the port and initiates a state
transition.
A lower priority value indicates a higher priority. If you configure the same priority value for all the ports
on a device, the specific priority of a port depends on the index number of the port. A lower index
number means a higher priority. Changing the priority of a port triggers a new spanning tree
calculation process.

Configuring the link type of ports

A point-to-point link is a link that directly connects two devices. If the two ports across a point-to-point link
are root ports or designated ports, the ports can rapidly transition to the forwarding state after a
proposal-agreement handshake process.
Make this configuration on the root bridge and on the leaf nodes separately.
Follow these steps to configure the link type of a port or a group of ports:
To do...
Enter system view
Enter interface
view or port
group view
Enter Ethernet interface
view or Layer 2 aggregate
interface view
Enter port group view
Enter Ethernet
interface view or
Layer 2 aggregate
interface view
Enter port group view
Use the command...
system-view
interface interface-type
interface-number
port-group manual
port-group-name
stp [ instance instance-id ]
port priority priority
Use the command...
system-view
interface interface-type
interface-number
port-group manual
port-group-name
70
Remarks
Required
Use either command.
Required
128 for all ports by default.
Remarks
Required
Use either command.

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