Configuring The Maximum Port Rate; Configuring Edge Ports - HP A5830 Configuration Manual

To configure the timeout factor:
Step...
1. Enter system view
2. Configure the timeout factor of the device

Configuring the maximum port rate

The maximum rate of a port refers to the maximum number of BPDUs the port can send within each hello
time. The maximum rate of a port is related to the physical status of the port and the network structure.
To configure the maximum rate of a port or a group of ports:
Step...
1. Enter system view
2. Enter
interface
view or
port
group
view
3. Configure the maximum rate of the
ports
The higher the maximum port rate is, the more BPDUs are sent within each hello time, and the more
system resources are used. By setting an appropriate maximum port rate, limit the rate at which the port
sends BPDUs and prevent spanning tree protocols from using excessive network resources when the
network becomes unstable. HP recommends you use the default setting.

Configuring edge ports

If a port directly connects to a user terminal rather than another device or a shared LAN segment, this
port is regarded as an edge port. When network topology change occurs, an edge port will not cause a
temporary loop. Because a device does not determine whether a port is directly connected to a terminal,
you must configure the port manually as an edge port. After that, the port can transition rapidly from the
blocked state to the forwarding state.
If BPDU guard is disabled, a port set as an edge port will become a non-edge port again if it receives a
BPDU from another port. To restore the edge port, re-enable it.
If a port directly connects to a user terminal, configure it as an edge port and enable BPDU guard for it.
This enables the port to transition to the forwarding state quickly while ensuring network security.
You cannot configure edge port settings and loop guard on a port at the same time.
To specify a port or a group of ports as edge port or ports:
Step...
1. Enter system view
Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view
Enter port group view
Command...
system-view
stp timer-factor factor
Command...
system-view
interface interface-type
interface-number
port-group manual port-group-
name
stp transmit-limit limit
Command... Remarks
system-view —
69
Remarks
—
Required
3 by default
Remarks
—
Required
Use either command
Required
10 by default