HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 2 - LAN Switching Co - Page 81

Configuring edge ports, Configuration restrictions and guidelines, Configuration procedure

Page 81 highlights

Step 1. Enter system view. Command system-view Remarks N/A 2. Enter Layer 2 Ethernet interface view or Layer 2 aggregate interface view . interface interface-type interface-number N/A 3. Configure the maximum rate of the ports. stp transmit-limit limit 10 by default. 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 manually configure the port as an edge port. After that, the port can transition rapidly from the blocked state to the forwarding state. Configuration restrictions and guidelines • 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. Configuration procedure To specify a port as edge port: Step 1. Enter system view. Command system-view Remarks N/A 2. Enter Layer 2 Ethernet interface view or Layer 2 aggregate interface view. interface interface-type interface-number N/A 3. Configure the current ports as edge ports. stp edged-port enable All ports are non-edge ports by default. 72

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72
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view .
interface
interface-type interface-number
N/A
3.
Configure the maximum rate
of the ports.
stp transmit-limit
limit
10 by default.
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 manually configure the port as an edge port. After that, the port can transition rapidly
from the blocked state to the forwarding state.
Configuration restrictions and guidelines
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.
Configuration procedure
To specify a port as edge port:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view.
interface
interface-type interface-number
N/A
3.
Configure the current ports as
edge ports.
stp
edged-port enable
All ports are non-edge ports
by default.