HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 2 - LAN Switching Co - Page 81
Configuring edge ports, Configuration restrictions and guidelines, Configuration procedure
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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