HP 7000 dl Router manual Bridge-group group# link-type auto point-to-point shared

SROS Command Line Interface Reference Guide PPP Interface Configuration Command Set

bridge-group <group#> link-type [auto point-to-point shared]

Use the bridge-grouplink-typecommand to configure the spanning-tree protocol link type for an interface. To return to the default value, use the no form of this command.

Syntax Description

<group#>	Bridge group number (1 to 255) specified using the bridge-groupcommand.
auto	Link type is determined by the port’s duplex settings.
point-to-point	Link type is manually set to point-to-point, regardless of duplex settings.
shared	Link type is manually set to shared, regardless of duplex settings.

Default Values

By default, a port is set to auto.

Command Modes

(config-interface)#	Interface Configuration Mode
	Valid interfaces include: Ethernet (eth 0/1), virtual PPP interfaces (ppp 1), and
	virtual Frame Relay sub-interfaces (fr 1.20)

Functional Notes

This command overrides the default link type setting determined by the duplex of the individual port. By default a port configured for half-duplex is set to shared link type, and a port configured for full-duplex is set to point-to-pointlink type. Setting the link type manually overrides the default and forces the port to use the specified link type. Using the link-type auto command, restore the convention of determining link type based on duplex settings.

Usage Examples

The following example forces the link type to point-to-point, even if the port is configured to be half-duplex:

(config)#bridge 1 protocol ieee (config)#interface ppp 1

(config-ppp1)#bridge-group 1 link-type point-to-point

Technology Review

Rapid transitions are possible in RSTP (rapid spanning-tree protocol) by taking advantage of point-to-point links (a port is connected to exactly one other bridge) and edge-port connections (a port is not connected to any additional bridges). Setting the link-type to auto allows the spanning-tree to automatically configure the link type based on the duplex of the link. Setting the link type to point-to-pointallows a half-duplex link to act as if it were a point-to-point link.

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