AIS AI2524 Configure Transparent Bridging over Multiprotocol Lapb, Monitor and Maintain Lapb

Chapter 12: AI2524 X.25 Configuration Steps

Note:	The lapb hold-queuecommand is no longer
	supported, but the same functionality is provided by the
	hold-queuesize out standard queue control
	command.

Configure Transparent Bridging over Multiprotocol LAPB

To configure transparent bridging over multiprotocol LAPB, perform these tasks beginning in global configuration mode:

1.Specify the serial interface, and enter interface configuration mode.

interface serial number

2.Assign no IP address to the interface. no ip address

3.Configure multiprotocol LAPB encapsulation. encapsulation lapb multi

4.Assign the interface to a bridge group. bridge-groupbridge-group

5.Define the type of spanning tree protocol.

bridge bridge-group protocol {ieeedec}

Note:	This feature requires use of the encapsulation lapb
	multi command. You cannot use the encapsulation
	lapb protocol command with a bridge keyword to
	configure this feature.

Monitor and Maintain LAPB and X.25

To monitor and maintain X.25 and LAPB, perform any of these tasks in EXEC mode:

z Clear all virtual circuits at once (everything—encapsulation, rout- ed calls, and PAD calls—is cleared), or clear the single virtual cir- cuit specified.

clear x25-vc type number [lcn]

zDisplay CMNS information. show cmns [type number]

zDisplay operation statistics for an interface. show interfaces serial number

August 1997	Page 12-53
2524UM