On 10/6/2010 7:58 AM, RAZAFINDRATSIFA Rivo Tahina wrote: > Hi all, > > I'm using a 7200-G2 with the the following: > > Software: IOS Version c7200p-adventerprisek9-mz.124-15.T6.bin > > 3 Packet over SONET interfaces > NAME: "module 1", DESCR: "POS Port Adapter (SM)" > PID: PA-POS-OC3SMI= , VID: N/A, SN: 25403598 > (Interface POS1/0 > Hardware is Packet over Sonet) > > > I'm running BGP with this box. > During test performed by the provider, they did physical loopback on > interfaces, that causes the box to crash, is there an option the > interface down when loop is detected? > > Regards. > _______________________________________________
I believe the command you want is 'down-when-looped': down-when-looped To configure an interface to inform the system it is down when loopback is detected, use the down-when-looped interface configuration command. down-when-looped Syntax Description This command has no arguments or keywords. Defaults Disabled Command Modes Interface configuration Command History Release Modification 10.0 This command was introduced. Usage Guidelines This command is valid for HDLC or PPP encapsulation on serial and HSSI interfaces. There is not a no form of this command. Backup Interfaces When an interface has a backup interface configured, it is often desirable that the backup interface be enabled when the primary interface is either down or in loopback. By default, the backup is only enabled if the primary interface is down. By using the down-when-looped command, the backup interface will also be enabled if the primary interface is in loopback. Testing an Interface with the Loopback Command If testing an interface with the loopback command, or by placing the DCE into loopback, down-when-looped should not be configured; otherwise, packets will not be transmitted out the interface that is being tested. Examples The following example configures interface serial 0 for HDLC encapsulation. It is then configured to let the system know that it is down when in loopback mode. Router(config)# interface serial0 Router(config-if)# encapsulation hdlc Router(config-if)# down-when-looped _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
