Comments on: Tutorial: How to set up backup interfaces http://ardenpackeer.com/ios-features-management/tutorial-how-to-set-up-backup-interfaces/ Helping You Become a Network Ninja Tue, 09 Mar 2010 02:21:31 -0700 http://wordpress.org/?v=2.8.4 hourly 1 By: Usha http://ardenpackeer.com/ios-features-management/tutorial-how-to-set-up-backup-interfaces/comment-page-1/#comment-11917 Usha Thu, 09 Jul 2009 10:25:50 +0000 http://ardenpackeer.com/ios-features-management/tutorial-how-to-set-up-backup-interfaces/#comment-11917 Hi, can we configure 'backup interface' command under the main interface itself? As of now, you have applied on the sub-interface(ser1/0.12) right. I'm trying the scenario now, it shows: *Mar 1 02:54:21.891: BACKUP(Serial1/0): event = primary interface went down *Mar 1 02:54:21.891: BACKUP(Serial1/0): backup is currently disabled on this interface (config-if)#do show backup Primary Interface Secondary Interface Status ----------------- ------------------- ------ Serial1/0 Serial1/1 disabled it works perfeclty fine, if I configure under the sub-interface! Thanks in advance. Regards, Usha Hi,
can we configure ‘backup interface’ command under the main interface itself?

As of now, you have applied on the sub-interface(ser1/0.12) right.

I’m trying the scenario now, it shows:

*Mar 1 02:54:21.891: BACKUP(Serial1/0): event = primary interface went down
*Mar 1 02:54:21.891: BACKUP(Serial1/0): backup is currently disabled on this interface

(config-if)#do show backup
Primary Interface Secondary Interface Status
—————– ——————- ——
Serial1/0 Serial1/1 disabled

it works perfeclty fine, if I configure under the sub-interface!

Thanks in advance.

Regards,
Usha

]]> By: Arden Packeer http://ardenpackeer.com/ios-features-management/tutorial-how-to-set-up-backup-interfaces/comment-page-1/#comment-597 Arden Packeer Fri, 25 Apr 2008 04:25:35 +0000 http://ardenpackeer.com/ios-features-management/tutorial-how-to-set-up-backup-interfaces/#comment-597 @richard: It only works on a point-to-point connection because there is only one dlci to track. Think of it this way, if one dlci went down it wouldn't take the whole interface down. @richard: It only works on a point-to-point connection because there is only one dlci to track. Think of it this way, if one dlci went down it wouldn’t take the whole interface down.

]]> By: michash http://ardenpackeer.com/ios-features-management/tutorial-how-to-set-up-backup-interfaces/comment-page-1/#comment-447 michash Wed, 02 Apr 2008 16:52:49 +0000 http://ardenpackeer.com/ios-features-management/tutorial-how-to-set-up-backup-interfaces/#comment-447 great stuff. had it working nicely. thanks for sharing great stuff.
had it working nicely.
thanks for sharing

]]> By: Mark http://ardenpackeer.com/ios-features-management/tutorial-how-to-set-up-backup-interfaces/comment-page-1/#comment-197 Mark Wed, 12 Mar 2008 09:37:07 +0000 http://ardenpackeer.com/ios-features-management/tutorial-how-to-set-up-backup-interfaces/#comment-197 Hi Arden, Another use of the backup interface is for a router (or more likely - voice gateways) with multiple ethernet interfaces. Utilising backup interface across the two ethernets effective provides the equivelant of server network teaming. This is useful where you don't want to run a routing protocol on the device (particularly voice gateways!). Great article. Regards, Mark. Hi Arden,

Another use of the backup interface is for a router (or more likely – voice gateways) with multiple ethernet interfaces. Utilising backup interface across the two ethernets effective provides the equivelant of server network teaming. This is useful where you don’t want to run a routing protocol on the device (particularly voice gateways!).

Great article.

Regards,

Mark.

]]> By: richard http://ardenpackeer.com/ios-features-management/tutorial-how-to-set-up-backup-interfaces/comment-page-1/#comment-55 richard Sat, 23 Feb 2008 07:14:39 +0000 http://ardenpackeer.com/ios-features-management/tutorial-how-to-set-up-backup-interfaces/#comment-55 Hi Arden I found this a usefull demo on the backup interface command - thanks. FYI i labbed this up and initially i could not get the backup interface to kick in. Once the primary interface s1/0 was shut i issued a show ip int brief on s1/1 and it showed 'standby mode/disabled'!!! After some head scratching i realised i had the frame relay interfaces defined as the default 'point-to-multipoint'. Once changed to point-to-point everything worked fine. So it would seem this functionality does require a p-2-p connection. Regards Richard Hi Arden
I found this a usefull demo on the backup interface command – thanks.

FYI i labbed this up and initially i could not get the backup interface to kick in. Once the primary interface s1/0 was shut i issued a show ip int brief on s1/1 and it showed ’standby mode/disabled’!!!

After some head scratching i realised i had the frame relay interfaces defined as the default ‘point-to-multipoint’. Once changed to point-to-point everything worked fine. So it would seem this functionality does require a p-2-p connection.
Regards
Richard

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