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Multiple ISDN Lines

I am wanting to use DDR with BRI lines as backups for our MPLS network.

Our main office router has 6 BRI lines attached to the router.

Is it possible to configure a single dialer on the remote router with the phone numbers for each of these 6 lines so if the first one is busy it will try the next and the next until it gets through?

Denny

1 ACCEPTED SOLUTION

Accepted Solutions
Silver

Re: Multiple ISDN Lines

Hi Denny ,

Yes , you cn use dialer interfce for accessing these 6 lines...Below is the exapmple.

config the following on remote end.

config)#usernme xxxx password xxxx

interfce bri x

no ip address xxxxx

dilaer pool-member 1

isdn switch-type xxxx

ppp authenticantion chap

ppp chap password xxxx

ppp multilink

int di0

ip address xxxx

dilaer-group 1

diler srting xxxx

dialer string xxx

dialer string xxxx

dialer string xxxx

dialer string xxx

dialer string xxxx

dialer string xxxx

dialer pool 1

dailer load-threshold 1 either

ppp authentication chap

diler remote-name xxxx

ppp chap password xxx

ppp multilink

config)# diler-list 1 protocol ip permit.

I hope it helps you.

plz rate it..

thanks,

satish

3 REPLIES
Silver

Re: Multiple ISDN Lines

Hi Denny ,

Yes , you cn use dialer interfce for accessing these 6 lines...Below is the exapmple.

config the following on remote end.

config)#usernme xxxx password xxxx

interfce bri x

no ip address xxxxx

dilaer pool-member 1

isdn switch-type xxxx

ppp authenticantion chap

ppp chap password xxxx

ppp multilink

int di0

ip address xxxx

dilaer-group 1

diler srting xxxx

dialer string xxx

dialer string xxxx

dialer string xxxx

dialer string xxx

dialer string xxxx

dialer string xxxx

dialer pool 1

dailer load-threshold 1 either

ppp authentication chap

diler remote-name xxxx

ppp chap password xxx

ppp multilink

config)# diler-list 1 protocol ip permit.

I hope it helps you.

plz rate it..

thanks,

satish

Re: Multiple ISDN Lines

Hi ,

Just wanted to add to satish message , if you require all the channels to be used ,eventhough you have less traffic , then you can use " dailer load-threshold 1 either " or else based on the traffic only means , you can set a high value , ie if your 60% of first channel is full then activate the second channel and ...

"dailer load-threshold 150 either "

Hope it helps.

regards

vanesh k

New Member

Re: Multiple ISDN Lines

Hello,

Thank you for the quick reply. This was exactly what I was looking for.

Currently I am using the host side to perform DDR, but since general traffic doesn't originate from the host side, we were relying on our NetworkMonitoring software polling the remotes to generate interesting traffic to bring the link up.

Well, I'm off to reconfigure 21 remote sites.

Thank you again,

Denny

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