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New Member

PPP Multilink question and suggestion

Hello,

I'm configuring the PPP Multilink of 3 E1 channel in Cisco router(75xx, 72xx). I search there and I found few methods to confiugre multilink. May I ask what is the different between these methods?

1. Multilink group

2. virtual-template

3. Dialer group

This is my understanding of different between these three methods:

- Only one multilink channel is allowed in Virtual-template method;

- Dialer group is the old method, for ISDN interface;

- Multilink group is the new method only sync/serial interface.

BTW, Which is most suitable for my case?

Thank you very much.

Bennith

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Re: PPP Multilink question and suggestion

Here is the url for sample config on how to bundle dedicated lines using "multilink group" for your ref.

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/10ksw/mlppos.htm

3 REPLIES
Cisco Employee

Re: PPP Multilink question and suggestion

Most effective method will be using "virtual-template". You can ad sam many channels in the bundle using "ppp multilink" under "interface virtual-template x" and under physical interface. So there is no restriction of just one channel is allowed using Virtual-template.

Dialer-group is really old method..i agree..

Now multilink-group is used when you want to multilink or bundle more then one "Leased" line or "dedicated" Line (which is not channelized).

So whenever you want to bundle/multilink more then one b channels of channelized T1/E1 line, use "virtual-template". Also you need to use that when you have some per user bases authorization attributes to be downloaded from AAA to router.

You can visit following for more

http://www.cisco.com/univercd/cc/td/doc/product/software/ios113ed/113ed_cr/dial_c/dcprt7/dcvprof.htm

New Member

Re: PPP Multilink question and suggestion

Hello,

Thanks a lot! I got clear now. Finally we would apply the Multilink group method because threre are three "dedicated" E1 link (three physical line).

Bennith.

Cisco Employee

Re: PPP Multilink question and suggestion

Here is the url for sample config on how to bundle dedicated lines using "multilink group" for your ref.

http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/10ksw/mlppos.htm

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