From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Tue Feb 15 2005 - 15:04:41 GMT-3
Jeff,
Multilink is not required to use both channels. Multilink is
simply used to optimize the utilization across the links by doing
fragmentation at the PPP layer. By using the "ppp multilink" command
you are essentially telling the router to add an additional segmentation
and reassembly process on the sending and receiving end of the PPP link
respectively.
HTH,
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
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> -----Original Message-----
> From: Golia, Jeff [mailto:JGOLIA@twportanddistribution.com]
> Sent: Tuesday, February 15, 2005 11:55 AM
> To: Brian McGahan; Golia, Jeff; Group Study (E-mail)
> Subject: RE: IEWB-RS Lab 1 ISDN 4.6-7 Multilink config
>
> Brian,
>
> I don't think it's possible to run PPP over 2 B channels without
> multilink.
>
>
>
> -----Original Message-----
> From: Brian McGahan [mailto:bmcgahan@internetworkexpert.com]
> Sent: Tuesday, February 15, 2005 11:28 AM
> To: Golia, Jeff; Group Study (E-mail)
> Subject: RE: IEWB-RS Lab 1 ISDN 4.6-7 Multilink config
>
>
> Jeff,
>
> What is the difference between running PPP over two ISDN B
> channels as opposed to running PPP multilink over two ISDN B channels?
>
> Brian McGahan, CCIE #8593
> bmcgahan@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987 x 705
> Outside US: 775-826-4344 x 705
> 24/7 Support: http://forum.internetworkexpert.com
> Live Chat: http://www.internetworkexpert.com/chat/
>
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > Golia, Jeff
> > Sent: Tuesday, February 15, 2005 7:55 AM
> > To: Group Study (E-mail)
> > Subject: IEWB-RS Lab 1 ISDN 4.6-7 Multilink config
> >
> > Hello, A brief question about multilink configuration.
> >
> > the requirements of this state "maximize throughput on the ISDN
> circuit
> > configure your network so that R4 and R5 fragment all traffic
amongst
> both
> > ISDN B channels. Fragmentation sould occur regardless of the
> utilization
> > of
> > the first B channel."
> >
> > When I first did this lab, I used these commands:
> > ppp multilink interleave
> > ppp multilink load-thresh 1
> >
> > The solution states:
> > ppp multilink
> > ppp multilink links min 2
> >
> >
> > I think my solution is preferable due to the interleave keyword
usage.
> It
> > specifically mentions the fragmentation asked for. I tried using
the
> > interleave keyword on the IE supplied solution, and it makes
multilink
> not
> > come up (1 B channel only). Also when viewing the stats of each
> separate
> > B
> > channel (sh int bri 0 1; sh int bri 0 2) the stats look deceivingly
> > similar.
> >
> >
> > COMMENTS?????
> >
> > Thank you.
> >
> >
> >
> > Jeff Golia, CCNP MCSE
> > Network Administrator
> > Transworld Port and Distribution Services
> > Wilmington, Delaware
> >
> >
>
This archive was generated by hypermail 2.1.4 : Thu Mar 03 2005 - 08:51:21 GMT-3