Re: PPP multilink over Frame relay

 it also depends on the way question is worded. if they tell do not apply ip
address directly on the virtual interface and do not use ip unnumbered. you
may be left with the option of creating multilink interface

On Wed, Jul 14, 2010 at 6:01 PM, Maarten Vervoorn <mr.vervoorn_at_gmail.com>wrote:

> Hi Tyson,
>
> Thanks for you awnser
> I know that multilink does this. But I'm talking about the differences in
> configuring multilink on a virtual-temp with or without a multilink
> interface. Is the only functionality to create more multilink bundles on a
> router (with a mutlink group and interface) or are there some other
> conceptual differences
>
> !
> interface Virtual-Template1
> ip address 9.9.12.1 255.255.255.0
> fair-queue
> ppp multilink
> ppp multilink interleave
> ppp multilink endpoint none
> ppp multilink fragment delay 9
> !
> =========OR=========
>
> interface Virtual-Template1
> no ip address
> fair-queue
> ppp multilink
> ppp multilink group 1
> !
> interface Multilink1
> ip address 9.9.12.1 255.255.255.0
> fair-queue
> ppp multilink
> ppp multilink interleave
> ppp multilink group 1
> ppp multilink endpoint none
> ppp multilink fragment delay 9
> end
> !
>
> Kind regards,
>
> Maarten Vervoorn
>
>
>
> 2010/7/14 Tyson Scott <tscott_at_ipexpert.com>
>
> > The only time it would be really important is if a question stated you
> > needed to ping your local interface. If that is the case you need the
> > multilink. Beyond that they effectively provide the same functionality.
> >
> > Regards,
> >
> > Tyson Scott - CCIE #13513 R&S, Security, and SP
> > Managing Partner / Sr. Instructor - IPexpert, Inc.
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> > -----Original Message-----
> > From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> > Maarten Vervoorn
> > Sent: Wednesday, July 14, 2010 9:44 AM
> > To: Cisco certification
> > Subject: PPP multilink over Frame relay
> >
> > For PPP multilink over frame relay you can configure it two ways. With a
> > multilink interface or only on the virtual-template. Whats the difference
> > between them? Below are the two configurations'I'm talking about. The
> only
> > difference I can see is that the multilink interface is different
> (virtual
> > access and multilink 1) and the multilink haas one inactive interface
> > (virtual-temp1, is always down). When shall I choose a multilink
> interface
> > and when shall I choose to do the commands on the virtual-template?
> >
> > ==============With Multilink interface================
> > interface Serial1/0
> > encapsulation frame-relay
> > frame-relay traffic-shaping
> > no frame-relay inverse-arp
> > !
> > interface Serial1/0.1 point-to-point
> > snmp trap link-status
> > frame-relay interface-dlci 102 ppp Virtual-Template1
> > !
> > interface Virtual-Template1
> > no ip address
> > ppp multilink
> > ppp multilink group 1
> > !
> > interface Multilink1
> > ip unnumbered Loopback1
> > fair-queue 64 256 0
> > ppp multilink
> > ppp multilink interleave
> > ppp multilink group 1
> > !
> >
> > I can see the virtual-temp is inactive (its always down so its correct
> >
> > R1#sh ppp mul
> > Multilink1
> > Bundle name: R2
> > Remote Endpoint Discriminator: [1] R2
> > Local Endpoint Discriminator: [1] R1
> > Bundle up for 00:00:21, total bandwidth 28, load 1/255
> > Receive buffer limit 12000 bytes, frag timeout 3428 ms
> > Interleaving enabled
> > 0/0 fragments/bytes in reassembly list
> > 0 lost fragments, 0 reordered
> > 0/0 discarded fragments/bytes, 0 lost received
> > 0x2 received sequence, 0x3 sent sequence
> > Member links: 1 active, 1 inactive (max not set, min not set)
> > Vi1, since 00:00:21, 105 weight, 95 frag size
> > Vt1 (inactive)
> > No inactive multilink interfaces
> >
> >
> > ==============Only virtual-template interface================
> > !
> > interface Serial1/0
> > encapsulation frame-relay
> > frame-relay traffic-shaping
> > no frame-relay inverse-arp
> > !
> > interface Serial1/0.1 point-to-point
> > snmp trap link-status
> > frame-relay interface-dlci 201 ppp Virtual-Template1
> > !
> > interface Virtual-Template1
> > ip unnumbered Loopback1
> > fair-queue
> > ppp multilink
> > ppp multilink interleave
> > !
> >
> > R2#sh ppp mul
> > Virtual-Access4
> > Bundle name: R1
> > Remote Endpoint Discriminator: [1] R1
> > Local Endpoint Discriminator: [1] R2
> > Bundle up for 00:02:27, total bandwidth 28, load 1/255
> > Receive buffer limit 12192 bytes, frag timeout 3483 ms
> > Interleaving enabled
> > 0/0 fragments/bytes in reassembly list
> > 0 lost fragments, 0 reordered
> > 0/0 discarded fragments/bytes, 0 lost received
> > 0x3 received sequence, 0x2 sent sequence
> > Member links: 1 (max not set, min not set)
> > Vi1, since 00:02:27, 105 weight, 95 frag size
> > No inactive multilink interfaces
> > ===========================================================
> >
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Received on Wed Jul 14 2010 - 19:16:06 ART