From: Pal (palsehmi@googlemail.com)
Date: Wed Mar 29 2006 - 14:53:51 GMT-3
Correction -
R3
ML1 - VT1 - Sx.1 PVC 301
ML1 - VT1 - Sx.2 PVC 302
ML2 - VT2 - Sx.1 PVC 303
ML2 - VT2 - Sx.2 PVC 304
On 29/03/06, Pal <palsehmi@googlemail.com> wrote:
>
> Perhaps its a case of VT assignments? If you shutdown the interface on R4
> does the flapping between R3-R5 stop? Does the connectivity between R3 and
> R5 then 'appear' stable?
>
> It maybe worth trying distinct ML interfaces on the hub that have their
> own VT respectively. Each VT is referenced could then be referenced by the
> two serial sub interfaces that carry the traffic to the same router - two
> for R4 and the two for R5.
>
> R3
> ML1 - VT1 - Sx.1 PVC 304
> ML1 - VT1 - Sx.2 PVC 304
> ML2 - VT2 - Sx.1 PVC 304
> ML2 - VT2 - Sx.2 PVC 304
>
> Perhaps also worth noting that there are no issues with repeating IP
> addresses on MLs.
>
> HTH
>
> On 29/03/06, m destienne < mdestienne@yahoo.com> wrote:
> >
> > i see that you have only one virtual template defined
> > but listed twice. and this one is being used by both
> > frame interfaces.
> >
> > is that a typo or should the second virtual template
> > be virtual-template2 and used by the second frame
> > interface..
> >
> > this way, you would have two virtual templates in the
> > mlppp config instead of just one.
> >
> > also, verify that the flapping messages are bogus by
> > checking the serial interfaces when you receive the
> > down messages regarding your mlppp.
> >
> > --- Bill.McKenzie@bisys.com wrote:
> >
> > > IE Core Lab 6:
> > >
> > > configuring PPPoFR with multilink interfaces
> > >
> > > Routers 3 and 4 can communicate no problem. Router
> > > 5's multilink interface
> > > is constantly going up and down. The configuration
> > > (except for interface
> > > number) is the same on all three routers.
> > >
> > > Here is the config on the suspect router (R5)
> > >
> > > interface Serial1/0
> > > no ip address
> > > encapsulation frame-relay
> > > frame-relay lmi-type cisco
> > > !
> > > interface Serial1/0.503 point-to-point
> > > frame-relay interface-dlci 503 ppp
> > > Virtual-Template1
> > > !
> > > interface Serial1/0.513 point-to-point
> > > frame-relay interface-dlci 513 ppp
> > > Virtual-Template1
> > > !
> > >
> > > interface Virtual-Template1
> > > no ip address
> > > ppp multilink
> > > ppp multilink group 1
> > >
> > >
> > > interface Virtual-Template1
> > > no ip address
> > > ppp multilink
> > > ppp multilink group 1
> > > end
> > >
> > > interface Multilink1
> > > ip address 145.1.0.5 255.255.255.0
> > > no cdp enable
> > > ppp multilink
> > > ppp multilink group 1
> > > end
> > >
> > > Has anyone experienced this before?
> > >
> > > TIA,
> > > Bill
> > >
> > >
> > >
> > >
> > >
> > >
> > >
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> --
> Regards
> Pal Sehmi
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