From: Mohammad Saeed (mzsaeed@gmail.com)
Date: Thu May 24 2007 - 14:23:50 ART
Correct, line protocol UP shows that your router is still able to talk
to FR Switch using LMI. This is where comes the concept of end-to-end
keepalive, if you want to monitor that if using your FR interface, are
you able to reach the destination or not. now, if you will use
end-to-end keepalive on physical interface suppose Serial0/1 and you
are using it to monitor the interface for backup purpose like backup
interface serial 0/0, now if end-to-end keepalives fail, S0/1 can not
go down, but if you use S0/1.1, then it can go down and S0/0 will come
up to be used as backup.....Please correct me if I am wrong......
Regards,
Mohammad Zahed Saeed
On 5/24/07, Edison Ortiz <edisonmortiz@gmail.com> wrote:
> The interface is still receiving LMIs from the frame-relay switch.
> If you want the interface to be down, you must remove the encapsulation
> frame-relay
> from the interface.
> __
>
> Edison Ortiz
> (Routing & Switching, CCIE # 17943)
>
>
>
> ----- Original Message -----
> From: "Ovidiu Neghina" <o.neghina@gmail.com>
> To: "Cisco certification" <ccielab@groupstudy.com>
> Sent: Thursday, May 24, 2007 3:53 AM
> Subject: frame-relay physical interface status
>
>
> > Hi dear all,
> > What is the correct behaviour...I have a serial interface on a router that
> > is still up even if all the dlci are inactive.
> > Should't the line protocol be down ?
> >
> > R1#sh int ser 0/1/0
> > Serial0/1/0 is up, line protocol is up
> > Hardware is GT96K Serial
> > Internet address is 155.1.0.1/24
> > MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
> > reliability 255/255, txload 1/255, rxload 1/255
> > Encapsulation FRAME-RELAY, loopback not set
> >
> >
> > R1#sh fram pvc | i Serial
> > PVC Statistics for interface Serial0/1/0 (Frame Relay DTE)
> > DLCI = 102, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE =
> > Serial0/1/0
> > DLCI = 103, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE =
> > Serial0/1/0
> > DLCI = 104, DLCI USAGE = LOCAL, PVC STATUS = INACTIVE, INTERFACE =
> > Serial0/1/0
> > DLCI = 105, DLCI USAGE = LOCAL, PVC STATUS = INACTIVE, INTERFACE =
> > Serial0/1/0
> > DLCI = 113, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE =
> > Serial0/1/0
> > R1#
> >
> > Thank you
> > Ovidiu
> >
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