Re: Frame-Relay question

From: Alsontra Daniels (aldaniels@email.uophx.edu)
Date: Mon Feb 24 2003 - 01:33:45 GMT-3


I thank everyone that responded and I'll try provide the additional
information requested in this email.

First off. The HUB router has three pvcs. Two pvcs on its multi-point subif
and one pvc on its p2p subif. The p2p subif works without an problems and one
of the pvcs on the multipoint subif is working. This is what I don't
understand. LMI is working between the frame switch and the HUB router. I know
this because the p2p pvc and one of the multi-point pvcs becomes active. I
have also used lmi debug to verify that the dlci is exchanged. I've changed
the dlci being used for the broken pvc, with no luck. Given the fact that one
of the two pvcs comes up, I'd say I'm not dealing with a layer 1 or 2 issue.
All interfaces and LMI are up and working.

****The frame switch config is below:
(note- I've changed dlci 120 to 124 in an effort eliminate random mistakes.
The change was made on both the switch and Hub router)

interface Serial0
 description To R2
 no ip address
 no ip directed-broadcast
 encapsulation frame-relay
 clockrate 64000
 frame-relay lmi-type cisco
 frame-relay intf-type dce
 frame-relay route 110 interface Serial1 111
 frame-relay route 124 interface Serial2 121 <-----(all pvcs work except this
one)
 frame-relay route 130 interface Serial3 131

****HUB router config

interface Serial0
 no ip address
 encapsulation frame-relay
 no ip route-cache
 no ip mroute-cache
 frame-relay lmi-type cisco
!
interface Serial0.1 multipoint
 ip address 10.10.1.9 255.255.255.248
 no ip route-cache
 no ip mroute-cache
 frame-relay map ip 10.10.1.10 110 broadcast <--(this pvc works and the
adjacent address is ping-able
 frame-relay map ip 10.10.1.11 124 broadcast
!
interface Serial0.2 point-to-point
 ip address 192.168.1.5 255.255.255.252
 no ip route-cache
 no ip mroute-cache
 frame-relay interface-dlci 130

LMI on frame switch for 124 and 121

DLCI = 124, DLCI USAGE = SWITCHED, PVC STATUS = INACTIVE, INTERFACE = Serial0

  input pkts 7 output pkts 0 in bytes 375
  out bytes 0 dropped pkts 1 in FECN pkts 0
  in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
  in DE pkts 0 out DE pkts 0
  out bcast pkts 0 out bcast bytes 0
  pvc create time 00:24:09, last time pvc status changed 00:23:29
  Num Pkts Switched 0

DLCI = 121, DLCI USAGE = SWITCHED, PVC STATUS = ACTIVE, INTERFACE = Serial2

  input pkts 22 output pkts 0 in bytes 3410
  out bytes 0 dropped pkts 6 in FECN pkts 0
  in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
  in DE pkts 0 out DE pkts 0
  out bcast pkts 0 out bcast bytes 0
  pvc create time 00:11:02, last time pvc status changed 00:01:26
  Num Pkts Switched 0

*****This is spoke that has a problem
Spoke router config-
!
interface Serial0/0
 ip address 10.10.1.11 255.255.255.248
 no ip directed-broadcast
 encapsulation frame-relay
 no ip route-cache
 no ip mroute-cache
 no keepalive
 no fair-queue
 cdp enable
 frame-relay interface-dlci 121

LMI for dlci 121 on spoke
DLCI = 121, DLCI USAGE = LOCAL, PVC STATUS = STATIC, INTERFACE = Serial0/0

  input pkts 0 output pkts 43 in bytes 0
  out bytes 7040 dropped pkts 0 in FECN pkts 0
  in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
  in DE pkts 0 out DE pkts 0
  out bcast pkts 43 out bcast bytes 7040
  pvc create time 00:20:44, last time pvc status changed 00:20:43

One more question, does the frame switch require that both DLCIs referenced in
a frame route command arp-able before it listed dlci as active?

Thanks!

  ----- Original Message -----
  From: Muyeenp@aol.com
  To: aldaniels@email.uophx.edu
  Sent: Sunday, February 23, 2003 7:09 PM
  Subject: Re: Frame-Relay question

  On 10.10.1.11 router, see if the LMI is up in show interface command. On the
same router do a sh fr lmi and check its output to see if update messages sent
and received are incrementing.
  Also, do a sh fr pvc and see if you are receiving any other PVCs other than
120.



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