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Beginner

Fully meshed Frame Relay with packet tracer (trouble with one of the links)

   Hi.

    I'm trying to create a fully meshed frame-relay wan with packet tracer using 3 routers.One of the routers (named Congo , don't ask me why) can ping      between the other two but the other two cannot ping eachother.There's a connection between Congo-Madagascar and Congo-Cuba but no connection between Madagascar-Cuba.

  I've attached a PT file.I would appreciate any assistance.Thanks

14 REPLIES 14
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Hi,

Could you paste the related config from all three devices?

Is there a layer 2 to layer 3 mapping to all destinations or are you running a routing protocol over it?

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Hi.There's Just the three routers.The only configuration on each one Is:

Int s0/0/0

encapsulation frame-relay

ip address  . . . . subnet mask . . . .

I haven't mapped the DLCI's on each router.I've entered them In the frame relay cloud and mapped them there.All three routers have learned their local DLCI's.

I've attached the configs for each router.

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Can you post "show frame-relay map" and "show frame-relay pvc"?

HTH,

John

HTH, John *** Please rate all useful posts ***
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Hi.Here they are:

Cuba#sh frame-relay map

Serial0/0/0 (administratively down): ip 192.168.1.2 dlci 51, dynamic, broadcast, CISCO, status deleted

Serial0/0/0 (up): ip 192.168.1.3 dlci 53, dynamic, broadcast, CISCO, status defined, active

Cuba#sh frame-relay pvc

PVC Statistics for interface Serial0/0/0 (Frame Relay DTE)
DLCI = 52, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0

input pkts 14055       output pkts 32795        in bytes 1096228
out bytes 6216155      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 32795   out bcast bytes 6216155

DLCI = 53, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0

input pkts 14055       output pkts 32795        in bytes 1096228
out bytes 6216155      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 32795   out bcast bytes 6216155

Congo#sh frame-relay map
Serial0/0/0 (up): ip 192.168.1.1 dlci 51, dynamic, broadcast, CISCO, status defined, active
Serial0/0/0 (up): ip 192.168.1.2 dlci 52, dynamic, broadcast, CISCO, status defined, active

Congo#sh frame-relay pvc

PVC Statistics for interface Serial0/0/0 (Frame Relay DTE)
DLCI = 51, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0

input pkts 14055       output pkts 32795        in bytes 1096228
out bytes 6216155      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 32795   out bcast bytes 6216155

DLCI = 52, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0

input pkts 14055       output pkts 32795        in bytes 1096228
out bytes 6216155      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 32795   out bcast bytes 6216155

Madagascar#sh frame-relay map
Serial0/0/0 (administratively down): ip 192.168.1.1 dlci 52, dynamic, broadcast, CISCO, status deleted
Serial0/0/0 (up): ip 192.168.1.3 dlci 53, dynamic, broadcast, CISCO, status defined, active

Madagascar#sh frame-relay pvc

PVC Statistics for interface Serial0/0/0 (Frame Relay DTE)
DLCI = 51, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0

input pkts 14055       output pkts 32795        in bytes 1096228
out bytes 6216155      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 32795   out bcast bytes 6216155

DLCI = 53, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0

input pkts 14055       output pkts 32795        in bytes 1096228
out bytes 6216155      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 32795   out bcast bytes 6216155

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Madagascar is trying to map dlci 52 to Cuba and Cuba is trying to map dlci 51. On Madagascar, the dlcis that it's learning are 51 and 53. 53 is up and is mapped to Congo. On Congo, 52 is mapped to Madagascar, so I'm assuming that you have a dlci mapping of 52 ---> 53 on the frame relay switch and you have 51 --> 53 on the port that Congo is connected to. You'd need to have the same thing for Madagascar and Cuba. You should have a mapping on the Madagascar port for 52 --> 51 on Cuba port.

HTH, John *** Please rate all useful posts ***
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It appears to be how I have It setup In the frame-relay cloud but It's only working for Congo connections.

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Can you run "debug frame-relay packet" on Cuba and shut down the interface and bring it back up? Post the results here and we can take a look at it. You may also try "debug frame-relay events" also.

HTH, John *** Please rate all useful posts ***
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I already tried running the debug but the only command available on PT Is debug frame-relay lmi.

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Hi,

Could you copy paste the following outputs directly in here?

Hub:

Sh run int (main interface)

sh run int (multipoint interface) if no multipoint than both P2P

sh frame lmi

Spokes:

Sh run int (main interface)

sh run (subinterface)

sh frame lmi

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Madagascar#

Madagascar#sh frame lmi

LMI Statistics for interface Serial0/0/0 (Frame Relay DTE) LMI TYPE = CISCO

Invalid Unnumbered info 0      Invalid Prot Disc 0

Invalid dummy Call Ref 0       Invalid Msg Type 0

Invalid Status Message 0       Invalid Lock Shift 0

Invalid Information ID 0       Invalid Report IE Len 0

Invalid Report Request 0       Invalid Keep IE Len 0

Num Status Enq. Sent 3773      Num Status msgs Rcvd 3772

Num Update Status Rcvd 0       Num Status Timeouts 16

sh frame lmi

LMI Statistics for interface Serial0/0/0 (Frame Relay DTE) LMI TYPE = CISCO

Invalid Unnumbered info 0      Invalid Prot Disc 0

Invalid dummy Call Ref 0       Invalid Msg Type 0

Invalid Status Message 0       Invalid Lock Shift 0

Invalid Information ID 0       Invalid Report IE Len 0

Invalid Report Request 0       Invalid Keep IE Len 0

Num Status Enq. Sent 698       Num Status msgs Rcvd 697

Num Update Status Rcvd 0       Num Status Timeouts 16

LMI Statistics for interface Serial0/0/0 (Frame Relay DTE) LMI TYPE = CISCO

Invalid Unnumbered info 0      Invalid Prot Disc 0

Invalid dummy Call Ref 0       Invalid Msg Type 0

Invalid Status Message 0       Invalid Lock Shift 0

Invalid Information ID 0       Invalid Report IE Len 0

Invalid Report Request 0       Invalid Keep IE Len 0

Num Status Enq. Sent 3813      Num Status msgs Rcvd 3812

Num Update Status Rcvd 0       Num Status Timeouts 16

interface Serial0/0/0

ip address 192.168.1.1 255.255.255.0

encapsulation frame-relay

interface Serial0/0/0
ip address 192.168.1.1 255.255.255.0
encapsulation frame-relay

Madagascar#
Madagascar#sh frame lmi
LMI Statistics for interface Serial0/0/0 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0      Invalid Prot Disc 0
Invalid dummy Call Ref 0       Invalid Msg Type 0
Invalid Status Message 0       Invalid Lock Shift 0
Invalid Information ID 0       Invalid Report IE Len 0
Invalid Report Request 0       Invalid Keep IE Len 0
Num Status Enq. Sent 3773      Num Status msgs Rcvd 3772
Num Update Status Rcvd 0       Num Status Timeouts 16

Cuba#sh frame lmi
LMI Statistics for interface Serial0/0/0 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0      Invalid Prot Disc 0
Invalid dummy Call Ref 0       Invalid Msg Type 0
Invalid Status Message 0       Invalid Lock Shift 0
Invalid Information ID 0       Invalid Report IE Len 0
Invalid Report Request 0       Invalid Keep IE Len 0
Num Status Enq. Sent 698       Num Status msgs Rcvd 697
Num Update Status Rcvd 0       Num Status Timeouts 16

Congo#sh frame lmi

LMI Statistics for interface Serial0/0/0 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0      Invalid Prot Disc 0
Invalid dummy Call Ref 0       Invalid Msg Type 0
Invalid Status Message 0       Invalid Lock Shift 0
Invalid Information ID 0       Invalid Report IE Len 0
Invalid Report Request 0       Invalid Keep IE Len 0
Num Status Enq. Sent 3813      Num Status msgs Rcvd 3812
Num Update Status Rcvd 0       Num Status Timeouts 16

interface Serial0/0/0
ip address 192.168.1.1 255.255.255.0
encapsulation frame-relay

the running config s0/0/0 Is the same for all routers.Ending with 1.2 for Madag.  and 1.3 for Congo.

I don't have a hub and spoke.It's fully meshed with no subinterfaces.There all on the same subnet.

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I still think it has something to do with the switch and not your routers. I don't have access to Packettracer. Do you have an applet that acts as a FR switch or do you have to configure a router as a switch in order to get this to work. In other words, can you post a config of your switch?

HTH, John *** Please rate all useful posts ***
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There's a cloud that emulates a wan.It's a switch basically with the option of frame relay Included along with dsl or cable.

  There's no cli but there are options fro assigning DLCI's to serial Interfaces and linking them between routers.

I've assigned DLCI's: 52 and 53 (serial 0 connected to router Cuba)

                              51 and 52 (serial 1 connected to router Congo)

                              51 and 53 (serial 2 connected to router Madagascar)

I then linked: DLCI 51 to DLCI 53 for Congo-Cuba

                    DLCI 51 to DLCI 52 for Mada-Cuba

                    DLCI 52 to DLCI 53 for Mada-Congo

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Hi,

All the pings are working for me.

Regards.

Alain.

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.
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Hi.I never thought to check It again after I closed PT.It's working for me now too.Maybe some glitch.

  Thanks for taking a look

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