05-08-2009 05:25 PM - edited 03-04-2019 04:42 AM
I was trying to help out another poster on this fourm, and was blaming Packet Tracer. I plugged his configs into two 2600's, but still cant get it working. But get I mean to simply ping the local ints and also directly connected int. I change encap to hdlc, can ping, so I know its not a layer 1 issue.
Can you setup to routers to pass traffic over Frame-Relay w/o specifically assinging one of them as a frame-relay switching?
RtrA-------serial connection-------dce-RtrB
Router A:
interface Serial0/1
ip address 172.16.0.9 255.255.255.252
encapsulation frame-relay
no keepalive
frame-relay map ip 172.16.0.9 103
frame-relay map ip 172.16.0.10 103 broadcast
no frame-relay inverse-arp
!
Router B:
interface Serial0/0
ip address 172.16.0.10 255.255.255.252
encapsulation frame-relay
no keepalive
no fair-queue
clock rate 64000
frame-relay map ip 172.16.0.9 301 broadcast
frame-relay map ip 172.16.0.10 301
no frame-relay inverse-arp
end
!
I tried using debug for frame-relay but its not showing me awhole lot.
I can post more info necessary.
Thank you
Jimmy
Solved! Go to Solution.
05-08-2009 09:40 PM
Hello Jimmy,
back to back FR can be done in two ways:
a)
disabling keepalives
b)
making one side FR DCE as explained by Paolo
in any case if there is a direct cable between the two routers the DLCI cannot change at the two ends!
There is no FR switch/device in the middle so the DLCI must be the same.
I've explained this also in the other thread.
Hope to help
Giuseppe
05-08-2009 05:34 PM
On side (customarily dce, but does not need to),configure frame-relay intf-type dce.
You can then re-enable keepalives.
05-08-2009 05:45 PM
Thank you for your response, tried both of them. Didnt help.....
R3(config-if)#frame-relay intf-type dce
Must enable frame-relay switching to configure DCE/NNI
R3(config-if)#
As far as the keepalives (both sides), when I did that, protocol went down.
R3(config-if)#keepalive
R3(config-if)#
*Mar 2 21:50:03.247: FR-ADJ: dlci 301: 172.16.0.10: removing adjacency
*Mar 2 21:50:03.247: FR-ADJ: dlci 301: 172.16.0.9: removing adjacency
*Mar 2 21:50:04.247: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to down
05-08-2009 05:56 PM
As the router says, configure frame-realy switching first.
05-08-2009 09:40 PM
Hello Jimmy,
back to back FR can be done in two ways:
a)
disabling keepalives
b)
making one side FR DCE as explained by Paolo
in any case if there is a direct cable between the two routers the DLCI cannot change at the two ends!
There is no FR switch/device in the middle so the DLCI must be the same.
I've explained this also in the other thread.
Hope to help
Giuseppe
05-09-2009 09:18 AM
You are 110% correct. I took out frame-relay switching, removed the inft dce statement, map'd to the same DLCI's, and it worked....thank you.
I appreciate your posting on this topic and all the other ones you regularly contribute too.
Jimmy
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