From: Tony Schaffran (tschaffran@cconlinelabs.com)
Date: Wed Jun 25 2003 - 09:46:08 GMT-3
With Frame Relay back to back, you need to have the same dlci on both sides.
There is no frame switch to map from one dlci to another.
Tony Schaffran
Network Analyst
CCIE #11071
CCNP, CCNA, CCDA,
NNCDS, NNCSS, CNE, MCSE
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-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Wei
Zou (wzou)
Sent: Wednesday, June 25, 2003 1:39 AM
To: ccielab@groupstudy.com
Subject: Frame Relay back to back
Hi:
I have following topology with Frame relay back to back:
R3-3640 ---304(dlci) ----403(dlci)----R5-4500
I have following configurations:
R3-3640#sh run int s3/0
interface Serial3/0
ip address 1.1.1.1 255.0.0.0
encapsulation frame-relay
clockrate 64000
frame-relay map ip 1.1.1.2 304 broadcast
no frame-relay inverse-arp
frame-relay intf-type dce
end
R4-4500#sh run int s4/0
interface Serial4/0
ip address 1.1.1.2 255.0.0.0
encapsulation frame-relay
frame-relay map ip 1.1.1.1 403 broadcast
no frame-relay inverse-arp
end
Questions:
1) If I don't configure intf-type dce on R3-3640, why the interface and
line protocol will be both down at two routers, do I have to configure one
side as FR switch?
2)with above configuration, why I can not ping each other. R4-4500 "show
frame map" shows 403 pvc deleted. in show frame pvc, R4-4500 shows 304
unused. If I change 403 to 304 which is the same as 304 in R3-3640,
everything works fine. Can not I have two different DLCI in this topology?
Is that because the switch side advertise 304 which get messed up with
static map 403 in the R4-4500?
can somebody share some thoughts here?
Thanks
Wei
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