Frame-Relay - Multipoint

Frame-Relay - Multipoint

In this post I'll detail the configuration used to set up frame-relay in a multipoint configuration for the lab shown in the diagram below.






R0

R0(config)#interface serial 0/0
R0(config-if)#ip address 192.168.1.1 255.255.255.0
R0(config-if)#encapsulation frame-relay
R0(config-if)#no shut

R0(config-if)#frame-relay map ip 192.168.1.2 100 broadcast
R0(config-if)#frame-relay map ip 192.168.1.3 101 broadcast
R0(config-if)#end


R1

R1(config)#interface serial 0/0
R1(config-if)#ip address 192.168.1.2 255.255.255.0
R1(config-if)#encapsulation frame-relay
R1(config-if)#no shut

R1(config-if)#frame-relay map ip 192.168.1.1 200 broadcast
R1(config-if)#frame-relay map ip 192.168.1.3 200 broadcast
R1(config-if)#end


R2

R2(config)#interface serial 0/0
R2(config-if)#ip address 192.168.1.3 255.255.255.0
R2(config-if)#encapsulation frame-relay
R2(config-if)#no shut
R2(config-if)#exit

R2(config)#interface serial 0/0
R2(config-if)#frame-relay map ip 192.168.1.1 300 broadcast
R2(config-if)#frame-relay map ip 192.168.1.2 300 broadcast
R2(config-if)#end



Show Commands

R2#show frame-relay lmi

LMI Statistics for interface Serial0/0 (Frame Relay DTE) LMI TYPE = ANSI
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 168 Num Status msgs Rcvd 80
Num Update Status Rcvd 0 Num Status Timeouts 89
Last Full Status Req 00:00:04 Last Full Status Rcvd 00:00:04


R2#show frame-relay map
Serial0/0 (up): ip 192.168.1.1 dlci 300(0x12C,0x48C0), static,
broadcast,
CISCO, status defined, active
Serial0/0 (up): ip 192.168.1.2 dlci 300(0x12C,0x48C0), static,
broadcast,
CISCO, status defined, active



Debug Commands

R2#debug frame-relay lmi interface serial 0/0
Frame Relay LMI debugging is on
Displaying lmi data from interface Serial0/0 only
*Mar 1 00:58:02.583: Serial0/0(out): StEnq, myseq 100, yourseen 97, DTE up
*Mar 1 00:58:02.587: datagramstart = 0x7A019D4, datagramsize = 14
*Mar 1 00:58:02.587: FR encap = 0x00010308
*Mar 1 00:58:02.587: 00 75 95 01 01 01 03 02 64 61
*Mar 1 00:58:02.595:
*Mar 1 00:58:02.607: Serial0/0(in): Status, myseq 100, pak size 14
*Mar 1 00:58:02.607: RT IE 1, length 1, type 1
*Mar 1 00:58:02.607: KA IE 3, length 2, yourseq 98, myseq 100