Conference kernel::cisco

505.0. "frame relay switching?" by SNOFS1::63496::CHIUANDREW () Thu Apr 17 1997 11:32

Hi, questions on cisco router frame relay switching:

In the below configuration, customer would like to use the Router network
between SITE1 and SITE3 (connected via ROUTER1 and ROUTER3) so that
async/sync device on FRAD3 and talk to devices on FRAD1 as well
to devices on FRAD2 (in SITE2). Is it doable?

I think we can turn on frame relay switching on at ROUTER1 and ROUTER3 
with tunnel since we have to have PVCs bewteen FRAD1, FRAD2 and FRAD3, 
How to config ROUTER1 so that it can 'switch' from FRAD2 to FRAD3 (because 
FRAD2 connected to a real Frame relay network and ROUTER1, but FRAD3 is 
connected ROUTER3 to ROUTER1 via E1, so this is my question)?

2) Does the IP tunnel/frame relay switching provide 'virtual' connections
between async devices on FRAD3 and FRAD1?


Thanks in advance for help!
Andrew Chiu - NSIS Sydney
**************************************************************************



       SITE1						SITE3
	----------					----------
	!         !					!         !
	!         !		E1 (2Mbps)		!         !
 	! ROUTER1 !		IP/Bridging		! ROUTER3 !
	!         !-------------------------------------!	  !
	----------					-----------
	   !DTE 					     ! DCE 
	   !						     !
	   !						     ! DTE DLCI#301
	   !						!---------!	
  	   !						!	  !
	   !	 					! FRAD3   !
	   !		------------------		!	  !
	   ! 		|		 |		-----------
	   !------------|  Frame-Relay	 |		    |||
	  DLCI# 100	|     cloud	 |   		    |||YZ
			|  -----------	 |		Asyn/sync connections	
			|  |         |	 |
			|  |	     |	 |
			------------------
		       DCE |	     | DCE
		DLCI #101  |         | DLCI #201
		           |	     | 
			   /         \
                          /           \
                         /             \
                        /               \   
                  DTE  /                 \  DTE
		---------  		---------
		|       |		|  	|
		| FRAD1	|               | FRAD2 |
		|       |		|       |
		---------               ---------
         	   |||			    ||| 	
      		   |||XY		    |||XZ
	async/sync connections	 async/sync connections
		SITE1			SITE2