Solved: How to make a Frame relay cloud ...Help

bagvanliju · ‎10-10-2008

Hai,

i ve 3 routers and 2 L3 switches ...

2 1721 series

1 1821 series

2 3750 series

can i create "Simple" frame relay cloud using this ..if not how many routers are needed for this ....thought of doing ospf in frame relay cloud ...Help pls

ujil

Giuseppe Larosa · ‎10-10-2008

Hello Ujil,

a good link is the following to FR switching config examples

http://www.cisco.com/en/US/docs/ios/12_1/wan/configuration/guide/wcdfrely.html#wp1002491

http://www.cisco.com/en/US/docs/ios/12_1/wan/configuration/guide/wcdfrely.html#wp1003624

When connecting routers back to back with serial interfaces you need :

to provide clock with clockrate on the interface were the DCE V.35 cable is connected (V.35 female to check cable use sh controller serial x/y but not supported on all platforms)

to define one side as the FR DCE that will behave as the FR switch (that here is not present).

Frame-relay DCE is defined on the router that performs frame-rel switching

Topology is simple : have every router connected with a serial interface to a serial interface of the router acting as FR switch

using the notes above.

Use on DTE routers point-to-point and point-to-multipoint subifs according to your needs to deploy different topologies.

Hope to help

Giuseppe

View solution in original post

andrew.prince · ‎10-10-2008

Try using the below information:-

http://www.cisco.com/en/US/tech/tk713/tk237/technologies_configuration_example09186a0080094a3b.shtml

http://www.cisco.com/en/US/tech/tk713/tk237/technologies_configuration_example09186a0080094a3c.shtml

HTH>

bagvanliju · ‎10-10-2008

hai ,

thank for the info

ujil

Giuseppe Larosa · ‎10-10-2008

Hello lijesh,

to be able to emulate a FR cloud with a Hub router and two spokes you will need another router.

Try to find a 2500 router with 3 serial interfaces

Hope to help

Giuseppe

bagvanliju · ‎10-10-2008

hai Giu,

thanks alot ...will try the same ....one more help reqrd ...cud u share the config/toplogy ...so it wud b easy for me ..to execute the same ...

ujil

Giuseppe Larosa · ‎10-10-2008

Hello Ujil,

a good link is the following to FR switching config examples

http://www.cisco.com/en/US/docs/ios/12_1/wan/configuration/guide/wcdfrely.html#wp1002491

http://www.cisco.com/en/US/docs/ios/12_1/wan/configuration/guide/wcdfrely.html#wp1003624

When connecting routers back to back with serial interfaces you need :

to provide clock with clockrate on the interface were the DCE V.35 cable is connected (V.35 female to check cable use sh controller serial x/y but not supported on all platforms)

to define one side as the FR DCE that will behave as the FR switch (that here is not present).

Frame-relay DCE is defined on the router that performs frame-rel switching

Topology is simple : have every router connected with a serial interface to a serial interface of the router acting as FR switch

using the notes above.

Use on DTE routers point-to-point and point-to-multipoint subifs according to your needs to deploy different topologies.

Hope to help

Giuseppe

bagvanliju · ‎10-10-2008

Hai Giu,

Thanks a lot for the help will try to execut the same and let you know the status ...

thanks a lot once again

ujil

sdoremus33 · ‎10-10-2008

I currently am working on CCIE and had to emaulate a frame switch (frame cloud) I used (3) 3620 routers and as the frame switch 2514 I believe

If you need any help with the config let me know. Thanks and have a great day

bagvanliju · ‎10-10-2008

hai,

unfortunatly i dont ve higher end router in my lab ..so ...would b difclt for me ...what i wanted was to get familiar with NBMA (practically) ...which used to me confuse me a lot ......if u can share the topology and config (if its simple ) i can go tru that ..

thanks alot