10-10-2008 06:55 AM - edited 03-03-2019 11:52 PM
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
Solved! Go to Solution.
10-10-2008 12:55 PM
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
10-10-2008 07:05 AM
10-10-2008 09:26 AM
hai ,
thank for the info
ujil
10-10-2008 09:02 AM
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
10-10-2008 09:30 AM
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
10-10-2008 12:55 PM
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
10-10-2008 09:59 PM
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
10-10-2008 09:32 AM
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
10-10-2008 09:37 AM
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
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