12-29-2011 09:24 AM - edited 03-07-2019 04:06 AM
Hi all,
Happy holidays!
I was trying to implement this in my Lab.
Frame Relay Multipoint config ****************
Router A config
2691Router#sh run int se0/0
Building configuration...
Current configuration : 259 bytes
!
interface Serial0/0
ip address 192.168.1.1 255.255.255.0
encapsulation frame-relay
service-module t1 clock source internal
service-module t1 timeslots 1-24
frame-relay map ip 192.168.1.2 102 broadcast
frame-relay map ip 192.168.1.3 103 broadcast
2691 Router has 2 spare Serial cards *********************
Router B config
int se0/0
ip address 192.168.1.2 255.255.255.0
encapsulation frame-relay
frame-relay map ip 192.168.1.1 201 broadcast
Router C config
int se0/0
ip address 192.168.1.3 255.255.255.0
encapsulation frame-relay
frame-relay map ip 192.168.1.1 301 broadcast
Now i have no frame relay switch and in Multipoint network all connections go to the Frame relay switch.
Is there any way i can implement multipoint config in my lab?
Thanks
MAhesh
Solved! Go to Solution.
12-29-2011 11:55 AM
Hi,
You can use a router for Frame-Relay switch( so you need another one with 3 serials) otherwise you won't be able to do this config with 3 routers.
You can experiment multipoint without a Frame-relay switch but only with 2 routers.
Regards.
Alain
12-29-2011 02:02 PM
Hi Mahesh,
Happy Holidays!
When you are using physical interfaces (which is in your case), then you use them as point-to-point. If you are using a frame relay switch to configure point to multipoint interfaces, then you use one physical interface with multiple sub-interfaces. For example if the serial interface is s0/0, the point-to-point sub-interface will be s0/0.100 and the next one 101, 102, etc... This way you only pay for 1 T1, but you can use the same WIC to connect to multiple site. Imagine a HQ connecting to 4 different branch offices. You can use one interface at the HQ T1 with multiple Sub-interface each connecting to a different branch office. Obviously the speed would be slow, because these are sup rates of 128Kb.
If you want to use you 2691 as a frame relay switch, you can, but I recommend you buy a cheap 2522 router and use it as a frame relay switch.
HTH
12-29-2011 11:55 AM
Hi,
You can use a router for Frame-Relay switch( so you need another one with 3 serials) otherwise you won't be able to do this config with 3 routers.
You can experiment multipoint without a Frame-relay switch but only with 2 routers.
Regards.
Alain
12-29-2011 01:27 PM
Hi Cadet.
My 2691 Router has 3 serial cards
Other 2 routers have 1 serial card each.
For Multipoint config you mean that i can only test between 2691 Router and Router B ? right?
IF second serial card from Router 2691 connects to Router C then that i can config as point to point right?
IF third serial card from router 2691 connects to Router D then that i can config as point to point right?
Also for point to point connection i can make 2691 as frame relay switch right?
Thanks
mahesh
12-29-2011 02:02 PM
Hi Mahesh,
Happy Holidays!
When you are using physical interfaces (which is in your case), then you use them as point-to-point. If you are using a frame relay switch to configure point to multipoint interfaces, then you use one physical interface with multiple sub-interfaces. For example if the serial interface is s0/0, the point-to-point sub-interface will be s0/0.100 and the next one 101, 102, etc... This way you only pay for 1 T1, but you can use the same WIC to connect to multiple site. Imagine a HQ connecting to 4 different branch offices. You can use one interface at the HQ T1 with multiple Sub-interface each connecting to a different branch office. Obviously the speed would be slow, because these are sup rates of 128Kb.
If you want to use you 2691 as a frame relay switch, you can, but I recommend you buy a cheap 2522 router and use it as a frame relay switch.
HTH
01-03-2012 11:08 AM
Hi Alain and Reza,
Many thanks for replying back to my question.
Thanks
MAhesh
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