Frame relay switching

Frame relay switching allow a router to work as a level 2 frame relay device, creating DLCI's routing traffic at layer 2.

When you are working as layer 2 frame relay switch you must be the side of the link who sets the clock rate.

Here is an easy example of frame-relay switching.

We are going to configure the frame relay switch to use a number x in the interface s1/0 and another different Y in s2/1, routing the traffic from one DLCI to the other.

1 - Router(config)# frame-relay switching
2 - Router(config)#interface s1/0
3 - Router(config-if)#encapsulation frame-relay
4 - Router(config-if)#clock rate 56000
5 - Router(config-if)#frame-relay intf-type dce
6 - Router(config-if)#frame-relay route X interface Serial2/1 Y            x=local DLCI interface Y= dlci of the other interface
7 - Router(config-if)#interface s2/1
8 - Router(config-if)#encapsulation frame-relay
9 - Router(config-if)#clock rate 56000
10 - Router(config-if)#frame-relay intf-type dce
11 - Router(config-if)#frame-relay route Y interface Serial1/0 X

Author : Ivan Varela

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