k.korlyakov Wed, 01/16/2008 - 23:32
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"The Frame Relay switching enhancement feature currently does not support SVC switching functionalities. Presently, only PVC switching is supported."


Feature Navigator says the same - FR SVC Switching not yet supported :(


Thanks for help,

Kirill

pcameron Fri, 01/18/2008 - 10:18
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  • Cisco Employee,

if you just want to connect two routers back to back without a frame relay network in the between (for example another IOS router configured as a FR switch) there are two ways -


1) disable LMI keepalive on the interface. This stops router from sending or expecting LMI traffic so the interface will stay up permanently.


router 1


interface serial X/Y

encapsulation frame-relay

no keepalive

...


router 2


interface serial X/Y

encapsulation frame-relay

no keepalive

...


2) use the following configuration on one router to configure it as a frame relay DCE so it interfaces directly to the other frame relay DTE device -



frame-relay switching


interface serial X/Y

encapsulation frame-relay

frame-relay intf-type dce


you would still use PVC's via the same DLCI to pass traffic between each router.


Refer here for full details on frame relay config commands -


http://www.cisco.com/en/US/docs/ios/12_1/wan/command/reference/wrdfrely.html#wp1021315

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