Frame-Relay PVC bundle

In this short piece i would like to show how Frame-Relay PVC bundles work. A PVC bundle is exactly what the name says. Its a bundle of PVC’s, with each PVC handling a certain Precedence, MPLS EXP or DSCP. A requirement for the PVC bundle is that all IP Precedence or DSCP values will be handled by one of the PVC’s, so you need to set the “default” PVC unless
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Service Provider emulation of a frame-relay network using MPLS.

One of the cool things about MPLS is its versatility. In this post i will show how its possible for a service provider to support legacy frame-relay installations without actually having any frame-relay switches. I will establish an MPLS core and show how a customer with three sites, one hub site and two spoke sites, will never even know that the core is running MPLS and not end-to-end frame-relay.
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