[CCAMP] Comments on draft-zhang-ccamp-gmpls-h-lsp-mln-00

["Sadler, Jonathan B." <[e-mail]>]

Hello Fatai and Dan,

In this I-D, it looks like source node is specifying the specific technology used in the lower layer connection (i.e. the connection from Node B to C).

If Nodes B, E and C (as shown in Figures 2 and 3) are being provided by a separate carrier, this amounts to the customer of the service provider telling the service provider how to deliver their service.  This is problematic as the carrier may have different policy from the customer for how to deliver the service requested in the client layer.  In this case, do you envision the operator of Nodes B, E and C ignoring or refusing the service request?

Also, how do you signal the specific adaptation method that should be used?  If the adaptations used in Node B and Node C don't match, then the lower layer connection will not be useable by the client layer so coordination is important.

Finally, do you see this as being able to operate in a topology that has a widely varying topography (i.e. transitions down through multiple lower layers  and doesn't make an assumption the layers are simply nested)?

Thanks,

Jonathan  Sadler