Re: Comments on RSVP-TE-06

[Lou Berger <lberger@movaz.com>]

At 02:15 AM 12/11/2001, Rajaraman B wrote:
>Hi,
>     In the rsvp-te-06 draft, it has been written that "On reception of a 
> Path message, the Label Set represented in the message is compared 
> against the set of available labels at the downstream interface and the 
> resulting intersecting Label Set is forwarded in a Path message.".
>
>My doubts are,
>1. Whether Downstream interface is with respect to Control Flow direction 
>(direction of the Path message - Initiator to Terminator) or with respect 
>to Data Flow direction (Terminator to Initiator - that is, direction of 
>LSP path from Terminator to Initiator in the case of bidirectional LSP set 
>up using UPSTREAM_LABEL)

upstream (as always) = towards sender of path message

>2. if the terminalogy "upstream and downstream" is with respect to Control 
>Message flow direction, then whether Label Set object is used to restrict 
>the Label Range for establishing upstream LSP(from Terminator to 
>Initiator) path using UPSTREAM_LABEL or only for downstream LSP(Initiator 
>to Terminator) path using GENERALIZED_LABEL or Both (for upstream LSP and 
>downstream LSP)

generalized label.  upstream label is selected by the upstream node, so 
such restriction makes no sense.

Lou

>Thanks,
>Rajaraman. B
>