The MPLS WG Archive

[abhay <abhay@multitech.co.in>]

Arpatim Mukherjee,

You Asked....
*1. There are three similar objects in the mplsTunnelTable ....
*mplsTunnelIndex , mplsTunnelInstance , mplsTunnelPrimaryInstance 
.
 *According to my understanding , mplsTunnelIndex is the same
as the TunnelId
*in the Session object .
* But how does mplsTunnelInstance and mplsTunnelPrimaryInstance fit
into
*RSVP-Te ?
* Are they outside the scope of RSVP-Te ?
* Or do they refer to LspIds of primary and secondary Lsps ?
                 If you are using RSVP-TE,you can have the following mapping:

                 1) mplsTunnelIndex -> Tunnel ID carried by RSVP

                 2) mplsTunnelInstance -> LSP ID carred by RSVP

                 mplsTunnelPrimaryInstance can be the LSP ID of the primary tunnel.

                 They are very much in scope with RSVP-TE

 

You asked....

> 2. the object mplsTunnelIngressId is defined to be
> used as the
> ExtendedTunnelId .
>  But then where will the SenderTemplate object's Sender IP address
> come from
> ?
>  

I beleive it can be the same as the TunnelIngressID


You asked...

 
3. What is the difference between ARHopTable and CHop Table ?
   Do they refer to incoming and updated EROs ?

Thanks in advance
Apratim

ARHopTable records the actual route taken by the LSP,which may be different from the specified one

and CHopTable contains entries which are populated with CSPF Calculated paths.

However both these tables are optional,if you dont have the RRO support in signaling and CSPF Module

to have Constraint based SPF's.

Regards,

Abhay