The MPLS WG Archive

["Darek Skalecki" <dareks@nortelnetworks.com>]

Title: RE: Merging SE style reservations for make-before-break

Since you are doing make-before-break for lsp1, I think it should contain 1M until the old route (R1-R2-R3) of lsp1 is terminated, i.e. traffic of lsp1 is switched from old route to new route and old route terminated. Subsequently, it should contain 500K.

Darek

-----Original Message-----
From: jiri prekow [mailto:jiri_prekow@yahoo.com]
Sent: June 16, 2003 5:09 PM
To: mpls@UU.NET
Subject: Merging SE style reservations for make-before-break

Hi,

I have a confgiuration as follows-

 
R1========R2==========R3
\        /
 \      /
  \    /
   \R4/

lsp1 takes the path R1-R2-R3 with a reservation of 1M
At this time you do a make-before-break for lsp1 with
a lower bandwidth of say 500K, and it takes the path R1-R4-R2-R3. When you get the resv at R2 it will have a 
flow descriptor of 1M followed by 2 filter specs. When
R2 sends out a resv to R4 for the new
make-before-break lsp should the flow descriptor
contain a value of 500K or should it be 1M.

Thanks
Jiri

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