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RE: Query reg preemption

  • From: "Rudisill, Amelia" <rudisila@ncr.disa.mil>
  • Date: Fri, 25 Jul 2003 09:43:20 -0400
  • Resent-Date: Fri, 25 Jul 2003 10:20:27 -0400
  • To: "'manimrs@future.futsoft.com'" <manimrs@future.futsoft.com>, mpls-ops@mplsrc.com

It's my understanding that when a new LSP is created, its setup priority is
compared to the existing LSPs hold priority.  If the setup priority has a
higher priority than the holding priority of the existing LSP, the new LSP
will use the path of the existing LSP.  The existing LSP is either re-routed
or in the scenario below in which all bandwidth is exhausted, the existing
LSP would be disconnected.

Amelia

-----Original Message-----
From: Mani Mahadevan [mailto:manimrs@future.futsoft.com]
Sent: Tuesday, July 22, 2003 12:11 PM
To: mpls-ops@mplsrc.com
Subject: [MPLS-OPS]: Query reg preemption


Hi,
I have a query reg preemption.

1) How is preemption done for SE Style LSPs?
    Say if i have 2 FF Style LSPs on interface X and if i try to
    setup another SE Style LSP with higher priority thru the same
    interface X, can this SE Style LSP preempt the FF style LSP 
    (considering that bandwidth is exhausted on interface X by the
      2 FF Style LSPs).

    
Thanks
-Mani
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