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RE: Basic MPLS VPN Design Question

  • From: "Irwin Lazar" <ILazar@burtongroup.com>
  • Date: Thu, 7 Aug 2003 09:39:42 -0600
  • Resent-Date: Thu, 7 Aug 2003 12:06:47 -0400
  • Thread-Index: AcNc7Jdz2CGDV157TJWNfgRg6ZwCeAADTtYg
  • Thread-Topic: [MPLS-OPS]: Basic MPLS VPN Design Question
  • To: <chris.waterbury@hstp.com>, <mpls-ops@mplsrc.com>

A lot will depend on your carrier.  Many carriers still offer separate PVCs for voice, as they don't support QoS on their MPLS-VPN services.  If this is the case with your carrier then you will likely need to buy a dedicated voice service.
 
For security reasons, it is generally advisable to isolate voice traffic within your LAN into a separate VPN.  However if you can prioritize over the WAN, I see no need for logical isolation.
 
Irwin
 
------
Irwin Lazar
Practice Manager, Burton Group 
http://www.burtongroup.com  
Phone: 703-742-9659 
-----Original Message-----
From: Chris Waterbury [mailto:chris.waterbury@hstp.com]
Sent: Thursday, August 07, 2003 6:53 AM
To: mpls-ops@mplsrc.com
Subject: [MPLS-OPS]: Basic MPLS VPN Design Question

Greetings,
 
I'm currently in the process of designing an MPLS based network.  I'm also somewhat new to MPLS.  A question has been raised about voice services.  This provider will be supplying both voice and data.  Some of our engineers are suggesting that all customer voice VLAN's be in the same VPN.  Others are suggesting that each customer have two VPN's, one data and one voice.  Still others suggest that the customer have one VPN for both.
 
I haven't been able to find any "best practices" documents on MPLS VPN design so I thought I would ask the list.  Any ideas would be greatly appreciated.
 
Thanks!
 
Chris Waterbury, CCNP
Principal Consultant
Heatseeker Technology Partners
612.636.5335