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RE: IP VPN over MPLS backbone

  • From: "Abidin Kahraman" <abidin.kahraman@sabancitelekom.com>
  • Date: Mon, 24 Nov 2003 13:08:29 +0200
  • Resent-Date: Mon, 24 Nov 2003 06:39:41 -0500
  • Thread-Index: AcOuhRE7f5Ey1TJLQ7e3WzQXjkk93wD9FMYg
  • Thread-Topic: [MPLS-OPS]: IP VPN over MPLS backbone
  • To: "Aleksandar Dzambaski" <dzambo@mt.net.mk>, <mpls-ops@mplsrc.com>
  • X-MIME-Autoconverted: from quoted-printable to 8bit by host.secure4-hosting.net id hAOB6bFq014512

Hi,

There are some answers for your 1st question, I would like to give you some opinion about your backup ISDN circuits. You can ask your SP for L2TP or L2F tunneling solution over LNS. Thus they can put your ISDN routes into your specific VRF.

Regards,

Abidin. 

-----Original Message-----
From: Aleksandar Dzambaski [mailto:dzambo@mt.net.mk] 
Sent: 19 Kasım 2003 Çarşamba 11:51
To: mpls-ops@mplsrc.com
Subject: [MPLS-OPS]: IP VPN over MPLS backbone

Hi,

I currently have a Frame Relay network with central site and 22 remote
locations, coupled with ISDN backup. The system works fine, but now our
telecom provider has new service.



They have MPLS backbone, and they are offering IP VPN connections as a
replacement for our current network.



I spent several days in research for this new opportunity and I see that
obviously this is a better offer. We will start a test period in which we
are supposed to connect several locations just to compare with the Frame
Relay.



Now here are the questions:

1. I have problem with understanding the configuration of the customer
(mine) router. I have read many papers about configuring the PE and P
routers in the MPLS backbone, and the PE interface to the CE router, but I
haven't found a paper describing the configuration of the CE interface to
the PE router, nor I have found an example of it. Can someone point me or
explain the configuration of the IP VPN interface. Are there any examples of
it or comparison with the Frame Relay configuration?



2. The current situation is with ISDN backup lines which are configured with
static routes and Frame Relay end-to-end keepalive parameters. This
eliminates using dynamic routing protocols (ex. RIP, OSPF...). Regarding the
previous question and this statement, are there any possibilities of keeping
the static routing or should we definitely turn to a dynamic routing
protocol.



Best regards,

Aleksandar



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