The MPLS-OPS Archive

["Richmond, Jeff (ELI)" <jeff_richmond@eli.net>]

Well, if your IGP is already established, then you just need to select which signaling protocol you want to use. Juniper supports both LDP and RSVP. You'll get automatic LSP creation with LDP, but with RSVP, you get Traffic Engineering, named LSPs, Fast ReRoute, etc.

 

You can also go with a hybrid LDP over RSVP solution, if you so choose.

 

For grins, let's assume you go with RSVP. We have to configure a couple of steps to get MPLS working:

 

1. Enable family MPLS on the backbone interface (facing your core)

2. Enable the RSVP protocol

3. Enable the MPLS protocol

4. Build the LSP

 

For the first step, just enable family mpls like you would family inet. That enables MPLS support for that interface (e.g., set interface so-0/0/0 unit 0 family mpls)

 

For the second step, under protocols rsvp, enable each interface individually, or better yet, enable all, then specifically disable fxp0.0

 

protocols {
    rsvp {
        interface all;
        interface fxp0.0 {
            disable;
        }
    } 

}

 

 

Same thing for step #3. You'll also see the LSP config here:

 

protocols {
    mpls {
       label-switched-path TO-ROUTER_Z {
            to xyz.xyz.xyz.xyz;  <-- loopback of remote node
        }          

        interface all;
    }

 

This is a pretty basic config, but it should get you started. Remember, LSPs are unidirectional and only configured on the Ingress router, so you'll need to configure an LSP on Router_Z pointing back to the loopback IP of this router (Router_A).

 

Hope this helps.

 

-Jeff

 

 

-----Original Message-----
From: Hernan Hevia [mailto:hhevia@ntzn.com]
Sent: Thursday, October 14, 2004 8:57 AM
To: Richmond, Jeff (ELI); mpls-ops@mplsrc.com
Subject: RE: [MPLS-OPS]: Juniper MPLS

Jeff,

 

I'm thinking of starting with a simple LSP in the Juniper network, then I'll try to go RFC2547.

Any practical example on how to do that? What should I be aware of if I configure MPLS on a Juniper that is already in service with BGP, a couple of routing instances, etc? I don't want to jeopardize inet.0 configuring MPLS.

Thank you very much in advance.

 

Regards

Hernán

-----Original Message-----
From: Richmond, Jeff (ELI) [mailto:jeff_richmond@eli.net]
Sent: Thursday, October 14, 2004 11:17 AM
To: Hernan Hevia; mpls-ops@mplsrc.com
Subject: RE: [MPLS-OPS]: Juniper MPLS

Hernán,

 

There are a number of ways to deploy MPLS, so you'll probably want to narrow your focus down a bit. What exactly are you trying to accomplish? If it is just setting up an LSP from point A to point Z, well, that is pretty simple. If you are wanting to setup 2547 VPNs, that isn't difficult either, but requires a bit more work and understanding of MPLS and BGP, for example.

 

Regards,

-Jeff 

-----Original Message-----
From: Hernan Hevia [mailto:hhevia@ntzn.com]
Sent: Thursday, October 14, 2004 6:12 AM
To: mpls-ops@mplsrc.com
Subject: [MPLS-OPS]: Juniper MPLS

Hi,

 

I'm about to start working on an MPLS project using Juniper routers.

Could anyone provide good literature with examples, tips and tricks, etc, besides what is included in Junos documentation?

Thanks in advance!

 

Hernán