RE: MPLS signaling

["Rump Bryant" <rump_bryant () bah com>]

I think this depends on the network.  Most major tier 1 public IP backbones
do not necessarily run QoS through the core.  MPLS in these networks is used
for traffic engineering such as constraint-based routing and dynamic LSPs.
Private MPLS-based networks may (and do) use dynamic QoS signaling. Maybe
someone who maintains one of these networks could chime in.

Bryant

-----Original Message-----
From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of Paul
Khavkine
Sent: Tuesday, September 07, 2004 4:27 PM
To: Rump Bryant
Cc: nanog () merit edu
Subject: RE: MPLS signaling



So most people do manual QoS/bandwidth provisioning ?

I'm looking into this for L2 over MPLS VPN (Martini draft).


Thanx
Paul

On Tue, 7 Sep 2004, Rump Bryant wrote:

> RSVP is commonly used for LSP signaling/setup at least in one of the 
> largest tier one's MPLS architecture.  I'm not sure how many large ISPs 
> use e2e QoS enforcement (none in my experience with public IP 
> networks).  Several use DSCP (actually IP Precedence) at the edge (CPE 
> to ISP edge only).  RSVP-TE could be used if there was a need 
> (reserving bandwidth) for e2e QoS signaling, or alternatively perhaps 
> Bandwidth Broker
> (http://qbone.internet2.edu/bb/index.shtml) might be employed for the 
> same purpose.
>
>
> Bryant Rump
> Advanced Internetworking
> Booz Allen Hamilton
> rump_bryant () bah com
>
> -----Original Message-----
> From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of 
> Paul Khavkine
> Sent: Tuesday, September 07, 2004 12:36 PM
> To: nanog () merit edu
> Subject: MPLS signaling
>
>
>
>
> Hi folks.
>
>
> What is the most common way of doing MPLS signaling for LSP setup and 
> End to End QoS enforcement ?
>
> LDP ? RSVP ? BGP-TE  or OSPF-TE ?
>
> Thanx
> Paul
>
> ************************************************
> Paul Khavkine
> Network Administrator
> DISTRIBUTEL Communications.
> 740 Notre Dame West, Suite 1135
> Montreal, Quebec, Canada, H3C 3X6
> 1-514-877-5505 x 263
> http://www.distributel.net
> ************************************************


************************************************
Paul Khavkine
Network Administrator
DISTRIBUTEL Communications.
740 Notre Dame West, Suite 1135
Montreal, Quebec, Canada, H3C 3X6
1-514-877-5505 x 263
http://www.distributel.net
************************************************