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 ************************************************
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 ************************************************
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 ************************************************
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 ************************************************
participants (2)
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Paul Khavkine -
Rump Bryant