MPLS


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MPLS

MPLS

(1) (MultiProtocol Lambda Switching) An earlier name for generalized multiprotocol label switching (see GMPLS).

(2) (MultiProtocol Label Switching) A standard from the IETF for directing packets in a wide area IP network. Operating below the IP layer and above the optical layer, MPLS is used to ensure that packets take the same route. It is deployed by telcos and ISPs to support service level agreements (SLAs) that guarantee bandwidth. Large enterprises may also use MPLS in national private networks.

Label Edge Routers and Label Switching Routers
Similar to Cisco's tag switching, an MPLS router attaches labels (tags) containing forwarding information to outgoing IP packets. These "label edge routers" (LERs) sit at the edge of the network and perform the complex packet analysis and classification before the packet enters the core of the network. The routers within the core, known as "label switching routers" (LSRs), quickly examine the label and forward the packet per its directions without having to look up data in tables and compute the forwarding path each time. The edge routers at the receiving end remove the labels. See VPLS, GMPLS and Diffserv.


An MPLS Core
Using IP and MPLS in the core, a service provider can offer its customers a virtual private VPN service for IP traffic with guaranteed bandwidth.
References in periodicals archive ?
One of the greatest advantages of MPLS VPNs is that no intelligence is required in the CPE devices, since all of the VPN functions are performed at the core, meaning that customers may now use much less expensive CPE devices.
A new chapter with up to date coverage of the MPLS transport profile, MPLS-TP.
By extending end-to-end MPLS SLAs to include our partners, customers can count on the quality of MPLS service they've come to expect from Sprint everywhere across the global Sprint-owned and partner MPLS footprints.
Redback has also announced features to enhance its QoS implementation such as per class policing and MPLS QoS.
Using the Optixia test platform with IxNetwork, end-to-end user traffic is being tested and verified for interoperability and performance over multiple topologies including multi-carrier Layer 2 and Layer 3 VPN over MPLS, End-to-End Pseudowires and Multi-Segment Pseudowires.
Cisco's MPLS enhancements have given us improved network efficiencies and added functionality for our IP VPN customers," says Charles Salameh, vice president of New Cisco Technologies Enable Managed Shared Services Over MPLS Page 3 Bell Managed Solutions, Bell Canada.
Customers in the banking and financial industry have been some of the fastest adopters, but the migration to MPLS is not limited to this industry.
A key objective in this event was to verify the ability of the optical transport network to recover from control plane failures using Graceful restart mechanisms as defined for IETF-based Generalized MPLS (GMPLS) signaling.
The ATM and Frame Relay to MPLS Control Plane Interworking: Client-Server (MFA Forum 10.
How are developments in MPLS technology likely to impact the development of Carrier Ethernet solutions?
WASHINGTON -- Isocore today announced the technical program for the MPLS 2006 International Conference which will take place October 15-18, 2006 in Washington, DC.
Working with more than 10 leading MPLS and GMPLS vendors at Isocore, Agilent N2X supported the functional and performance verification of the IPTV service delivery over MPLS and MPLS/GMPLS interworking.