Cisco IOS® MPLS Bandwidth-Assured Layer 2 Services Technology Overview Enabling Innovative Services October 2003 MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 1 Agenda • Announcement • Background • Business Drivers/Motivation • Cisco Bandwidth-Assured Layer 2 Services What is it? How is it different? • Availability/Roadmap • Summary MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 2 Announcement • Cisco IOS MPLS Bandwidth-Assured Layer 2 Services provides: Improved MPLS Layer 2 functionality that drives network convergence Better resiliency with MPLS Fast Reroute for AToM circuits QoS guarantees that emulate Layer 2 infrastructure built using L2 VPN QoS & MPLS traffic engineering • Provisioning of Cisco IOS MPLS BandwidthAssured Layer 2 Services handled by IP Solution Center 3.1 MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 3 Agenda • Announcement • Background • Business Drivers/Motivation • Cisco Bandwidth-Assured Layer 2 Services What is it? How is it different? • Availability /Roadmap • Summary MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 4 MPLS Is Key Technology for Delivery of Layer 2 & Layer 3 Services ATM Services IP Services IP PNNI MPLS IP+ATM Switch IP+ATM Integration Traffic Engineering: Optimization for Additional Traffic =>$$ Frame Relay Frame Relay MPLS VPNs: Build Once/ Sell Many Network-Based VPNs Optical Services IP Services IP O-UNI Protection Solution Reduction in CapEx & OpEx MPLS Bandwidth Assured Layer 2 Services MPLS ATM Layer 2 Integration for a Single Converged Network Infrastructure © 2003, Cisco Systems, Inc. All rights reserved. IP+Optical Switch IP+Optical Integration 5 Agenda • Announcement • Background • Business Drivers/Motivation • Cisco Bandwidth-Assured Layer 2 Services What is it? How is it different? • Availability/Roadmap • Summary MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 6 Service Provider Goal: Layer 2 & Layer 3 Services over a Converged Core Current In the near future Current: Many Services, Many Networks In the Near Future: Many Services, One Network HDLC FR PPP Frame Relay Ethernet Internet IP/MPLS L2 & L3 Services over Converged IP/ MPLS Core Internet ATM IPsec VPN Layer 3 VPN MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. ATM 7 Motivation for MPLS Layer 2 Services with Bandwidth Assurances • Requirements: Enterprise subscribers require global footprints Choice of access technology available – ATM, Frame Relay, Ethernet, etc. Choice of access speeds available – 64K, 512K, T1/E1, T3/E3, OC3, etc. Layer 2 chosen transport not only IP, but non-IP traffic like IPX, Appletalk, DECnet, etc. Layer 2 allows an enterprise to retain routing control for building value-added networks • Layer 2 infrastructure inherently provides bandwidth guarantees – e.g., Frame Relay CIR, ATM CBR/VBR • Consequently, MPLS Layer 2 services need to be built such that bandwidth assurances are enabled MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 8 Motivation for Network Convergence • Many Services, One Network • Applicable for incumbent and greenfield service providers • Incumbent service providers: Already have multiple networks installed – Internet, ATM, FR Network convergence enables significant savings of operating expenses (OpEx) • Greenfield service providers Building out new networks Network convergence enables a wide service portfolio Reduces capital expenses (CapEx) – no need to built separate networks Reduces OpEx – no need to train staff for multiple networks MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 9 Typical Deployment Requirement: Need to connect multiple sites with different Layer 2 access at each─e.g. Frame Relay, ATM, Ethernet Before Central Site Frame Relay Access Remote Site 1 Frame Relay – DS3 ATM – OC3 After Central Site ATM – OC3 ATM Network Ethernet Access Ethernet – 100 Mbps Remote Site 1 Frame Relay – DS3 IP/MPLS Converged Backbone Ethernet – 100 Mbps Interworking Gateway Remote Site 2 Interworking at IP layer only No bridged interworking Central gateway responsible for interworking MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. Remote Site 2 Layer 2 Interworking For IP and multiprotocol Done at the edge 10 Uses simple draft-martini signaling extensions Agenda • Announcement • Background • Business Drivers/Motivation • Cisco Bandwidth-Assured Layer 2 Services What is it? How is it different? • Availability/Roadmap • Summary MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 11 So What’s New? • This set of functionality enhancements provides flexible connectivity • For the first time service provider is able to offer similar functionality to existing Layer 2 connections MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 12 Announcement Details Any Transport over MPLS (AToM) enhancements Single-cell relay & packed-cell relay – VC & VP mode Ethernet over MPLS – Port mode Frame Relay to ATM/Ethernet/PPP/HDLC Interworking Ethernet to ATM Interworking Traffic Engineering & Fast Reroute for Layer 2 Fast Reroute support for AToM TE Tunnel Selection for AToM VCs TE LSP attributes RSVP Reliable Messages & Refresh Reduction QoS enhancements for Layer 2 Frame Relay QoS ATM QoS Ethernet QoS Provisioning Solution - includes IP Solution Center (ISC) 3.1 Support of VPLS in the L2VPN application MPLS Bandwidth Assured Layer 2 Services Policy-based QoS management © 2003, Cisco Systems, Inc. All rights reserved. 13 Any Transport over MPLS (AToM) Enhancements: Frame Relay & Ethernet Services QoS enabled on Layer 2 characteristics like Frame Relay Discard Eligible (DE) & Ethernet .1q IP/MPLS Backbone PE Customer Site PE Pseudowire PE Customer Site Customer Site Frame Relay PVC Multiple pseudo wires are carried over a single tunnel LSP Ethernet Access Frame Relay & Ethernet Interworking can be built in two ways: 1. Ethernet (Bridged) Interworking – for multiprotocol traffic 2. IP (Routed) Interworking – for IP endpoints MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 14 Any Transport over MPLS (AToM) Enhancements: Frame Relay & ATM Services IP/MPLS Backbone QoS enabled on Layer 2 characteristics like Frame Relay Discard Eligible (DE) & ATM Cell Loss Priority (CLP) PE PE Pseudowire Customer Site Customer Site PE ATM VC Frame Relay PVC Multiple pseudowires are carried over a single Tunnel LSP Frame Relay & ATM Interworking (FRF 8.1-like services) can be built in two ways: 1. Ethernet (Bridged) Interworking – for multiprotocol traffic/endpoint 2. IP (Routed) Interworking – for IP traffic/endpoint MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 15 Traffic Engineering for Layer 2: Tunnel Selection, LSP Attributes & RSVP/TE Signaling Tunnel Selection - Layer 2 circuits are forwarded onto TE Tunnel IP/MPLS Backbone MPLS TE Tunnel built using LSP Attributes & RSVP Reliable Messages/Refresh Reduction Customer Site Customer Site “Voice” Tunnel ATM CBR ATM CBR ATM UBR PE Customer Site “Data” Tunnel PE ATM UBR Customer Site Traffic Engineering for Layer 2: 1. Tunnel Selection forwards Layer 2 circuits onto a TE Tunnel & ensures end-to-end bandwidth guarantees 2. LSP Attributes─Allows “diverse routes,” eg. ATM CBR traffic carried via “shorter” tunnel, ATM UBR traffic carried via “longer” tunnel MPLS Assured 3. Bandwidth RSVP Reliable Layer 2 Services Messages / Refresh Reduction─increases reliability and scalability of RSVP/TE © 2003, Cisco Systems, Inc. All rights reserved. 16 Traffic Engineering for Layer 2: Fast Reroute support for AToM Tunnel Selection IP/MPLS Backbone Primary TE Tunnel Customer Site PE Customer Site PE Customer Site Customer Site Backup TE Tunnel – preprovisioned prior to failure condition Fast Reroute Support for AToM 1. Primary TE tunnel carries AToM pseudo wires using tunnel selection─when a failure condition occurs at PE router, e.g. Link Failure, Backup TE tunnel is activated and Layer 2 circuits are switched to backup MPLS Bandwidth Assured 2. 2 Services Fast reroute Layer © 2003, Cisco for Systems, Inc. All rights reserved. support AToM ensures AToM circuits restored within 50 ms 17 QoS Enhancements for Layer 2: ATM QoS Edge QoS Classification/Marking ATM-CLP, MPLS-EXP, IP DSCP, QoS-Group/Discardclass Traffic Conditioning Police (ATM 4.0 / Dual rate ) Congestion Mgt Queuing, Random-Detect, Discard-class, ABR RM Cell Generation IP/MPLS Backbone PE PE MPLS DiffServ Core Customer Site Core QoS Classification MPLS-EXP Congestion Mgt Queuing, Random-Detect EXP-Based Customer Site ATM L2 VPN QoS includes: 1. Edge capabilities that emulate traditional Layer 2 QoS like Police (ATM 4.0/Dual Rate) or ABR RM Cell Generation 2. Core capabilities that are DiffServ based─EXP bits on a per-class basis allow for scalable network MPLS Bandwidth Assured core Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 18 QoS Enhancements for Layer 2: Ethernet QoS Edge QoS Classification/Marking CoS/.1p, MPLS-EXP, IP DSCP, QoS-Group/Discardclass Congestion Mgt Queuing, Random-Detect Discard-class Traffic Conditioning Police (Single/ Dual rate) IP/MPLS Backbone VLAN Re-write PE PE MPLS DiffServ Core Core Classification MPLS-EXP Congestion Mgt Queuing, Random-Detect EXP-Based Customer Site VLAN Re-write Customer Site Ethernet L2 VPN QoS includes: 1. Edge capabilities that emulate traditional Layer 2 QoS like Police (Single/Dual Rate) 2. Core capabilities that are DiffServ based─EXP bits on a per-class basis allow for scalable network MPLS Bandwidth Assured Layer 2 Services core © 2003, Cisco Systems, Inc. All rights reserved. 19 Benefits • Cisco IOS® MPLS Bandwidth-Assured Layer 2 Services provides robust service delivery • No address resolution (ARP mediation) required with AToM Interworking • Flexibility of providing Layer 2 edge services with AToM – Ethernet, ATM, FR, PPP, HDLC • Ensures high availability of Layer 2 services with MPLS Fast Reroute • Enables robust signaling capabilities for RSVP/TE • Increases utilization of bandwidth of a network by MPLS TE • Enables Frame Relay CIR or ATM CBR type services on IP/MPLS backbones MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 20 ISC 3.1: MPLS & L2VPN Application Enhancements • Scalable distributed/redundant architecture • Centralized system resource management • Network/service autodiscovery & inventory mgmt • Topology tool with geographical maps • Resource/user partitioning • Web UI and customer network management (CNM) views • Customizable workflow control • Monitoring • Scheduling • Role-based access control • User audit trail • Open XML API MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 21 ISC 3.1: AToM/Metro Ethernet Management • Like-to-like services (MPLS control plane) • ATM virtual circuit service (ATMoMPLS) • Frame Relay virtual circuit service (FRoMPLS) • Ethernet virtual circuit service (EVCS or ERS- EoMPLS) • Transparent LAN service (Pointto-point TLS or EWS - EoMPLS) • VPLS • Switched backbone • Point-to-point TLS (Ethernet Wire Service) • Multipoint TLS over L2 core (EMS) • Ethernet access into MPLS/VPN supported in the MPLS VPN application MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 22 ISC 3.1: Policy-Based QoS Management • New policy-based QoS application •QoS policy (profile) predefinition •QoS implemented as separate service •Constraint matrixbased implementation to validate end-to-end implementation Customer 2) Match IP Prec/DSCP; Set MPLS EXP. Rate-Limit/Police and Apply Drop Policy MPLS Core • QoS design •QoS on access circuits •QoS definition for core-based on smart template utility • QoS based on DiffServ architecture • QoS implemented using MQC and nonMQC MPLS Bandwidth Assured Layer 2 Services 1) Packet Classification Through IP Prec/DSCP © 2003, Cisco Systems, Inc. All rights reserved. 3) Invoke QoS Policy Action Based on Edge Classification (Based on MPLS EXP), e.g. LLQ, CBWFQ, Drop Policy via WRED 23 ISC 3.1: QoS Mechanisms • Traffic classification • Protocol ID, Src/Dest Addrs., Src/Dest Ports, Port Ranges, DSCP, IP Prec, L2 CoS • Marking • DSCP between 0 & 63 • IP Precedence between 0 & 7 • MPLS Exp between 0 & 7 (when core has MPLS network) • Rate limiting • Class-based single-/dual-rate policer (MQC) and CAR (non-MQC) • Shaping • CB-shaping (MQC), interface-based GTS (non-MQC) • FRTS in the context of Frame Relay • ATM Shaper (vbr-rt, vbr-nrt, abr, cbr ubr) • Congestion management • CBWFQ (for Data) + PQ (for voice) • WFQ (for Data) + PQ (for voice) • Congestion avoidance • WRED with DSCP & IP Precedence • Link efficiency • LFI over MLPPP • LFI over Frame Relay, cRTP MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 24 Agenda • Announcement • Background • Business Drivers/Motivation • Cisco Bandwidth-Assured Layer 2 Services What is it? How is it different? • Availability/Roadmap • Summary MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 25 Competitive Positioning Feature Competition Comprehensive interworking ATM-FR Limited Ethernet-FR Limited Ethernet-ATM X Frame Relay – PPP/HDLC X Bridged Interworking (Ethernet) X Routed Interworking (IP) Limited Martini Signaling based X TE features DiffServ-aware TE support X AToM FRR support X TE tunnel selection X LSP attributes X RSVP reliability & scalability QoS features WRED, policing LLQ PQ Only Classification on L2 parameters MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. X 26 Feature Availability Feature Availability • Any Transport over MPLS (AToM) Enhancements Single Cell Relay & Packed Cell Relay – VC & VP Mode Now Ethernet over MPLS – Port Mode Now Frame Relay to ATM/Ethernet/PPP/HDLC Interworking Now Ethernet to ATM Interworking Now • Traffic Engineering & Fast Reroute for Layer 2 Fast Reroute support for AToM Now TE Tunnel Selection for AToM VCs Now RSVP Reliable Messages & Refresh Reduction Now TE LSP Attributes Now • QoS Enhancements for Layer 2 Frame Relay QoS Now ATM QoS Now Ethernet QoS Now • IP Solution Center (ISC) 3.1 Now MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 27 MPLS Roadmap Mass Deployment Baseline Services Newer Markets / Network integration Functionality • Multiservice Applications • VPLS • MPLS HA • Universal Control Plane •L2 Interworking • MPLS + IPsec •FR to ATM Interworking integration •Ethernet to FR/ATM Interworking •FR to PPP Interworking •Layer 2 Transport •ATM over MPLS •Frame Relay over MPLS •PPP/HDLC over MPLS •Ethernet over MPLS •Protection & Restoration •Link Protection •Node Protection •Scalable VPNs •Inter-AS •Carrier Supporting Carrier MPLS TE – Guaranteed Bandwidth Service MPLS FRR MPLS VPN MPLS TE ATM AAL5 over MPLS -3 years MPLS Bandwidth Assured Layer 2 Services -2 years Current -1 year © 2003, Cisco Systems, Inc. All rights reserved. Time 1 year 2 years 28 Agenda • Announcement • Background • Business Drivers/Motivation • Cisco Bandwidth-Assured Layer 2 Services What is it? How is it different? • Availability/Roadmap • Summary MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 29 Cisco Leads in the MPLS Market Americas EMEA AsiaPac/Japan Some 200 Customers (MPLS Core & L2/L3 Edge) MPLS Bandwidth Assured Layer 2 Services EBT © 2003, Cisco Systems, Inc. All rights reserved. Korea Telecom 30 The Cisco IOS Software Advantage Shipped MPLS in Cisco IOS Software release 11.1CT─July 1998 First to deploy IP/MPLS in a production network First to deploy MPLS Traffic Engineering First to deploy MPLS VPNs First to deploy QoS-enhanced MPLS TE First to ship MPLS TE Fast Reroute First to ship MPLS Managed Shared Services Broadest platform support Interoperable solution based in standards First to ship MPLS Bandwidth Protection FIRST to ship MPLS Bandwidth-Assured Layer 2 Services MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 31 Cisco IOS MPLS Bandwidth-Assured Layer 2 Services Smarter The foundation for more services and more revenues Enabling Innovative Faster A flexible QoS framework to enable migration to a converged infrastructure MPLS Bandwidth Assured Layer 2 Services Services © 2003, Cisco Systems, Inc. All rights reserved. Lasting Extensibility to different transports with standardsbased open architecture for investment protection 32 Summary • Cisco IOS MPLS Bandwidth-Assured Layer 2 Services provides: Improved MPLS Layer 2 functionality that drives network convergence Better resiliency with MPLS Fast Reroute for AToM circuits QoS guarantees that emulate Layer 2 infrastructure built using L2 VPN QoS & MPLS Traffic Engineering • Provisioning of Cisco IOS MPLS Bandwidth-Assured Layer 2 Services handled by IP Solution Center 3.1 MPLS Bandwidth Assured Layer 2 Services © 2003, Cisco Systems, Inc. All rights reserved. 33