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Avici TSR – An overview “True scalable routing ”

Avici TSR – An overview “True scalable routing ”. Ides Vanneuville Systems Engineer - EMEA. Agenda. Introduction Next (best) generation networking Software features Hardware features Summary. Who is Avici ?. Founded: 1996 Billerica, MA

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Avici TSR – An overview “True scalable routing ”

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  1. Avici TSR – An overview“True scalable routing” Ides Vanneuville Systems Engineer - EMEA Avici Company Confidential

  2. Agenda • Introduction • Next (best) generation networking • Software features • Hardware features • Summary Best generation networking

  3. Who is Avici ? • Founded: 1996 Billerica, MA • Mission:To market scalable core routers that delivers service providers reduced capital and operational expenditures and simplified operations without service disruptions • Public Company (Nasdaq AVCI), $ 240 million raised • 400 + employees worldwide, 11 in Europe • Gained market share (in last 12 months) • 2% in core router market (+1G links) • 6.5% in core router market (10G links) Best generation networking

  4. Optical Core Provider IP Core (P) Provider Edge (PE) Customer Premise Equipment (CE) Next generation network Avici Avici Avici Avici Best generation networking

  5. Software features Avici Company Confidential

  6. About IPriori • Unicast Routing • Fully featured BGP-4 Implementation • Confederates, Route Reflectors, damping, policy, Route Redistribution, Aggregation, dynamic configuration, peer security • IGP Support • IS-IS • Level 1 and 2 support, Route Redistribution, Database overflow support, passive interface support • OSPF • Stub Area support, Virtual links, Router Summarization, Passive Interface support, Route Redistribution • Multicast Routing • PIM Sparse Intermediate Point • PIM Dense/Sparse, Auto-RP, MSDP, MBGP for mcast NLRI Best generation networking

  7. server-id 2 upper hostname bay_TWO_UPPER_server system-password 7 S9bQQdb9Sd interface Loopback 0 ip address 6.6.6.1 255.255.255.0 no shutdown interface Ethernet 0 ip address 10.5.222.1 255.255.0.0 no shutdown module 1/15 4xoc3c no shutdown interface pos 1/15/1 ip address 1.1.1.1 255.255.255.0 crc 16 no keepalive sonet scramble-atm no shutdown module 1/17 1xoc48c no shutdown interface pos 1/17/1 clock source internal ip address 10.6.222.7.1 255.255.0.0 no keepalive sonet scramble-atm no shutdown router ospf 100 network 10.10.10.0 0.0.0.255 area 0.0.0.0 ip route 5.5.5.0 255.255.255.0 null0 ip community-list 1 deny 45940756 ip community-list 1 deny 46071828 ip community-list 1 deny 46006292 ip as-path access-list 1 permit ^$ ip as-path access-list 100 deny _1_ ip as-path access-list 101 permit _65010_ ip as-path access-list 286 permit _286_ ip as-path access-list 286 permit _3561_ ip as-path access-list 286 permit _701_ route-map EBGPMAP permit 10 set local-preference 25 set metric 150 route-map IBGPMAP deny 10 match as-path 100 286 route-map IBGPMAP permit 20 set community 45940837 set local-preference 80 set metric 10 route-map connected-bgp permit 10 set community 45940847 set origin igp route-map static-bgp permit 10 set community 45940848 set origin igp bay 1/1 logging console platform all system bgp end Easy Migration - Industry CLI router bgp 4293 bgp router-id 1.1.1.1 bgp dampening route-map 1 redistribute connected route-map connected-bgp redistribute static route-map static-bgp neighbor ebgp peer-group neighbor ebgp send-community neighbor 3.1.1.2 remote-as 200 neighbor 3.1.1.2 peer-group ebgp neighbor 3.1.1.2 timers 6 neighbor ibgp peer-group neighbor ibgp remote-as 4293 neighbor ibgp send-community neighbor ibgp route-map IBGPMAP out neighbor 1.1.1.2 remote-as 4293 neighbor 1.1.1.2 next-hop-self neighbor 1.1.1.2 route-reflector-client neighbor 1.1.1.2 timers 180 neighbor 2.1.1.2 remote-as 4293 neighbor 2.1.1.2 next-hop-self neighbor 2.1.1.2 route-reflector-client neighbor 2.1.1.2 send-community neighbor 2.1.1.2 timers 180 neighbor 2.1.1.2 route-map IBGPMAP out neighbor 10.10.10.2 remote-as 100 neighbor 10.10.10.2 timers 180 Best generation networking

  8. Management and Security • SNMP • Standard and vendor-specific MIBS • RMON Events and Alarms Group • 64bit counters • System event log for all events • Protocol activity (tracing) • Local and remote SYSLOG • Log all CLI commands • Standby Route Servers • Dual Servers can be deployed for additional redundancy • Traffic separation • All ForMe traffic is classified into 24 application-specific queues serviced by WRR to avoid starvation of control traffic and ensure against DoS attack • Configurable for ForMe Traffic Filters • Security • TACACS+ • Secure Shell Best generation networking

  9. Network and Traffic Engineering • Leverage emerging D-WDM Technology • Get ahead of the serial bandwidth curve • Stabilize topology • Enable Rapid Provisioning • Simplify the IP routing mesh • Provide Protection options • Provide TE network for the transport of Diff-serv traffic • Enable Circuit Emulation/Private Line Service • Enable 45ms restoration Best generation networking

  10. OC-48c 10G vOC192 OC-48c OC-48c OC-48c Composite Links • Combines up to 64 physical connections to a single logical connection • Removes serial bandwidth limitations • Granular bandwidth scaling • 4-1 speed mismatch • Preserves packet sequence • Add/remove trunks dynamically • Recovery in 45ms • Compartmentalizes link failure • Routing table stability ! interface pos 2/29/1 no ip address no keepalive sonet scramble-atm no shutdown ! interface composite-link TSR1_CL ip address 100.100.100.1 255.255.255.0 peer default ip address 100.100.100.2 member-link POS 1/22/1 member-link POS 1/37/1 member-link POS 1/39/1 member-link POS 2/29/1 no shutdown Best generation networking

  11. TSR monitors load on composite links If total premium traffic exceeds a limit, shifts ports from other links Composite Link3 λ Optical Switches Composite Link4 λ Demonstrated interoperability Label Switch Router Composite Links & intelligent optics Composite Link4 λ Optical Switches • TSR signals optical switch to reassign wavelength to high traffic link • Dynamic reallocation of total network Composite Link3 λ Label Switch Router Best generation networking

  12. SuperCOM 2001 demo Best generation networking

  13. MPLS Traffic Engineering • Ingress, Midpoint, and Egress • Penultimate Hop Popping is NOT mandatory • Ingress behavior allows unparalleled tunnel scaling • Constraint Based Routing with Avici enhancements • Enhanced RSVP signaling for Label Distribution • Enhanced OSPF and IS-IS to support TE • LDP • End to end TE instrumentation for network mngt • Tight Integration with Composite Links • Hardware label switching on OC-3, OC-12, OC-48, OC-192 and Gigabit Ethernet Best generation networking

  14. Router K's Next Hop For Routes in Subscriber ISP 1 ISP 1 I BGP Backbone Provider Router E's Next Hop For Routes in ISP 2 Subscriber ISP 2 J BGP Incoming Transit Traffic Router G's Next Hop Short Cut Tunnel 2 For Routes in ISP 3 G Subscriber F BGP D H BGP ISP 3 Traffic Engineering EGRESS LSR K Shortest Path to ISPs 1, 2, 3, and 4 B Short Cut Tunnel 1 INGRESS E LSR C A EGRESS LSR M Subscriber Router G's Next Hop ISP 4 For Routes in ISP 4 Best generation networking

  15. 0% loaded, 600sec 5 200 sec D 50% loaded, 180sec 4 TE Reflood Timing 100 sec C 90% loaded, 20sec 3 15 sec B 95% loaded, 10sec 2 5 sec A 99% loaded, 3 sec 1 T = 0 Percentage of link loading Optimized Path Layout • Intelligent MPLS Reflood Timing • Improve responsiveness of Ingress path layout • Resilience Optimization • Recover from MPLS failures with minimal impact to core topology • Adaptivity Optimization • Take full advantage of positive changes in the core topology • Rebuild LSPs, ordered by required bandwidth Best generation networking

  16. Integration with Composite Trunks Compose Trunk Subnet 1 Subnet 1 Subnet 2 Subnet 2 Higher Pre-emption value affects tunnel rerouteRe-route time affected by reservable bandwidth attribute Best generation networking

  17. MPLS Fast-Reroute Protection Router switches traffic to pre-configured backup • Allows identification of which traffic to protect • Traffic switched to backup and traffic normally on link contend for resources using QoS – no traffic is discarded if link is not over-utilized • Works for POS and gigabit Ethernet Best generation networking

  18. MPLS Fast-Reroute Drafts • draft-atlas-rsvp-local-protect-interop-01.txt (Avici) • draft-swallow-rsvp-bypass-label-01.txt (Cisco) • draft-gan-fast-reroute-00.txt (Juniper) Best generation networking

  19. PeeringNode PeeringNode OpticalSwitch AviciTSR AviciTSR OpticalSwitch Customer Customer PENode PENode OpticalSwitch AviciTSR AviciTSR OpticalSwitch Customer Customer PeeringNode PeeringNode Customer VPN Support: RFC 2547 • VPN-P Support • Support for Multi-Protocol Extensions to BGP-4 to support route-distinguisher • Compatible with Cisco, Juniper, Unisphere, Riverstone, Alcatel, etc. • Traffic Engineering/VPN tunnel integration • Provide a TE core for Virtual Private Networks Best generation networking

  20. QoS Functional Summary • Combination of WFQ, WRR, WRED and GPRA (CBR) • Programmable ASIC Pipeline • Multiple hierarchy of Algorithms • Many iterations per algorithm implemented • Minimum packet data handling • Functionality increased for Multiservice module • Counters maintained per interface,VC,class traffic management and accounting information Best generation networking

  21. 8 Class Policer Classifier Fabric Queues Group Policer Direct Connect Fabric CTL REG PR Group Shaper BE 8 Class RED 512 Class Shaper QoS Treatment per node Best generation networking

  22. MPLS TE/Composite Trunks/QoS WRED discardstunnel two orhop-by-hop trafficduring tunnel reroute Compose Trunk Subnet 1 Subnet 1 Subnet 2 Subnet 2 QoS operates on Diff-serv inferred MPLS exp marking Best generation networking

  23. Traffic Engineering with QoS • Enables no-loss, low delay variance, low latency services • Virtual Leased Line • Voice over IP • Storage Area Networks • Add new properties to Service Level Agreements • Improve reliability at reduced cost • Deliver protection appropriate for each service, up-to SONET APS levels • Improve utilization in network backbone Best generation networking

  24. Hardware features Avici Company Confidential

  25. The Avici Systems TSR • Carrier class features • Carrier class design • Unprecedented scaling • Future proof Best generation networking

  26. Patent-pending Velociti™ Fabric • Toroidal direct connect fabric • Scales to 560 active modules • Each element adds switching & forwarding capacity • Generation 1 - 60 Gbps • Generation 2 - 240 Gbps • Each module connects to6 other modules • Path diversity through fabric • Resilient • Non-blocking Best generation networking

  27. Growing the TSR System • Expanding the interconnect • Two physical backplanes in each bay • Connected top-to-bottom • Connected side-to-side • Connected over-the-top • Power Distribution • -48VDC 60A per shelf redundant feed • Environment Controllers • Two per bay interconnected between bays Best generation networking

  28. Avici Product Scalability 1 TSR 400 Gbps 6 TSR Bay 2.4 Tbps 4 TSR Bay 1600 Gbps 2 TSR 800 Gbps 1 SSR 200 Gbps SSR/TSR 600 Gbps 2 SSR 400 Gbps Best generation networking

  29. TSR™ Interface Modules • Packet over SONET/SDH • Concurrent IP and MPLS • 1 port OC-192c/STM-64 • 1 port OC48c/STM-16 • 2 port OC48c/STM-16 • 4 port OC12c/STM-4 • 4 port OC3c/STM-1 • 16 port OC3c/STM-1 • Ethernet • 2 port GbE • 8 port GbE Q2/02 • 10GbE 2H/02 Best generation networking

  30. MulticastExpander &PacketScheduler O/EConversion O/EConversion SONETTermination PPP/MPLSProcessing ForwardingEngine Packet Memory 64 MB Control ProcessorFE Interface Fabric Switch BACKPLANE E/OConversion PacketQoS SONETTermination PPP/MPLSProcessing Module I/O Architecture Best generation networking

  31. MulticastExpander &PacketScheduler MulticastExpander &PacketScheduler MulticastExpander &PacketScheduler O/EConversion O/EConversion O/EConversion SONETTermination SONETTermination SONETTermination PPP/MPLSProcessing PPP/MPLSProcessing PPP/MPLSProcessing ForwardingEngine ForwardingEngine ForwardingEngine PowerPCProcessor PowerPCProcessor OSPF BGP4 IS-IS SNMP Fast Ethernet OSPF BGP4 IS-IS SNMP Fast Ethernet Fast Ethernet Fast Ethernet SSD Control ProcessorFE Interface Control ProcessorFE Interface Control ProcessorFE Interface MSDP MBGP PIM FTP HDD Fabric Fabric Fabric Switch Switch Switch PCMCIA MSDP MBGP PIM FTP PCMCIA RSVP CLI RSVP CLI E/OConversion E/OConversion E/OConversion PacketQoS PacketQoS PacketQoS SONETTermination SONETTermination SONETTermination PPP/MPLSProcessing PPP/MPLSProcessing PPP/MPLSProcessing Control ProcessorFE Interface Console Control ProcessorFE Interface Console Server Memory 580Mb Server Memory 320Mb MulticastExpander &PacketScheduler O/EConversion SONETTermination PPP/MPLSProcessing ForwardingEngine ModuleControl Software Control ProcessorServer Interconnect Packet Memory 64 Mb Fabric Switch E/OConversion PacketQoS SONETTermination PPP/MPLSProcessing Software & System Architecture Routing and Configuration tasks Forwarding and Fabric Routing tasks Bay & Environment Controller Bay & Environment Controller Best generation networking

  32. Field proven operation • First systems deployed in NTON (DARPA Supercomputer research network) • Operational in the Internet in May 1999 (BGP) • Currently deployed in one of the worlds largest carrier IP networks • Support OC-192 links • Operating as BGP Route Reflector in one of the worlds largest RR configurations Best generation networking

  33. AT&T network Best generation networking

  34. Summary Avici Company Confidential

  35. Summary - Carrier imperatives • Cost • Lower the cost of building and operating the network • Velocity • Decrease the time to add or change services • Profit • Deliver value added services and quality of service enhancements Best generation networking

  36. Lower Operational Costs Backbone Interfaces Backbone Interfaces VS. High Speed(Optical) IP Transit Low Speed (electrical) IP VPN / Low Speed Transit Low Speed (electrical) High Speed(Optical) Customer Facing Interfaces Customer Facing Interfaces Current best practice Avici alternative Best generation networking

  37. 10λ 14λ 6λ Provisioning - Months to Minutes • Backbone capacity increased without truck-rolls • Market share not impacted by provisioning • Immediate provisioning for all bandwidth products up-to physical network capacity Immediate fulfillment of customer demands Best generation networking

  38. Velocity – Composite Links • Avoid hitting the transmission capacity wall • Backbone links with 64 times the capacity of our competitor on the same transmission network • No impact to customer or network stability Backbone Capacity added in days not months Best generation networking

  39. Profit • Use IP core for converging all services • Scale services past competitors offerings • Spend your time creating new services… • Make€€€€ at the edge of the network • Save€€€€ at the core of the network Best generation networking

  40. Conclusion • Next generation public network switch • Scalability • Non-stop system and software architecture • Quality of Service • Network and Traffic Engineering • Benefits • Reduce capital costs • Stable service velocity • Increased equipment life cycle Faster, stable network expansion & dramatic reduction in cost per bit delivered Best generation networking

  41. Thank You Avici Company Confidential

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