NORTEL NETWORKS CONFIDENTIAL Passport 8600 Routing Switch Release 3.3. - презентация

1 NORTEL NETWORKS CONFIDENTIAL Passport 8600 Routing Switch Release 3.3

2 Presentation Name - 2 NORTEL NETWORKS CONFIDENTIAL Notes to Presenter This presentation is intended as a dual level presentation for both business level (CIO) and semi-technical level (Network Managers) to set out the requirements of a core switch in todays converged campus environment and explains why the Passport 8600 as at Release 3.3 is the ideal product to suit that role. Please read the speaker notes as these contain the key points to make throughout the presentation. Use the main notes for business level adding the Technical Description for the technical audience

3 Presentation Name - 3 NORTEL NETWORKS CONFIDENTIAL CIOs Priorities Do more with less Drive employee productivity with IT Use IT to grow revenues Use IT to anticipate customer requirements Tactical Strategic

4 Presentation Name - 4 NORTEL NETWORKS CONFIDENTIAL Needs of the future enterprise network IP telephony succeeds traditional telephony Business connectivity via the internet Internet Consistent customer experience everywhere Security for all applications and services Storage and networking at light speed

5 Presentation Name - 5 NORTEL NETWORKS CONFIDENTIAL Key Requirements High Availability –99999s Reliability means uptime all the time. Bandwidth, Security and Quality of Service ensuring application delivery with fail-over schemes that preserve application integrity. Operational Simplicity –Simple to install, Simple to maintain, Simple to manage. Reduced complexity through a leaner more integrated intelligent infrastructure design. Low Cost of Ownership –Reduced purchase, installation and maintenance costs through reduced complexity, the ability to consolidate resources and a lower box count.

6 Presentation Name - 6 NORTEL NETWORKS CONFIDENTIAL Applications Drive Infrastructure Streaming Video –Constant stream of data – no pauses or interruptions –Unidirectional – server to client –Low bandwidth – 2-4Mbps VOIP (IP Telephony) –Constant stream of data – no pauses or interruptions –Bi-directional – client to client or peer-to-peer –Very low bandwidth – 8kbps-64kbps –Sporadic bursts of traffic – varying size (attachments) –Bi-directional – client to server to client –Varying bandwidth - greedy, will take all available

7 Presentation Name - 7 NORTEL NETWORKS CONFIDENTIAL Two Tier Infrastructure design Edge High density 10/100 Ethernet ports for user connections and Gigabit Ethernet for riser connections. Access security controls and QoS mapping. Core High Density Gigabit Ethernet for riser connections. ATM, SONET and Optical connections for MAN/WAN access and L4-7 Applications switching for Data Center integration.

8 Presentation Name - 8 NORTEL NETWORKS CONFIDENTIAL What is required in a core switch ? Connectivity –Campus – Gig/10 Gig LAN –Metro –XD Gig, WDM, Optical –WAN – ATM,SONET, 10 Gig WAN Features –QoS enforcement and Queuing –Redundancy with Hot Swap –Application Switching (L2-7) Performance –Cross connect bandwidth –Low Latency & Jitter –Consistent throughput Everywhere Else

9 Presentation Name - 9 NORTEL NETWORKS CONFIDENTIAL Passport 8600 Routing Switch Modular Platform –Passport 8000 family –Layer 2 Switching –Layer 3 IP, IPMC and IPX Routing –Layer 4-7 Application Switching Ethernet –10/100TX, 100FX –Gigabit SX, LX, ZX, XD & CWDM –10 Gigabit LR & LW ATM and SONET –DS3, OC-3 and OC-12 –Gateway functions –Switching/Routing done in Ethernet

10 Presentation Name - 10 NORTEL NETWORKS CONFIDENTIAL It fits in the wiring closet delivering high density (384) 10/100 Ethernet ports for user connections It fits in the data center delivering high density L4-7 application switching for server selection & load balancing It fits in the network center delivering high density (128) Gigabit Ethernet ports for aggregation, riser and MAN connections It fits in MAN/WAN delivering Gigabit Ethernet, 10 Gig E, CWDM, ATM and SONET connections Flexible Platform

11 Presentation Name - 11 NORTEL NETWORKS CONFIDENTIAL Resilient Platform Power is Supplied here by up to 3 hot swappable AC or DC load sharing P.S.U.s Heat is removed here by 2 hot swappable cooling modules Packets are transported to the egress port here through 2 load sharing CPU/Switch Fabric modules Connections are made and packets are processed in hardware here by up to 8 I/O modules

12 Presentation Name - 12 NORTEL NETWORKS CONFIDENTIAL Scalable Platform Power NEBS CPU/Switch Fabric Sparing Option 3 Slot 6 Slot 10 Slot 10 Slot CO Cooling 10/ Gigabit

13 Presentation Name - 13 NORTEL NETWORKS CONFIDENTIAL Passport Architecture CPU/Switching Fabric Modules CPU Forwarding Table Processing FABRIC I/O Module Cross Connect CPU/Switching Fabric Modules CPU Forwarding Table Processing FABRIC I/O Module Cross Connect I/O Module ASIC Lookup & Packet Processing MEMORY Forwarding & Filtering Tables I/O Module ASIC Lookup & Packet Processing MEMORY Forwarding & Filtering Tables All Packet Processing occurs on the I/O Modules with lookup from in memory ensuring scalability and wire rate performance Custom ASICs (RAPTARU) per port perform Packet filtering, forwarding, routing, security & QoS functions All Packets take same path through shared memory switching fabrics to the egress port ensuring consistent low latency and jitter and unmatched multicast scaling

14 Presentation Name - 14 NORTEL NETWORKS CONFIDENTIAL Passport L2 Switching HA Mode –CPU mirroring ensures zero impact failure Distributed MLT –Link aggregation over multiple modules removes single point of failure. Split-MLT –Link aggregation used for network resiliency –Two switches act as one –All links active and passing traffic –No need for the additional complexity of multiple VLANs Outer Switches dual-homed using standard link aggregation protocols. Two Passport 8600s share forwarding tables and act as one through the IST. Split-MLT is the only mechanism that will protect sensitive applications like VOIP from network outages.

15 Presentation Name - 15 NORTEL NETWORKS CONFIDENTIAL Passport L3 Routing Routing Protocol Support –RIP1,2, OSPF and BGP4 VRRP Backup-Master –Simplifies network configuration –Better network utilization VRRP fast interval timers –Faster VRRP fail-over –Sub-second to match Split-MLT IP and IPX routing policies –Improved control of routes –Increase security and control. Backup-Master allows an 8600 that is in backup mode to route traffic A Single Gateway address is now balanced across both Passport 8600s. Backup-Master simplifies network design by balancing traffic and reducing the number of subnets/DHCP scopes.

16 Presentation Name - 16 NORTEL NETWORKS CONFIDENTIAL Passport L4-7 Application Switching Improved Network Utilization –Load balancing of IP applications –Server selection with Health-checking –Metering and controlling bandwidth usage Improved Performance –Appliance (Cache,SSL) redirection –Streaming media (Language splicing) –Providing fault tolerance Tighter Security –Network Address Translation –DoS Attack buffer –Processing traffic filters The Alteon Web Switching module brings Alteons market leading L4-7 capabilities to the Passport 8600.

17 Presentation Name - 17 NORTEL NETWORKS CONFIDENTIAL Passport Multicast Passport 8600 shared memory architecture is the basis of unequalled Multicast scaling and performance. PIM-SSM allows source specific multicast trees to be created, essential in mass multimedia (TV) applications. Fast join and leave capability improves stream setup time and reduces bandwidth. PIM-SSM acts like a static route for multicast. Fast join and leave allows selection of multicast stream just like TV channel hopping Shared memory architecture delivers superior multicast performance

18 Presentation Name - 18 NORTEL NETWORKS CONFIDENTIAL Passport QoS ASIC Based Flow Filters –Security –Wire Speed QoS Multi-level capabilities –Layer 2,3,4 and 7 –802.1p (L2) Granular Queuing –8 Hardware queues ensure application delivery Multi-media filters –Pre-set VOIP and Multi- media filters simplify QoS deployment. FCSIP-SATCP-PortDA SA DATA IP-DA XC Passport Xpress Classification performs wire- speed lookup and packet classification on a per port basis. With 8 hardware queues per port the Passport 8600 has QoS granularity for the most demanding environment.

19 Presentation Name - 19 NORTEL NETWORKS CONFIDENTIAL Passport Configuration Pick any starter pack. 3, 6 or 10 slot chassis 2. Add redundancy options Add additional power supplies Add a second switching fabric 3. Choose the I/O modules E or M Modules Ethernet 10/100, Gigabit and 10Gigabit ATM/SONET DS3, OC3 and OC12 Application Switching

20 Presentation Name - 20 NORTEL NETWORKS CONFIDENTIAL Passport Advantage High Availability –Industry leading reliability features deliver the only networking solution capable of protecting sensitive applications like VOIP form network outages. Operational Simplicity –The simplistic approach to network design and deployment with embedded intelligence further enhances reliability and at the same time reduces costs. Low Cost of Ownership –High Availability and Operational Simplicity combine to deliver the best platform for One Network and increased ROI for the business.

21 Presentation Name - 21 NORTEL NETWORKS CONFIDENTIAL

22 Campus LAN Solution

23 Presentation Name - 23 NORTEL NETWORKS CONFIDENTIAL Campus Architecture Access Layer PCs, Printers, etc. High Density 10/100 L2 Ethernet switching Aggregation Layer Consolidation point Mixture 10/100 & Gigabit L2/L3 Ethernet switching Core Nucleus, Servers, Metro High Density Gigabit L3 Routing Floor 1…………..Floor x Building Campus Design Issues At layer 2 these extra links need to be blocked to prevent network loops. This is usually implemented using a protocol called spanning tree (802.1d) Spanning tree protocol prevents these loops by deciding the best links to use and blocking all the rest. Basically youre paying for stuff you cant use !

24 Presentation Name - 24 NORTEL NETWORKS CONFIDENTIAL Spanning Tree Features Spanning Tree Protocol (STP) –Provides redundant paths and detects loops in L2 networks –Redundant links are activated after failure –Redundant links are not utilized for data traffic –Slow network convergence - minimum of 30 seconds –Fast L3 redundant protocols like VRRP and OSPF depend on slow STP convergence Spanning Tree Protocol - Proprietary Hacks and Fixes –Uplink Fast, Port Fast, Fast Start –Improves convergence time by seconds –Bandwidth is still wasted by blocked ports 802.1w Rapid Spanning Tree Protocol –Faster convergence, 5 seconds on failure –Same re-convergence, 30 seconds plus on repair –Same restriction on redundant links Spanning Tree will not protect applications

25 Presentation Name - 25 NORTEL NETWORKS CONFIDENTIAL S-MLT Link Aggregation Description –Split MLT makes the two core switches act as one at Layer 2 –Standard Link aggregation protocols used for network resiliency as well as bandwidth –Both Links are active, appear as one, with traffic balanced across all available links. Advantages –Less complex than spanning tree –Better bandwidth utilization –Faster Fail-over and recovery –Protects applications from outages –In service hitless upgrades Our Fresh approach to the spanning tree problem Maintains state of voice and video sessions through fail-over Extends reliability benefits to attached 3rd party switches through 802.3AD link aggregation

26 Presentation Name - 26 NORTEL NETWORKS CONFIDENTIAL Passport 8600 Campus 10 Slot chassis with 10/100 blades, configured as an L2 edge device with QoS enforced through Diffserv marking and hardware queuing 3 Slot chassis with SX Gig blades, configured as an L2 aggregator device with QoS enforced through Diffserv interrogation and hardware queuing 6 Slot chassis with mixture of SX Gig and 10/100 Gig blades, configured as an L2 edge device in the server farm. Intelligent content switching through WSM blade. 10 Slot chassis with mixture of SX and LX Gig blades, configured as an L3 core routing device with IP routing and QoS enforced through Diffserv interrogation and hardware queuing 10 Slot CO chassis with mixture of SX, LX and XD Gig, configured as on ramp to Service provider OE network.

27 NORTEL NETWORKS CONFIDENTIAL Low Cost Optical Metro Solution

28 Presentation Name - 28 NORTEL NETWORKS CONFIDENTIAL Metro Bandwidth Challenge New multimedia applications require more bandwidth –Multi channel Gigabit metro solution is the answer, but… –Normally this would require Multiple expensive leased fiber runs for resilience or Expensive and complex DWDM equipment to reduce fibers Challenge is to provide High bandwidth services, while…. Keeping leased fiber costs to a minimum Without wasting fibers (dead sparing) Maintaining reliability (Application state)

29 Presentation Name - 29 NORTEL NETWORKS CONFIDENTIAL 3 Part Metro Optical Solution 1. Colored GBICs in Switches –Standard interface –8 flavors Long reach (90km) 1. Optical MUX –Fiber Saver –Distributed 10 Gig Solution 1. Optical Add/Drop MUX –Splits Wavelength in two –Doubles the bandwidth 8 Gigs in One fiber Out Breakout one, pass the rest 16 Gigs On a Single Fiber

30 Presentation Name - 30 NORTEL NETWORKS CONFIDENTIAL CWDM Metro Design OADM OMUX 8600 Switch RED channel used for additional IST link to increase bandwidth and redundancy in a distributed POP environment. Gigabit channel bonded together with MLT for high bandwidth and faster fail-over 1 Gigabit East and 1 Gigabit West deliver resiliency Simple plug and play operation reduces deployment costs

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32 Backup Information

33 Presentation Name - 33 NORTEL NETWORKS CONFIDENTIAL Ethernet Modules Hot swappable Wire speed routing Gigabit connectivity with copper and fiber ModulePortsTypeDensity 8648TXE4810/100 BaseTX (RJ45) FXE24100 BaseFX (MT-RJ) SXE81000 BaseSX (SC) GBE81000 Base GBIC (GBIC) GTE81000 BaseTX (RJ-45) SXE BaseSX (MTRJ) TXE32+210/100 BaseTX (RJ-45)+GBIC256+16

34 Presentation Name - 34 NORTEL NETWORKS CONFIDENTIAL ATM and SONET Modules Hot Swappable RFC 1483 routed and bridged PVCs 512 PVCs per Module ModulePortsTypeDensity 8672 ATME2 MDAs 4 port OC-3 1 port OC OC-3s 4 OC-12s 8683 PoSE3 MDAs 2 port OC-3 1 port OC OC-3s 12 OC-12s

35 Presentation Name - 35 NORTEL NETWORKS CONFIDENTIAL Forwarding 1. Packet arrives Switch Fabric XC Memory To I/O card To CPU I/O Interface PowerPC CPU To I/O card I/O Module Switch Fabric/ CPU Module Queue Manager 2. Queue Manager sends packet header to XC 3. XC implements packet policy, sends packet to Queue Manager 4. Queue Manager sends packet to Switch Fabric 5. Switch fabric schedules packet forwarding into one of eight queues based on priority 6. Packet is sent to outbound I/O card and buffered if necessary Packet is transmitted on outbound interface This Entire Process Always Takes Less than 10uS

36 Presentation Name - 36 NORTEL NETWORKS CONFIDENTIAL Learning 1. Policy downloaded by CPU to all XCs at startup Switch Fabric XC Memory To I/O card To CPU I/O Interface PowerPC CPU To I/O card I/O Module Switch Fabric/ CPU Module 1 3 All updates performed out of band Queue Manager 2. Route/SPT updates and unknown addresses passed to CPU 3. CPU copies new information to all XCs simultaneously 2