Passport 8600 routing switch
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Passport 8600 Routing Switch. Release 3.3. Tactical Strategic. CIO’s Priorities. Do more with less Drive employee productivity with IT Use IT to grow revenues Use IT to anticipate customer requirements. Consistent customer experience everywhere. Business connectivity

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Passport 8600 routing switch

Passport 8600 Routing Switch

Release 3.3


Cio s priorities

Tactical Strategic

CIO’s Priorities

  • Do more with less

  • Drive employee productivity with IT

  • Use IT to grow revenues

  • Use IT to anticipate customer requirements


Needs of the future enterprise network

Consistent customer experience everywhere

Business connectivity

via the internet

Internet

Security for all

applications

and services

Storage and networking

at light speed

IP telephony succeeds

traditional telephony

Needs of the future enterprise network


Key requirements

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.


Applications drive infrastructure

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

  • Email

    • Sporadic bursts of traffic – varying size (attachments)

    • Bi-directional – client to server to client

    • Varying bandwidth - greedy, will take all available


Two tier infrastructure design

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.


What is required in a core switch

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


Passport 8600 routing switch1

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

Passport 8600 Routing Switch


Flexible platform

Flexible Platform

It fits in the wiring closet delivering high density (384) 10/100 Ethernet ports for user connections

It fits in the network center delivering high density (128) Gigabit Ethernet ports for aggregation, riser and MAN connections

It fits in the data center delivering high density L4-7 application switching for server selection & load balancing

It fits in MAN/WAN delivering Gigabit Ethernet, 10 Gig E, CWDM , ATM and SONET connections


Resilient platform

Connections are made and packets are processed in hardware here by up to 8 I/O modules

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

Power is Supplied here by up to 3 hot swappable AC or DC load sharing P.S.U.s

Resilient Platform


Scalable platform

Scalable Platform

Sparing Option 3 Slot 6 Slot 10 Slot 10 Slot CO

Power 

CPU/Switch Fabric 

Cooling 

NEBS 

10/100 96 192384384

Gigabit 32 64128128


Passport architecture

CPU/Switching Fabric Modules

CPU/Switching Fabric Modules

CPU

Forwarding Table Processing

CPU

Forwarding Table Processing

FABRIC

I/O Module Cross Connect

FABRIC

I/O Module Cross Connect

I/O Module

I/O Module

ASIC

Lookup & Packet Processing

ASIC

Lookup & Packet Processing

MEMORY

Forwarding & Filtering Tables

MEMORY

Forwarding & Filtering Tables

Passport Architecture

All Packets take same path through shared memory switching fabrics to the egress port ensuring consistent low latency and jitter and unmatched multicast scaling

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


Passport l2 switching

Passport L2 Switching

Outer Switches dual-homed using standard link aggregation protocols.

  • 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

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.”


Passport l3 routing

A Single Gateway address is now balanced across both Passport 8600s.

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

“Backup-Master simplifies network design by balancing traffic and reducing the number of subnets/DHCP scopes.”


Passport l4 7 application switching

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 Alteon’s market leading L4-7 capabilities to the Passport 8600.”


Passport multicast

PIM-SSM acts like a static route for multicast.

Passport Multicast

Shared memory architecture delivers superior multicast performance

  • 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.

Fast join and leave allows selection of multicast stream just like TV channel hopping


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.

DA

IP-SA

TCP-Port

DATA

FCS

SA

IP-DA

XC

“Passport Xpress Classification performs wire-speed lookup and packet classification on a per port basis.”

Passport QoS

“With 8 hardware queues per port the Passport 8600 has QoS granularity for the most demanding environment.”


Passport configuration 1 2 3

Passport Configuration 1 2 3

  • Pick any starter pack.

    • 3, 6 or 10 slot chassis

  • Add redundancy options

    • Add additional power supplies

    • Add a second switching fabric

  • Choose the I/O modules

    • ‘E’ or ‘M’ Modules

    • Ethernet 10/100, Gigabit and 10Gigabit

    • ATM/SONET DS3, OC3 and OC12

    • Application Switching


Passport advantage

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.


Campus lan solution

Campus LAN Solution


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

Campus Architecture

Floor 1…………..Floor x

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 you’re paying for stuff you can’t use !

Building

Campus


Spanning tree features

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 15-30 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


S mlt link aggregation

S-MLT Link Aggregation

Our Fresh approach to the spanning tree problem

“Extends reliability benefits to attached 3rd party switches through 802.3AD 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

“Maintains state of voice and video sessions through fail-over”


Passport 8600 campus

Passport 8600 Campus

3 Slot chassis with SX Gig blades, configured as an L2 aggregator device with 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.

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 chassis with 10/100 blades, configured as an L2 edge device with QoS enforced through Diffserv marking 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.


Low cost optical metro solution

Low Cost Optical Metro Solution


Metro bandwidth challenge

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)


3 part metro optical solution

16 Gigs On a Single Fiber

3 Part Metro Optical Solution

  • Colored GBICs in Switches

    • Standard interface

    • 8 ‘flavors’ Long reach (90km)

  • Optical MUX

    • Fiber Saver

    • Distributed 10 Gig Solution

  • Optical Add/Drop MUX

    • Splits Wavelength in two

    • Doubles the bandwidth

One fiber Out

8 Gigs in

Breakout one, pass the rest


Cwdm metro design

OADM

OADM

OADM

OMUX

OMUX

CWDM Metro Design

Gigabit channel bonded together with MLT for high bandwidth and faster fail-over

Switch

Switch

Switch

1 Gigabit East and 1 Gigabit West deliver resiliency

Simple plug and play operation reduces deployment costs

‘RED’ channel used for additional IST link to increase bandwidth and redundancy in a distributed POP environment.

8600

8600


Backup information

Backup Information


Ethernet modules

Ethernet Modules

  • Hot swappable

  • Wire speed routing

  • Gigabit connectivity with copper and fiber


Atm and sonet modules

ATM and SONET Modules

  • Hot Swappable

  • RFC 1483 routed and bridged PVCs

  • 512 PVCs per Module


Forwarding

To I/O card

To I/O card

To CPU

To I/O card

Forwarding

Switch Fabric/

CPU Module

1. Packet arrives

2. Queue Manager sends packet header to XC

Switch

Fabric

To I/O card

PowerPC

CPU

3. XC implements packet policy, sends packet to Queue Manager

To I/O card

5

4. Queue Manager sends packet to Switch Fabric

4

6

I/O Module

3

5. Switch fabric schedules packet forwarding into one of eight queues based on priority

XC

Queue

Manager

Memory

2

6. Packet is sent to outbound I/O card and buffered if necessary

1

7

I/O

Interface

7. Packet is transmitted on outbound interface

This Entire Process Always Takes Less than 10uS


Learning

To I/O card

To I/O card

To CPU

To I/O card

Memory

All updates performed

out of band

Learning

Switch Fabric/

CPU Module

1. Policy downloaded by CPU to all XCs at startup

Switch

Fabric

To I/O card

PowerPC

CPU

1

To I/O card

2. Route/SPT updates and unknown addresses passed to CPU

3

3. CPU copies new information to all XCs simultaneously

I/O Module

XC

Queue

Manager

2

I/O

Interface


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