Business Policy Switch 2000

Business Policy Switch 2000Product Overview

Introducing the New…Business Policy Switch 2000Nortel Networks High Performance, High Density, Stackable , 10/100 +

1000 Mbps Quality of Service LAN EDGE Solution.

The Business Policy Switch Delivers:

• Industry Leading QoS Capabilities and Features

• Web Based Management

• Converged Media Support

• High Performance

• Fail-Safe Stackability

• Flexible High-Speed Uplinks

• Advanced Software Features

• Investment Protection

• Unmatched Price/Performance

First Customer Ship

August 23, 2000!!!

The Business Policy Switch – What is it?

• Stackable High Performance L2 switch with Hardware Based L3/L4 IP packet classification, prioritization, marking & Quality of Service capabilities

• 10/100 + 1000 Mbps Switch in a 24 Port configuration with 1 MDA port, and 1 cascade stack module port

• The Stackable High Performance Switching solution that integrates with Nortel Networks;

– BayStack 450 & 410s Switches to deliver Investment Protection– Business Communications Manager to provide toll quality IP telephony – Passport Routing Switches to support End-to-End Policy Enabled Network

What does the Business Policy Switch do for the network?

• Ensures connectivity and Network availability for mission critical devices, applications, users, and groups

• Classifies and Prioritizes IP Traffic so that QoS Policies can be easily implemented and traffic can be handled in the appropriate and specified manner

• Provides Advanced Web Based Management to BayStack switches in mixed switch stack environments

• Supports converged voice, video and data applications with Time Sensitive / Delay Intolerant IP Data in a reliable manner

• Maintains and keeps the characteristics of the network as predictable as possible via Traffic Shaping and Policing

= Dramatically Increases Network Performance & Reliability

Business Policy Switch Basic Configurations

Business Policy Switch 10/100 +1000 switch available in 24 Port configurations, with:

- one MDA slot (front)

- one cascade module slot (rear)

rear view (all units)

front view, Business Policy Switches

Cascade Stacking ModuleSupported Media Dependent Adapters (MDAs)

BPS2000-4TX 4-port 10BASE-T/100BASE-TX MDA

BPS2000-4FX 4-port 100BASE-FX MDA

BPS2000-2FX 2-port 100BASE-FX MDA

450-1SX 1-port 1000BASE-SX Single PHY MDA*

450-1SR 1-port 1000BASE-SX Redundant PHY MDA*

450-1LX 1-port 1000BASE-LX Single PHY MDA*

450-1LR 1-port 1000Base-LX Redundant PHY MDA*

BayStack 400-ST1 Cascade Module

* Note: BS 450 Gigabit MDAs will be supported but only utilize two hardware based queues

Business Policy Switch 2000 Key Product Features

Business Policy Switch Key Product Attributes• QoS and Policy Management

– Support for IETF standard DiffServ QoS Architecture– L3/L4 packet classification, prioritization and marking – 4 Hardware based priority or CoS output queues, weighted fair queuing

– Modification of TOS/Diffserv byte stack

• Web-Based Management– Agent provides HTML-based Management to BayStack 450/410 Switches as part of Business Policy

Switch Mixed Stack – Provides multiple ways to derive network and individual device information locally and remotely– QoS Wizard

• Robust Fail Safe Stacking Architecture and Resiliency Components

• The Business Policy Switch will seamlessly integrate with Nortel Networks :– BayStack 450 & 410s Switches to deliver Investment Protection– Business Communications Manager to provide toll quality IP telephony – Passport Routing Switches to support End-to-End Policy Enabled Network

Business Policy Switch Features and Benefits

• Features– DiffServ QoS Architecture

• Layer 3 & 4 Packet Classification, Prioritization and Marking

– Web Based Management– Fail Safe Stackability for affordable

10Mbps, flexible 10/100 autosense ports, and fiber 100 Mbps ports

– MultiLink Trunking across the stack– 3 million packets per second frame

forwarding– Advanced software features– Slot for Link Safe High Speed Uplinks

(MDAs) – Web & Policy Enabling Existing

BayStack 450/410(s)

• Benefits– Makes network more predictable and reliable

so that the network can provide better or “special” service to users/devices and applications

– Increased and Improved Manageability – High Density and Continuous network uptime

– Protects connections to mission-critical servers and the network center

– High-speed networking– Future-proofs the network– Flexibility to fit into any high-speed backbone

type– Backwards Compatibility and Investment

Protection

Business Policy Switch 2000 Quality of Service

Business Policy Switch IP Quality of Service (QoS) Primer

• QoS provides the ability to read , alter, prioritize and tag or mark IP traffic based upon information imbedded in Type of Service (ToS) field in the IP header as established by the IETF committee

• DiffServ is based upon Type of Service (ToS) field

• The Business Policy Switch employs a DSCP-to-802.1p mapping table via Hardware Based ASICs

• DiffServ used over IntServ due to superior scaling capabilities

• The ability to prioritize traffic allows for – Better voice quality when using IP telephony– Better quality streaming videos and video conferencing– The ability to offer levels of service based upon bandwidth allocation

Video Server Desktop I2004 IP PhoneFTP Server

DSCP CU

0 1 2 3 4 5 6 7

Differentiated Services Field

• DSCP Marking– Differentiated Services Codepoint, six bits of the DS field are used to select the PHB that packet

experiences at each node 64 possible code points

Differentiated Services Field (DS)

Drop Precedence Class 1 Class 2 Class 3 Class 4Low 001010 010010 011010 100010Medium 001100 010100 011100 100100High 001110 010110 011110 100110

1 0 1 1 1 0 CU

6 Bytes 6 Bytes 4 Bytes 2 Bytes 64-1500 Bytes

IP Header

Source MAC

802.1q Tag

Protocol Type

DataDestMAC

DiffServ Code Point is mapped to/from 802.1p User priorities

81 - 003 Priority

bitsCF VLAN ID

Queuing Function• The Business Policy Switch can read, alter and take action on the

DiffServ Code Point (DSCP) packet allowing for Per Hop Behavior (PHB) modification capability

• Prioritization established through packet classification or explicitly through:– 802.1p header– ToS / DSCP marking – MAC Source address and/or Destination address (future release)– IP SA/DA or subnet– TCP/UDP source/destination port, range (global filters only)– 802.1p priority, ingress port number, IP protocol ID (ex: TCP, UDP, IGMP), L3

protocols (IP, IPX)– VLAN ID

• Four hardware-based queues, Premium, Platinum, Silver and Standard, for Normal or Expedited classes of service per outbound port that classifies traffic based on priority

Service Type 1

Service Type 2

Service Type 3

Service Type 4

No Service Type

CLASSIFICATION SWITCHING SERVICING

I N G R E S S E G R E S S

MARKPACKET

MARK +POLICE

Business Policy Switch : Queuing and QoS

4

3

3

3

2

2

1

Voice &

Video

SAP

Web Surfing

MGMT

POLICEPACKET

MARKPACKET

Strict PriorityStrict Priority

Absolutely goesAbsolutely goes through!through!

Weighted Round RobinWeighted Round RobinQueues are serviced as Queues are serviced as

per the transmit opportunitiesper the transmit opportunitiesconfigured. Prevents configured. Prevents

starvation of low prioritystarvation of low priorityqueuequeue

FILTERING

LAN

PORTS

Web Request

App Server

Video Server

IP Phone

Premium (Priority 1)

Silver (Priority 3)

Standard (Priority 4)

Platinum (Priority 2)

OutgoingPORT

To Network

Core or

WAN Device

Per Hop Behaviors (PHBs)The Business Policy Switch supports the following PHBs packet-forwarding

“differentiated service” treatment to packets:– Expedited Forwarding (EF) – RFC 2598– Assured Forwarding (AF) – RFC 2597– Default Forwarding (DE) – RFC 2474– Class Selector (CS) to support legacy routers – RFC 2474

How does the Network Benefit?

• Network can be set up to classify and manage IP users, devices, applications according to their business value and priority

• Traffic can be shaped or smoothed out to minimize effects of bursts

• Traffic can be marked to designate lower-priority packets to be dropped in cases of high congestion

• Traffic can be policed, ensuring conformance to corporate policies

• Traffic is scheduled based on classification, through the priority queuing process

• Network handles IP traffic in a more reliable manner

Business Policy Switch 2000 Management

Web Management Business Policy Switch & BS450 / 410 Switches

• Web management supports BPS-only or hybrid/mixed stack with BS 450/410• Provides summary, configuration, fault, statistics, application, administration and

support pages for entire Stack ( Pure or Hybrid) • Set traffic prioritization and classification via Web-Based QoS Wizard and advanced

configuration tool• Real-time sampling provides up-to-date LED, stats info for stacked units• Web interface also allows for static configuration of numerous parameters of the

device

Existing Stack of BayStack 450 Switches

A Single Business Policy Switch in a BayStack 450 Stack

Built-in Network Management

• Simple Network Management Protocol (SNMP)

• Concurrent Remote Monitoring (RMON) on all ports

• Common Open Policy Support (COPS) – dynamically send and receive policy information

• Console Port

Other Network Management Support

• Device Manager / VLAN Manager (4.0.2)

• Optivity Policy Server (OPS 1.2)

• Optivity NMS(9.0.1)

• NCS(2.2) support

Network Management

QoS Policy Administration• Establishes methodology by which QoS policies are implemented

through network

• One method is user-configuration through the box– Business Policy Switch QoS Wizard– Advanced QoS Configurations

• Another method employs a server that makes the policy decisions– NCS provides GUI and allows the administrator to configure the policy

server– Policy server acts as policy decision point (PDP)– Policy Switch acts as a policy enforcement point (PEP) that takes

action on the packet based upon decision of PDP– COPS protocol or CLI is used to communicate policy information

between PDP and PEP

Administrator

Business Policy Switches Performance

• 3 Million packets per second frame forwarding rate

• 2.5 Gbps switching fabric backplane bandwidth

• 2.5 Gbps cascade bandwidth

• Designed for wire speed performance with no packet loss – 10/100 ports in the wiring closet with multiple and

flexible uplink options including Gigabit

Business Policy Switch Density and Scalability

• Start small and stack up to 8 , 24 port switches and MDAs as needed

• Scales up to 224 10/100 ports in a stack (using 4-port 10BASE-T/100BASE-TX MDAs)

• 2.5 Gigabit cascading bandwidth

• Stack is managed as a single entity, with a single IP address

• Up to 224 ports per stack

• Provides the wiring closet port density to enable desktop switching

Business Policy Switches: Resiliency• Fail-Safe Stackability

– Redundant, self-healing cascade stacking design

– Unlike 3Com & Intel stackable switches, Business Policy Switches have no single point of failure stack (non-matrix)

• Hot Swappable Switches

• Connector for Redundant Power Supply Unit (RPSU)

Rear view, showing fault-tolerant stack design

RPSU connector

Business Policy Switches: Resiliency

Rear view, showing fault-tolerant stack design

• Cascade cables loop stacking signals back at point of failure

• Integrity of the stack is maintained, even in the unlikely event of a switch unit failure

Business Policy Switches Multi-Link Trunking

• MultiLink Trunking Provides High Bandwidth and Fault Tolerance – Fail-over protection for uplink

MDAs with dual-PHY connections– Load-balancing, fault-tolerant

server homing for uninterrupted access to servers

– Load-balancing, fail-over protection for uninterrupted access to the network center

– Stack connections to servers and the network center is protected, even if a unit should fail

Dual homing to

local servers and

mission-critical

PCs with

multiple-port NICs

MultiLink Trunking to

Passport at the

network center

Business Policy Switch Virtual LAN (VLAN) Support

• Total of 64 VLANs per stack that can be:– 802.1Q VLAN ID – Port based – Protocol sensitive– MAC SA based– IP subnet based

• Shared and individual (for duplicate MAC address) VLAN learning is supported (SVL & IVL)

• Future software release can support up to 256 VLANs

Business Policy SwitchSecurity

• BaySecure – Authentication and Authorization Controls– Intrusion control and eavesdrop protection on a per port

basis– Grant or deny network access by MAC address– Auto MAC address detection

• Distributed Access List Security

• RADIUS

Unauthorized Unauthorized USERUSER

Security Filters

Business Policy Switch: Feature Summary

• Web Management (supports 460/450/410 stack)

• Packet Classification based upon multiple fields

• Multiple action list (based on single and multi-field classifiers

• Diffserv support, priority queues

• Filter traffic

• Subnet-based VLANs

• MAC address-based VLANs

• Distributed MLT

• COPS client support

• Device Manager and VLAN Mgr

• Conversation steering/port mirroring

• Auto topology

• IVL & SVL support

• Network Config. System (NCS) support

• Optivity NMS (OIT) support

• Radius authentication for switch management

• BaySecure for MAC address-based security

• 12K total address support

• 802.1q tagging on every port

• 4 groups RMON on every port

• RPSU support

• IGMP Snooping and proxy support

• 64 VLANs

Business Policy Switch Applications & Solution Scenarios

Business Policy Switch Deployment Options

#1)

#2)

#3)

Stand Alone BPS

BPS / BayStack Mixed or Hybrid Stack

BPS Only Stack

Nortel Networks SMB Business Series IP Telephony Solution

The Business Series Portfolio solution includes the Business Communications Manager and the Business Policy Switch and prioritizes and classifies IP traffic to increase network performance and reliability. This allows SMB companies to provide:

– Guaranteed Bandwidth for Mission Critical Applications ( ie: Voice, E-Biz Servers)

– Toll quality voice on your IP network– Preferential or different levels of treatment for

those applications, devices and users that are competing for network resources

Business Series

Digital Phones

Business Communications Manager

i2004 IP Phones

Business Policy Switch-24T

Web & Policy Enabling Existing BayStack 450 Installations

DesktopSwitching

Existing stack of BayStack 450 Switches

Redundant MultiLinkTrunking across stackfor multi-Gigabit, loadbalancing connectivity

Exi

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Add A Single Business Policy Switch toan existing stack of BayStack 450 Switches

Passport Switch

Layer 3 / 4 forwarding improved with the addition of the Policy Switch

Business Policy Switch

Layer 3/4 classification, Diffserv/ 802.1p marking and

traffic prioritization for packets going through the egress

uplink ports of the Business Policy Switch

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Server Farm

Server Farm

DesktopSwitching

New Business Policy Switch Installations

Stack of Policy Switches with Advanced QoS Capabilities on every Port

Passport Layer 3 forwarding improved inwith Policy Switch handling layer 3/4 packetclassification

Stack of 5 Policy Switch Switches

Layer 3/4 classification at wire speed on all Portsof up to 8 BusinessPolicy Switch

Redundant MultiLinkTrunking across stackfor multi-Gigabit, loadbalancing connectivity

Passport Switch

DesktopSwitching

Server Farm

Building Blocks for Distributed IP TelephonyCall Servers, IP Telephones, Gateways, Applications

Internet Telephones

Application/Feature Servers

PSTN

PC/Fax

IP Network

ConnectionConnection ManagerManager

Core Switching CallPilotCallPilot

IP PBXIP PBX

ManagementManagement

Gateway

IP Phones

IP Phones

IP PhonesBusiness Series

Digital Phones

PSTN

IP PhonesBusiness Policy Switch

Business Policy

Switches

Business Policy Switches

Business Communications Manager

IP Network

CallPilotCallPilot

ManagementManagement

GatewayGateway

Video FeatureVideo FeatureServerServer

Core Routing Core Routing or Switchingor Switching

ConnectionConnectionManagerManager

Media ServerMedia Server

PSTNPSTN

Building Blocks: Video Architecture

Business Policy Switches

Business Policy Switches

IP Phones

IP Phones

Servers PC/ Work Stations

Business Policy Switches

IP Network

Business Series

Digital Phones

Nortel Networks End to End QoSBPS / Passport Enabled Network

Passport 8600

Passport 8600

Passport 8600

Passport 8600

Passport 1200Passport 700

Server Farm

BPS Stack

BPS / BS 450s Stack

Passport 8100

Gigabit Ethernet

Gigabit Ethernet

Gigabit Ethernet

BPS Stack

BPS/BS 450 Stack

Multi-Link Trunks

Multi-Link Trunk

Multi-Link Trunks

Multi-Link Trunks

Business Policy Switches

Passport 8600Routing Switch

Optivity Policy Services& Management

PSTN

End Station can set802.1p or DSCP field

1

Edge Switch Reads,(RE)Marks, or validates DSCP using Policy Server

2

Policy Server gets filterfrom database

3

Core / Edge Switches police, shape and forward classified frames

6

4Policy Server communicatesfilter and queuing rules usingCOPS

Unified Management for End-to- End Policy Services

5 Core & Edge Switch Re-Marks or Changes DSCP

2Edge Switch Reads, (Re)Marks, or validates DSCP using Policy Server

Passport 8600Routing Switch

BCM & Business Policy Switch

BCM + Business Policy Switch

Nortel Networks LAN SwitchesP

ric

e

Feature/Function

Economical Standalone Switching

High-Performance Standalone Switching

High-Performance StackableSwitching

BayStack 70-8T

BayStack 70-16T

BayStack 70-24T

BayStack 350-12T

BayStack 350-24T

BayStack 410-24T

BayStack 450-12T

BayStack 450-24T

BayStack 310-24T

Business Policy Switch

Nortel NetworksBusiness Series Portfolio• Nortel Networks

Business Communications Manager– Provides choice:

• Advanced IP Telephony • Traditional telephone

communications

• Nortel Networks Business Policy Switch– Prioritizes voice and data

traffic– Ensures mission-critical

quality

The Total Internet TelephonySolution Package for SMB

Business Series

Digital Phones

Business Communications Manager

i2004 IP Phones

Business Policy Switch-24T

Workgroup 10/100+1000 Evolution: BayStack 350 ,450, Business Policy Switch & Passport

BayStack 450-24T 2 Gbps full-duplex

BayStack 350

200 Mbps full-duplex

BayStack450 stack

BayStack 350 Switch

Multi- Gigabit MultiLink Trunks

Passport Switch Passport Switch

BayStack 350 Switch

MultiLink Trunks

Passport Switch Passport Switch

MultiLink Trunks

BayStack450 stack

BusinessPolicy SwitchStack

BusinessPolicy Switch

Business Policy Switches

200 Mbps full-duplex 200 Mbps full-duplex

Enterprise Campus PortfolioDelivering the HPA Infrastructure

Passport 8100 Edge Switch LAN Edge

Passport 1000 Routing Switch Network Center

Passport 700 Server Switch Intranet Content servicesSecure eCommerce services

Passport 8600 Routing Switch LAN Core

Centillion 50/100 ATM Edge Switch

Optera MetroMAN Edge

Centillion 1000 ATM Core SwitchBusiness Policy Switch

LAN Edge SwitchesBayStack 450 LAN Edge Switches

Business Policy Switch

Competitive Analysis

Business Policy Switches Competitive Comparison

Business Policy Switch

2000-24T

Cisco Catalyst

3524 PWR XL

Extreme

Summit 24

Foundry FastIron

Workgroup Switch

List Price 3,499 3,999 N/A N/A

# port per unit 24 24 24 24

Stackability Yes Yes No No

Max. Port 224 216 N/A N/A

Switch Backplane 2.5 Gbps 4 Gbps 8.5 Gbps 4.2 Gbps

Cascade Module Yes No No No

Stacking Bandwidth 2.5 Gbps 1 Gbps 1 Gbps 1 Gbps

DiffServ/TOS Marking Yes No No No

802.1p / 802.1q Yes Yes Yes Yes

Layer 3 / 4 Classification, Prioritization

Yes No Yes* No

Hardware-Based Queues 4 2 2 2

Mac Addresses 16,000 8,192 128,000 4,000

VLAN Support Yes Yes Yes Yes

IGMP Snooping Yes Proprietary No Yes

Gigabit Ethernet Yes Yes Yes Yes

Forwarding Performance 3 million pps 7.5 million pps

5 million pps

N/A

InLine PWR No* Yes No No

Business Policy Switch:Competitive Silver Bullets

• Advanced QoS and Policy Management Capabilities ( Hardware Based)

• Web-Based Management

• Robust Fail Safe Stacking Architecture and Resiliency Components– Delivers TRUE STACKABILITY with 2.5 Gbps Stacking Bandwidth

• The Business Policy Switch will seamlessly integrate with Nortel Networks :

– BayStack 450 & 410s Switches to deliver Investment Protection– Business Communications Manager to provide toll quality IP telephony – Passport Routing Switches to support End-to-End Policy Enabled Network

Understanding Quality of Service?

Understanding the Problem

• What if:– Your salespeople and partners

can’t submit their orders efficiently…

– The Network wasn’t available when you had a urgent deadline…

– Email and Intranet traffic threatened your online Web-transactions…

– Voice and video can’t be deployed reliably…

“…By 2000, 20% of all enterprise networks mission critical applications will experience severe performance problems…”

Gartner Group

Productivity Loss Due to Application Downtime

“Congestion – Related performance degradation has been found to cause the

majority of network downtime costs”

Infonetics Research

Equipment Failure

31%

Network & Server Congestion

69%

Web Server

NetMeeting Server

NetMeeting

Priority Service

Quality of Service is . . .

The ability of the network to provide better or “special” service to

users/devices and applications

Consistent, Reliable, Consistent, Reliable, Predictable PerformancePredictable Performance

VoiceVoice VideoVideo DataData

Financials

Request denied

Resources checked

Oracle

SAP Server

Order Entry

Finance

Engineering

Requestgranted

PolicyManagement

Policy Server

Networks

Intelligent

Quality of Service is . . .An architecture that delivers availability, reliability, performance and predictability

Quality of Service or Class of Service? • Can’t be exclusive of one another

• “Quality of Service” has a broad definition– It is a measurement of how well a network behaves– It includes categorizing a particular connection or flow

• “Class of Service” has a more granular definition– It implies the categorization of services into distinct classes that

can be treated individually, relative to each other

• The interpretation of either term can depend on the priorities of the service provider, network manager, or the end user– Predictable network characteristics or preferential traffic treatment?

Levels of Quality of Service

• Guaranteed Services– Provides circuit-switch-like services– Reserves or guarantees necessary bandwidth

• Tiered Services– Provides traffic prioritization by separating traffic by criticality– Treat important traffic better; less important traffic worse– High probability traffic will get through but with no “guarantees”

• Best Effort– “What you see is what you get”– Needs bandwidth

Why Should a Network Have QoS?

• Critical business transactions and applications run over the network infrastructure

• Deploy converged voice, video and data applications in a reliable and cost effective manner

• Bandwidth is not an unlimited or inexpensive resource

• There will always be places in your network where there is congestion

• Over-engineering is costly and over-subscription inevitably leads to poor network performance

• Ensure network availability for mission critical applications, devices, and users

• Optimize network resources and reduce overall IT costs

What is driving QoS in today’s networks? Management

Partners, Suppliers

Consumers

Employees

LegacyApplications

Virtual / Remote Agents

A Networked Economy

Mission Critical Applications

Video

Telephony

Custom In-house

BusinessApplications

Database

Groupware

Mail

Web

Quality of Service:The Application Requirement

Quality of Service

2nd Wave NETWORKS

BUSINESS DRIVERSA

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The 2nd Wave of e-Business Drivers

Intranet Extranet

Internet

E-Business