Business Policy Switch 2000. Business Policy Switch 2000 Product Overview.
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Transcript of Business Policy Switch 2000. Business Policy Switch 2000 Product Overview.
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
sin
g S
tack
o
f B
ayS
tack
45
0 S
witc
he
s
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
Sta
ck o
f B
ayS
tack
45
0 S
witc
he
s
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
Web
Quality of Service:The Application Requirement
Quality of Service
2nd Wave NETWORKS
BUSINESS DRIVERSA
PP
LIC
AT
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FF
IC
GR
OW
TH
BU
SIN
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SC
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The 2nd Wave of e-Business Drivers
Intranet Extranet
Internet
E-Business