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Passport 8600 Routing Switch

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Passport 8600 Routing Switch Release 3.3 Notes to Presenter This presentation is intended as a dual level presentation for both business level (CIO) and semi ... – PowerPoint PPT presentation

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Transcript and Presenter's Notes

Title: Passport 8600 Routing Switch


1
Passport 8600 Routing Switch
  • Release 3.3

2
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
CIOs Priorities
  • Do more with less
  • Drive employee productivity with IT
  • Use IT to grow revenues
  • Use IT to anticipate customer requirements

4
Needs of the future enterprise network
5
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
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

7
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
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
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
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
11
Resilient Platform
12
Scalable Platform
Sparing Option 3 Slot 6 Slot
10 Slot 10 Slot CO
Power ? ? ? ?
CPU/Switch Fabric ? ? ?
Cooling ? ?
NEBS ?
10/100 96 192 384 384
Gigabit 32 64 128 128
13
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
14
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.
15
Passport L3 Routing
A Single Gateway address is now balanced across
both Passport 8600s.
  • 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.
16
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
Passport Multicast
PIM-SSM acts like a static route for 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
18
Passport QoS
Passport Xpress Classification performs
wire-speed lookup and packet classification on a
per port basis.
  • 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.

With 8 hardware queues per port the Passport
8600 has QoS granularity for the most demanding
environment.
19
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

20
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
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22
Campus LAN Solution
23
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
youre paying for stuff you cant use !
Building
Campus
24
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
25
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
26
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.
27
Low Cost Optical Metro Solution
28
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
3 Part Metro Optical Solution
16 Gigs On a Single Fiber
  • 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
30
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
31
(No Transcript)
32
Backup Information
33
Ethernet Modules
  • Hot swappable
  • Wire speed routing
  • Gigabit connectivity with copper and fiber

Module Ports Type Density
8648TXE 48 10/100 BaseTX (RJ45) 384
8624FXE 24 100 BaseFX (MT-RJ) 192
8608SXE 8 1000 BaseSX (SC) 64
8608GBE 8 1000 Base GBIC (GBIC) 64
8608GTE 8 1000 BaseTX (RJ-45) 64
8616SXE 16 1000 BaseSX (MTRJ) 128
8632TXE 322 10/100 BaseTX (RJ-45)GBIC 25616
34
ATM and SONET Modules
  • Hot Swappable
  • RFC 1483 routed and bridged PVCs
  • 512 PVCs per Module

Module Ports Type Density
8672 ATME 2 MDAs 4 port OC-3 1 port OC-12 16 OC-3s 4 OC-12s
8683 PoSE 3 MDAs 2 port OC-3 1 port OC-12 24 OC-3s 12 OC-12s
35
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
6
4
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
36
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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