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WorldCom. MCC. Manc. SJ4 Dev C-PoP Warrington 12416. Leeds. UCL. ULCC. SuperJANET4 Production Network. Gigabit Ethernet 2.5 Gbit POS 2.5 Gbit POS core. SJ4 Dev C-PoP London 12416. SJ4 Dev C-PoP Reading 12416. WorldCom. Dark Fibre (SSE). RAL / UKERNA. RAL / UKERNA.

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Mb ng superjanet4 development network

WorldCom

MCC

Manc

SJ4 Dev

C-PoP

Warrington

12416

Leeds

UCL

ULCC

SuperJANET4

Production

Network

Gigabit Ethernet

2.5 Gbit POS

2.5 Gbit POS core

SJ4 Dev

C-PoP

London

12416

SJ4 Dev

C-PoP

Reading

12416

WorldCom

Dark Fibre (SSE)

RAL /

UKERNA

RAL /

UKERNA

MB – NG SuperJANET4 Development Network

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


Some edge bbone router requirements
Some Edge (Bbone) Router requirements

  • Connect to the test systems in the IP domain.

  • Accept marked packets and be able to re-mark them

  • Mark the packets on input according to at least:

    • Source – dest IP address IP port

    • Layer3 and Layer4 headers TCP/UDP

    • Support Diffserve code points

  • Perform policing and admission control

  • Provide a range of Queue type options –

    • Several queues with different priorities

    • Real-time queue

  • Provide flexible Queue Scheduling

    • Weighted round robin

    • Weighted fair queuing

  • Provide Congestion control such as

    • RED

    • ECN

  • Be able to assign MPLS labels to the packets in a flexible manner.

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


Equipment for the external edge domains functionality

Gigabit Ethernet

2.5 Gbit POS

2.5 Gbit POS core

Generate MPLS frames

QoS – WRED

MPLS

Classify packets

QoS Difserv

MPLS

Multi-loop

Load PC

Test PC

Test PC

4 * 1 Gigabit Ethernet blade

MPLS

4 * 1 Gigabit Ethernet blade

QoS Marking

Test PC

10 Gbit POS

Load PC

Test PC

Load PC

Test PC

3 * 1 Gigabit Ethernet blade

2.5 Gbit POS

MPLS

2.5 Gbit POS

MPLS

10 Gbit POS

Load PC

Supervisor

Supervisor

Load PC

IP or

MPLS

SJDN Core

MPLS Backbone Router 12416

Difserve router

OR

MPLS Edge Router

MPLS Backbone Router OSR

Equipment for the External / Edge DomainsFunctionality

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


Equipment for the external edge domains connectivity

Monitor PC

3508

Ethernet Switch 3512

Ethernet Switch 3512

Local site Ethernet

Local site Ethernet

Equipment for the External / Edge DomainsConnectivity

Gigabit Ethernet

2.5 Gbit POS

2.5 GbitPOS core

Spy

Load PC

Test PC

Test PC

4 * 1 Gigabit Ethernet blade

MPLS

4 * 1 Gigabit Ethernet blade

QoS Marking

Test PC

Test PC

Load PC

MPLS to core

2.5 Gbit POS

MPLS

Load PC

Supervisor

Supervisor

Load PC

Difserve router

OR

MPLS Edge Router

MPLS Backbone Router OSR

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


Ip access to mb ng systems a suggestion only we all must decide
IP Access to MB-NG SystemsA suggestion only – we all must decide !

  • End/Test systems routing:

    • The default route from the PC is set to the Gigabit link i.e. into the development network.

    • Static routes for researchers only are set for the 100 Mbit interface, e.g. to Manchester HEP, MCC, RAL, UCL, ULCC, UKERNA.

    • The link between the Cisco 3512 and the Campus is set to 10 Mbit – this would minimise any unintentional traffic.

  • IP access to core routers for researchers only

    • Similar approach? via the test PCs at the CPoP

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


Some questions
Some Questions ???

  • Can one Gigabit Ethernet blade perform the IP and MPLS functions we need or do we require two cards – one for IP input functions, the other for MPLS output?

  •  What is the performance of the 4-port Gigabit Ethernet interfaces?

  • Confirm that an interface can support both IP and MPLS frames at same time.

  • Can the GSRs use MPLS to loop the frames round n times?

  • Can all our “requirements be” met?

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


Focus on the routers - Hardware

  • Cisco OSR based on 6500 Are the details correct ?

More memory

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


Focus on the routers summary
Focus on the routers - Summary

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


Hardware software tools

High Bandwidth High Throughput Protocol Investigations (mainly)

EthernetSwitch

3508

Test PC

4 * 1 Gigabit Ethernet blade

Monitor port

Monitor PC

NIC

2.5 Gbit POS

Test PC

4 * 1 Gigabit Ethernet blade

Monitor PC

NIC

NIC

2.5 Gbit POS

Hardware & Software Tools

  • Optical splitter or opto-electrical tap

  • opto-electrical tap constructed for logic analyser

  • Software use of :

  • tcpdump tcptrace

  • Web100

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


Latency tests with 64 bit pci
Latency Tests with 64-bit PCI (mainly)

  • Alteon Gigabit NIC + RAW

  • SuperMicro 370DLE

    • ServerWorks III LE Chipset

    • 64 bit PCI @ 33 MHz

  • Request – Response

  • Transfer rates:

    observe expect us/B

    32+32 bit 0.0265 0.0232

    -> 108Mbyte/s

    32+64 bit 0.0209 0.0211

    64+64 bit 0.0149 0.0156

64 byte Request

1400 byte Response

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


Throughput tests with 64 bit pci

RAW Stream (mainly)

Not using IP stack

Vary time between packets

1.6 factor improvement over 32-32 bit transfers

Throughput Tests with 64-bit PCI

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


Throughput tests udp syskonnect

UDP Stream (mainly)

Vary time between packets

660-690 Mbit/s @ 17us

No interrupt coalescing

15 μs between packets

Throughput Tests UDP SysKonnect

1400 byte sent

1400 byte received

Pci-pci latency 28.3 μs

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


Latency tests udp syskonnect

UDP request - response (mainly)

Latency and transfer rates very similar to raw frames

observe us/B offset us

64+64 bit 0.0225 46.88

64+64 bit 0.0149 54.

(raw)

Latency Tests UDP SysKonnect

1400 byte sent

10.66 μs pci time

1400 byte received

10.96 μs pci time

Pci-pci latency 28.3 μs

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


Throughput tests udp alteon

UDP Stream (mainly)

Vary time between packets

880-930 Mbit/s @ 11us

interrupt coalescing

15 μs between packets

Throughput Tests UDP Alteon

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


Latency tests udp alteon

UDP request – response (mainly)

Due to interrupt coalescing

Latency Tests UDP Alteon

MB-NG Meeting Dec 2001

R. Hughes-Jones Manchester


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