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New Member

C6509 Distributed Architecture

Cheers,

a customer of ours asked to proposed them a solution that will support Distributed Architecture...

I would appreciate if you could advice which is the recommended configuration (scenario) we have to propose.

SCENARIO A

===========

CORE SWITCH CONFIGURATION

--------------------------

WS-C6509 Cat 6509 Chassis, 9slot, 15RU, No Pow Supply, No Fan Tray

WS-CAC-2500W Catalyst 6000 2500W AC Power Supply

WS-CAC-2500W/2 Catalyst 6000 Second 2500W AC Power

WS-X6K-S2-MSFC2 Catalyst 6500 Supervisor Engine-2, 2GE, plus MSFC-2 / PFC-2

WS-X6500-SFM2 Catalyst 6500 Switch Fabric Module 2

WS-X6148-RJ-45 Catalyst 6500 48-Port 10/100, Upgradable to Voice, RJ-45

WS-X6516A-GBIC Catalyst 6500 16-port GigE Mod, fabric-enabled (Req. GBICs)

WS-X6148-GE-TX Catalyst 6500 48-port 10/100/1000 GE Mod., RJ-45

WS-G5484 1000BASE-SX Short Wavelength GBIC (Multimode only)

MEM-S2-128MB Catalyst 6000 Sup2 Mem, 128MB DRAM Option

MEM-MSFC2-128MB= Catalyst 6000 MSFC-2 Mem, 128MB DRAM Option

FLOOR SWITCH CONFIGURATION

--------------------------

WS-C6509 Cat 6509 Chassis, 9slot, 15RU, No Pow Supply, No Fan Tray

WS-C6K-9SLOT-FAN2 Catalyst 6509 High Speed Fan Tray

WS-CAC-2500W Catalyst 6000 2500W AC Power Supply

WS-CAC-2500W/2 Catalyst 6000 Second 2500W AC Power

WS-X6K-S2-MSFC2 Catalyst 6500 Supervisor Engine-2, 2GE, plus MSFC-2 / PFC-2

WS-X6500-SFM2 Catalyst 6500 Switch Fabric Module 2

WS-X6148-RJ-45 Catalyst 6500 48-Port 10/100, Upgradable to Voice, RJ-45

WS-X6408A-GBIC Catalyst 6000 8-port GE, Enhanced QoS (Req. GBICs)

WS-G5484 1000BASE-SX Short Wavelength GBIC (Multimode only)

MEM-S2-128MB Catalyst 6000 Sup2 Mem, 128MB DRAM Option

MEM-MSFC2-128MB= Catalyst 6000 MSFC-2 Mem, 128MB DRAM Option

SCENARIO B

===========

CORE SWITCH CONFIGURATION

--------------------------

WS-C6509-1300AC= Catalyst 6509 Chassis w/ 1300W AC Power Supply

WS-CAC-1300W/2 Catalyst 6000 Second 1300W AC Power Supply

WS-X6K-S2-MSFC2 Catalyst 6500 Supervisor Engine-2, 2GE, plus MSFC-2 / PFC-2

WS-X6500-SFM2 Catalyst 6500 Switch Fabric Module 2

WS-X6516-GE-TX Catalyst 6500 16-port Gig/Copper Module, x-bar

WS-F6K-DFC Distributed Forwarding Card

WS-X6548-RJ-45 Catalyst 6500 48-port 10/100, RJ-45, x-bar

WS-F6K-DFC Distributed Forwarding Card

WS-X6516A-GBIC Catalyst 6500 16-port GigE Mod, fabric-enabled (Req. GBICs)

WS-F6K-DFC Distributed Forwarding Card

WS-G5484 1000BASE-SX Short Wavelength GBIC (Multimode only)

MEM-S2-128MB Catalyst 6000 Sup2 Mem, 128MB DRAM Option

MEM-MSFC2-128MB= Catalyst 6000 MSFC-2 Mem, 128MB DRAM Option

FLOOR SWITCH CONFIGURATION

--------------------------

WS-C6509-1300AC= Catalyst 6509 Chassis w/ 1300W AC Power Supply

WS-CAC-1300W/2 Catalyst 6000 Second 1300W AC Power Supply

WS-X6K-S2-MSFC2 Catalyst 6500 Supervisor Engine-2, 2GE, plus MSFC-2 / PFC-2

WS-X6500-SFM2 Catalyst 6500 Switch Fabric Module 2

WS-X6548-RJ-45 Catalyst 6500 48-port 10/100, RJ-45, x-bar

WS-F6K-DFC Distributed Forwarding Card

WS-X6516A-GBIC Catalyst 6500 16-port GigE Mod, fabric-enabled (Req. GBICs)

WS-F6K-DFC Distributed Forwarding Card

WS-G5484 1000BASE-SX Short Wavelength GBIC (Multimode only)

MEM-S2-128MB Catalyst 6000 Sup2 Mem, 128MB DRAM Option

MEM-MSFC2-128MB= Catalyst 6000 MSFC-2 Mem, 128MB DRAM Option

Are you aware of any techical paper documenting the advantages (Availiability, Performance etc) of a distributed architecture configuration?

Is there a generic methodology/guideline that I could use to calculate the system availiability of a C6509 system?

Thanks in advance

TG

3 REPLIES
Bronze

Re: C6509 Distributed Architecture

By saying "Distributed" do you mean the 6509 line modules will run with the DFC? You don't have DFCs in scenario A.

Also, if you have a 6509 and are using a Sup2 and SFM, you might want to look at the Sup720. It's not much more than the Sup2+SFM and included the SFM functionality onboard and save you a slot. The only thing is, if you use the Sup720, you have to use the DFC3 card if you want to take advantage of the DFC technology which adds some to the cost.

I'd also think about 2500 watt power supplies for use with the sup2 and 4000 watt power supplies for use with the sup720.

Some good Cat6500 info:

http://www.cisco.com/en/US/products/hw/switches/ps708/index.html

There you can read about each supervisor engine and line cards...

New Member

Re: C6509 Distributed Architecture

Appreciate your response...

The customer is asking fot "Distributed Architecture" in order to eliminate single points of failures.

In scenario A we have not included DFCs (they are not supported by the "classi" line cards).

Considering the above... do you believe we have to reject Scenario A and proceed with Scenario B.

In that case what happens if Sup 2 or SFM 2 goes down?

Do we have to add redundant components?

Thanks

TG

New Member

Re: C6509 Distributed Architecture

TG,

DFC is for accelearting packet perfomanc but not to avoid single point failure against MSFC or RP failure. Correct match for DFC is Distribute packet perfoamnce daughter board, please note it is useless without a master like MSFC2/PFC2..PFC2 pushes master FIB (CEF Forwarding Information Base) to DFCs in line cards.

Please refer to best practices for Gigabit ethernet networks on CCO.

If your customer wants to avoid single point failure(I assume it is core switch)....Consider using 2 chassis with single Sup/MSFC,SFM and PS or a sinlge chassis with redundant Sup/MSFC,PS and SFM.

Please note DFC cant avoid single point failure. It is just a packet forwardig accelerator.

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