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HP Switch requirement.

Posted on 2014-04-15
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Dear Experts,
I need to understand the attached BOQ from supplier. My requirement it to connect 2 core switch (Active-Active) with three access switch. The whole environment is connected with 1 GB Uplink.
Thanks and Regards.
HP-Switch-BOQ.xlsx
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Question by:ibu1
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Expert Comment

by:TimotiSt
ID: 40004495
Looks reasonable to me (without actually knowing your plans):
- 2 core switches
- 2 redundant power supplies for the core switches
- 8 GigE copper transceivers (I'm guessing for uplink connectivity)
- 14 fiber transceivers (I'm assuming switch-to-switch from the numbers)
- support for core
- 3 access switches
- support for access switches

Tamas
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by:ibu1
ID: 40004942
Thanks for the reply.
Please look at the attached rough diagram. I have doubt that my connectivity between the whole environment is 1 GB and why in BOQ I receive the fiber transceiver as they are capable of 10 gb.
Regards.
HP-Switch-Diag.pdf
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Expert Comment

by:TimotiSt
ID: 40004950
If you connect the 2 core switches on fiber, the 14 transceivers add up for the 7 links.
The 3800 only supports SFP+ for the 10Gig uplinks, your quoted transceivers are SFP only, capable of 1Gig:
http://h18004.www1.hp.com/products/quickspecs/12280_div/12280_div.pdf
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by:ibu1
ID: 40004965
I really have a doubt about how can these 14 transceiver can be used. Can you please prepare a rough diagram for me.
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TimotiSt earned 2000 total points
ID: 40004984
Your diagram is perfect:
- you have 7 links between switches (blue lines),
- each link has 2 ends,
- 2*7=14.

So you'll have 2 SFP's in each access switch, and 4-4 in each core switch.

If the 2 core switches are close to each other (same rack), you could swap that link from fiber to copper.
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by:ibu1
ID: 40005154
For that 14 transceiver I understood but how these 8 (J8177C HP X121 1G SFP RJ45 T )Transceiver are going to connect.
Thanks.
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Expert Comment

by:TimotiSt
ID: 40005478
- 8 GigE copper transceivers (I'm guessing for uplink connectivity)

I don't have any information about your uplinks, I'm assuming those were planned towards your firewall/router cluster, potential servers, etc.. A redundant link towards a firewall cluster would need 2 or 4, for a fairly usual setup, but again, I'm just guessing that part.
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by:ibu1
ID: 40006309
OK, the remaining 8 Transceiver is for some more uplink to connect HP VC Flex 10 Ethernet module.
Thanks for your help.
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