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Old 17-05-19, 10:51 AM
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Kei Kei is offline
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Join Date: Apr 2013
Location: South Wales
Posts: 492
Just done this myself. I stayed away from copper and stuck with fibre. It can be done dirt cheap using OM3 multimode and the good news is that unlike copper, Fibre is perfectly capable of 40 and 100Gbps upgrades in the future so the infrastructure doesn't need to change. It is also nowhere near as distance limited. Fibrestore (FS.com) are really cheap and excellent quality. Direct attech copper (DAC or Twinax) is even cheaper but obviously limited by distance.

Mikrotik make some very cheap managed switches with multiple SFP+ ports for 10Gbe.
CRS305-1G-4S+IN = 4x 10Gbe + 1x 1Gbe = £120
CRS309-1G-8S+IN = 8x 10Gbe + 1x 1Gbe = £210
CRS317-1G-16S+RM = 16x 10Gbe + 1x 1Gbe = £310

There is also a TP-link that's pretty well regarded.
TP-LINK T1700G-28TQ = 24x 1Gbe + 4x 10Gbe = £250

SFP+ network cards can be had dirt cheap, particularly those that are OEM branded by Dell, IBM, HP, oracle and so forth. They are also mostly dual port so could be LAGed to certain devices to nearly double the bandwidth to 20Gbe.
Mellanox Connect-X 2 = £30-40
Chelsio N320 = £30-40
Solarflare SFN5122F - £30-50
Solarflare SFN6122F - £40-60
Solarflare SFN7122F - £50-80
Mellanox Connect-X 3 = £50-80
Intel X520 = £70-100
Chelsio T520 = £100-150
Intel X710 = £120-150

The way I went:
Juniper EX3300-24P - £360 - new open box
Intel X710 x2 - £250 - I could have gone much cheaper here but I wanted a current model PCIe 3.0 card
SFP's x6 - £90
Fibres x3 - £17 (2m @ £3, 10m @ £6 & 15m @ £8)

If I ever need to expand the 10G section, I can get an 8 port SFP+ swtich and LAG two ports from the juniper.
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