nanog mailing list archives
Re: PCIe adapters supporting long distance 10GB fiber?
From: Baldur Norddahl <baldur.norddahl () gmail com>
Date: Tue, 20 Jun 2017 21:07:21 +0200
I would expect anything mounted in a computer to have all the power you could want. It is not like the ATX power supply cares about an extra watt or two. As I understand the issue it is more about cooling than power and is primarly a concern in high density switches were you could have 48 or more to power and cool. Den 20. jun. 2017 18.09 skrev "Denys Fedoryshchenko" <denys () visp net lb>:
I guess it depends on NIC, there is many spinoffs of Intel X520 with much weaker power supply circuitry. It might work with good NIC, but you can't rely on it on long term, IMHO. Even 40km Finisar SFP+ has Pdiss 1.5W. Also they mention: "The typical power consumption of the FTLX1672D3BTL may exceed the limit of 1.5W specified for the Power Level II transceivers" If we talk about 80km, Pdiss is 1.8W. While 10GBASE-LR is <1W On 2017-06-20 16:30, Max Tulyev wrote:We use Intel NICs with SFP+ holes. It works good with long and short range SFP+ modules, including CWDM/DWDM. On 15.06.17 12:10, chiel wrote:Hello, We are deploying more and more server based routers (based on BSD). We have now come to the point where we need to have 10GB uplinks one these devices and I prefer to plug in a long range 10GB fiber straight into the server without it going first into a router/switch from vendor x. It seems to me that all the 10GB PCIe cards only support either copper 10GBASE-T, short range 10GBASE-SR or the 10 Km 10GBASE-LR (but only very few). Are there any PCIe cards that support 10GBASE-ER and 10GBASE-ZR? I can't seem to find any. Chiel
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- PCIe adapters supporting long distance 10GB fiber? chiel (Jun 19)
- Re: PCIe adapters supporting long distance 10GB fiber? Karsten Elfenbein (Jun 20)
- Re: PCIe adapters supporting long distance 10GB fiber? Mikael Abrahamsson (Jun 20)
- Re: PCIe adapters supporting long distance 10GB fiber? Alain Hebert (Jun 21)
- RE: PCIe adapters supporting long distance 10GB fiber? Aaron Gould (Jun 20)
- Re: PCIe adapters supporting long distance 10GB fiber? Max Tulyev (Jun 20)
- Re: PCIe adapters supporting long distance 10GB fiber? Denys Fedoryshchenko (Jun 20)
- Re: PCIe adapters supporting long distance 10GB fiber? Baldur Norddahl (Jun 20)
- Re: PCIe adapters supporting long distance 10GB fiber? Denys Fedoryshchenko (Jun 20)
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- Re: PCIe adapters supporting long distance 10GB fiber? Baldur Norddahl (Jun 20)
- Re: PCIe adapters supporting long distance 10GB fiber? Denys Fedoryshchenko (Jun 20)
- Re: PCIe adapters supporting long distance 10GB fiber? Mikael Abrahamsson (Jun 20)
- Re: PCIe adapters supporting long distance 10GB fiber? Baldur Norddahl (Jun 20)
- Re: PCIe adapters supporting long distance 10GB fiber? Jim Shankland (Jun 20)
- Re: PCIe adapters supporting long distance 10GB fiber? Jörg Kost (Jun 20)
- Re: PCIe adapters supporting long distance 10GB fiber? Chris Adams (Jun 20)
- Re: PCIe adapters supporting long distance 10GB fiber? Hunter Fuller (Jun 20)
- Re: PCIe adapters supporting long distance 10GB fiber? Denys Fedoryshchenko (Jun 20)