[AusNOG] 10GBs

[Robert Hudson]

Grab an optical fibre scope while you're at it. It's amazing how dirty your
cable ends and recepticals can actually be.

And for the love of $deity, make sure nobody's done something as stupid
(been there, done that - I had an excuse because I was new to working with
fibre, the major carrier datacentre operators less so - yes, they did it
too) as plugging SC cables into SCA recepticals or vice versa.

Have you done optical loss testing? Some network gear can tell you directly
what your tx and rx power levels are.

On 9 Nov. 2017 7:03 am, "Mike Taylor" <mtaylor at totalteam.co.nz> wrote:

So, yeah, Layer1 first, apply your fibre cleaning tools to the fibres,
SFPs, patch leads etc.

10gig gets very very twitchy if the cables and SFPs aren't cleaned
properly...

Better still, swap out all the patch leads for brand new ones and see what
happens...

Mike


Mike Taylor
The Total Team


On 08/11/17 15:59, Robert Hudson wrote:

There is no trial and error. Start at Layer 1, and work up the stack.

Correct setup and good logging should resolve it.

There are lots of potential issues. You can cut some of them down
immediately by selecting hardware on the hypervisor supplier's HCL - they
should have good drivers for the 10Gbps NICs at that point.

Speed/duplex, frame size, etc, all need to be consistent across the entire
environment. Get wireshark or an equivalent involved (using a mirror port
if necessary).

If your hardware and software are all under full support, involve your
vendors in the issue.

On 8 Nov. 2017 1:23 pm, "Burt Mascareigne" <Burt at stormnetwork.com.au> wrote:

> Hi Noggers
>
>
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> We’re having “fun” with 10GB NICS, Switches and SFPs.
>
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> We can’t work out which is causing drop out, packets.. we are somewhat
> certain packets are vanishing into the Ether..
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> We don’t know which is causing what.
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> I’m not after troubleshooting, I am curious what people’s view on this.
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> Do you buy 1 Vendor for all your 10GBs, A-Z, is there some hidden rule
> about mixing vendors, is this all trial and error (and very expensive at
> best)?
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> Any recommendations on set ups?  Preferred Vendors, Vender to avoid like
> the plague.
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> We’re talking Servers to Switch kind of thing.  Not SANs etc.  Good ol’
> HyperVisor to the switch.
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> Thanks
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> Regards,
>
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> *Burt Mascareigne Mobile* 0414 450 962   *Office* (02) 9965 5422
> *Address* Level 19, 1 O’Connell Street, Sydney NSW 2000
> *Web* http://www.stormnetwork.com.au
> [image: 01-300x70]
>
>
>
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>

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