Quanta LB6M (10GbE) -- Discussion

Jon Massey

Active Member
Nov 11, 2015
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The 20mm-thick version Mini Kaze Ultra shifts a bit more air at a still-respectable 19dBA. Evercool and Sunon to 40mm PWM fans which can shift a lot more air at full whack (45+dBA) but you're at the mercy of the mainboard to PWM them down and I suspect it'll lean more towards high-noise than low. Perhaps dialing down a thicker (20, 28mm) 2/3-pin fan with a suitable controller to a compromise noise/thermal level might be a safer bet!
 

StammesOpfer

Active Member
Mar 15, 2016
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FYI on the fans. They are on a tray you don't have to open up the whole thing. just undo the two screws on the back and pull the module. If you are going to run PWM and less than three fans make sure you at lest plug in the one closest to the power supply. If the the fan closest to the power supply is unplugged the other two go full speed but the other two can be unplugged and it will still vary the speed appropriately.
 

frogtech

Well-Known Member
Jan 4, 2016
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Trying to figure out LACP. I followed the FastPath manual to add ports to the port-channels but Server 2012 still reports LACP negotiation fault. Is there something I'm missing? I haven't set subnet associations on any VLANs or IP addresses on the NIC in Windows as usually I would think LACP is a protocol negotiation that can be done without addressing.

The manual says after you add ports to LAGs you can add the LAG to the default management VLAN. If I do 'show vlan 1' it shows all the LAG groups as already being members.

Thoughts or ideas?
 

_Adrian_

Member
Jun 25, 2012
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Leduc, AB
Following this thread...
Been thinking of pairing one of these to my C7000 ( Using the Virtual Connect 1/10F on the network side of things ), and my Firebox ( x1250e ) is about to receive an HP NC510F. All in all 5 ports would be populated right off the bat !
 

axemann

New Member
Jul 7, 2013
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UPDATE: Well, I was able to resolve my performance issues for now, but I'm not sure why this worked: I had to enable jumbo frames end-to-end to finally break through to 9Gb/s. This leads me to believe something else is off config-wise, since it seems everyone else is only seeing a 10% performance gain by using jumbo.

Anyone else seeing lower-than-expected speeds? I have a Mellanox MNPH-29D and a Chelsio T520-LL-CR connected with active DACs and can only get about 5Gb/s with 10 parallel streams in iperf. Same config on my old Brocade 8000 was hitting 9Gb/s+...

Not sure what's up. I'm going to try swapping the two DACs with two others I have, but they're all Brocade "branded" Fiberstore cables, so not sure if those might be the issue.


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_Adrian_

Member
Jun 25, 2012
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Price is a factor. I use DAC for anything that is staying in the rack if it is leaving the rack then I use SFP+ transceivers.
Just asking as OM3 is fairly cheap on EvilBay and same for the XFP modules.
Main question... What XFP Modules are compatible ?
 
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_Adrian_

Member
Jun 25, 2012
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Today I picked up another Firebox ( X550e ) for "server" duties. This unit will receive one of the HP NC510F's alongside a way Faster Processor and the max out the RAM as it will be the the VPN box.
On top of this, It's gonna be a few more days before my 2 Virtual Connect 1/10F's will arrive anyway.
My plan is to use all 4 pairs ( 2 XFP's on each networking blade ) from the VC1/10F's to the LB6M running in LACP.
I'm "reducing" my cabling through MPO cassettes. This way I can run multiple fibers at once with a single drop and leave room for future "expansion" which is expensive initially, but cheaper in the long run as with a double cassette it gives me 24 fibers or 12 pairs in a single drop as well as a certain degree of redundancy and future proofing.
NOTE: I will also be using my 1GB optics through the same cassettes into my HP ProCurve 2824 that's currently my "HOME" network.

This 10G network will be a dedicated SERVER network, meanwhile the 1G will be an grey area of mixed devices and AP's.
The only device outside the servers on the 10G will be my HTPC which runs Kodi on it.
 

frogtech

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Jan 4, 2016
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I actually can't seem to get jumbo packets working, I've set reduced the issue to the bare minimum with no teamed nics or hyper-v virtual adapters, set the jumbo packet to 9000 in the adapter properties and set the global mtu to 9216 on the switch. When I test with ping -f -l 9000 I get "packet must be fragmented". Any ideas?
 

redwing31

New Member
Feb 12, 2016
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Alright folks, can anyone provide insight on 1G SFP (optical, SM or MM don't care) that will work? I have tried what I have laying around, and no joy. Seems like the port is forced to 10G, but if I do [Config->Interface 0/2-> Speed ?] it shows 10 or 100M, and if i try either of those, or 1000 it errors with invalid physical mode for this port or invalid input.

Show Port All indicates that port 0/1-0/24 are 10G FD. My 10G stuff is working fine.

FW version 1.2.0.14, I have not tried other firmware yet.
 

djflow195

Member
Jan 1, 2016
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When I test with ping -f -l 9000 I get "packet must be fragmented". Any ideas?
Try with -l 8900 and work your way up in size by 10. When it stops, go down in size by 1 until it succeeds. Add 28 to that number and that is your IP MTU.

Ping should add 28 bytes (IP Header and ICMP Header) to whatever number is in -l for the overall packet size.
 
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redwing31

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Feb 12, 2016
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Im sure those work well, but I have 10GbE transceivers that work just fine. I (and I believe several others) are looking for info on 1GbE transceivers.


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Sleyk

Your Friendly Knowledgable Helper and Techlover!
Mar 25, 2016
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Stamford, CT
Hmm.... I tried to get a cheap 1gb sfp transceiver to work, but no go for me.... Perhaps a special setting on config to get the switch to downclock/downshift to 1gb? I feel like I wanna be ambitious and shoot an email to quanta to beg and offer my arm and leg as a sacrifice for any added info....

I also have another great idea for the switch to slow down the ORIGINAL jet engine fans that I am working on. Will post when done.
 
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dwright1542

Active Member
Dec 26, 2015
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yeah seems to be more not working than working, hopefully @dwright1542 or someone else will be able to provide some info.

FWIW, I have tried:

Molex DAC P/N 73929-0024
Cisco DS-SFP-FC4G-SW
Agilestar GLC-LH-SM
[Unbranded] 1000BASELX-SFP
It's in production, and it may be awhile until I can pull one. I'm pretty sure it's a Finistar. I am running jumbo frames on it, BTW. No special config needed on the port.