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Forum Discussion
Help set up jumbo frames
Hi All, I want to improve performance on my ReadyNAS Ultra 4 Plus. I've read that I can enable the jumbo frames on the NAS to improve it, but I need a switch/router/network card that support jumbo frames.
Before I start, my main computer network card has support for jumbo frames, that's good, but I have about 20 devices (android smartphones, older laptops, tablets, media streaming devices, etc.) that will connect, play files, download files, upload files. Do those devices needs to be jumbo frames ready and enabled devices to work with this?
Right now, as I said, my main computer 'supports' jumbo frames, but it is disabled on the network card. I can enabled it though.
So if answer is that all my connected devices won't be able to connect to the NAS (I mean, can't connect at all, if it will be able connect but without jumbo frames support without issue or negatives points, it's ok with me) because of the jumbo frames, you can't stop here since I won't enable it, I want all my devices to be able to connect and interact with the NAS as usual.
But if it works..., here's my setup, I want to know if I have to do something special;
Router - Asus RT-AC66U - Jumbo Frames currently disabled. I don't know and can't find the actual size.
- (Connected to Asus RT-AC66U router) Netgear ReadyNAS Ultra 4 Plus - Jumbo Frames currently disabled, I'm not sure, but I think I saw the size is 9,000 bytes
- (Connected to Asus RT-AC66U router) Switch - Asus GX-D1081 - I 'guess' jumbo frames are enabled by default, 16KB size
- (Connected on the Asus GX-D1081 switch which is connected on the Asus RT-AC66U router) Motherboard main computer (Asus P8Z68 Deluxe) - Network interface = Intel(R) 82579V Gigabit - Jumbo Frames currently disabled, I can enabled it to 4,088 Bytes or 9,014 Bytes
This is all wired with CAT6 ethernet cables.
If it's all ok, I'll go with that config since my main PC will probably be the only PC doing big changes on the NAS, if others still can access the NAS, but without jumbo frames if they can't support it, that's ok.
I'm new to jumbo frames, if I'm missing something, please explain it to me if you have some spare time.
Thanks a lot.
Before I start, my main computer network card has support for jumbo frames, that's good, but I have about 20 devices (android smartphones, older laptops, tablets, media streaming devices, etc.) that will connect, play files, download files, upload files. Do those devices needs to be jumbo frames ready and enabled devices to work with this?
Right now, as I said, my main computer 'supports' jumbo frames, but it is disabled on the network card. I can enabled it though.
So if answer is that all my connected devices won't be able to connect to the NAS (I mean, can't connect at all, if it will be able connect but without jumbo frames support without issue or negatives points, it's ok with me) because of the jumbo frames, you can't stop here since I won't enable it, I want all my devices to be able to connect and interact with the NAS as usual.
But if it works..., here's my setup, I want to know if I have to do something special;
Router - Asus RT-AC66U - Jumbo Frames currently disabled. I don't know and can't find the actual size.
- (Connected to Asus RT-AC66U router) Netgear ReadyNAS Ultra 4 Plus - Jumbo Frames currently disabled, I'm not sure, but I think I saw the size is 9,000 bytes
- (Connected to Asus RT-AC66U router) Switch - Asus GX-D1081 - I 'guess' jumbo frames are enabled by default, 16KB size
- (Connected on the Asus GX-D1081 switch which is connected on the Asus RT-AC66U router) Motherboard main computer (Asus P8Z68 Deluxe) - Network interface = Intel(R) 82579V Gigabit - Jumbo Frames currently disabled, I can enabled it to 4,088 Bytes or 9,014 Bytes
This is all wired with CAT6 ethernet cables.
If it's all ok, I'll go with that config since my main PC will probably be the only PC doing big changes on the NAS, if others still can access the NAS, but without jumbo frames if they can't support it, that's ok.
I'm new to jumbo frames, if I'm missing something, please explain it to me if you have some spare time.
Thanks a lot.
3 Replies
Replies have been turned off for this discussion
- in many cases, jumbo frames isnt worth the effort.
if you enable jumbo frames, on devices that have a supported jumbo frame path, you may get see some peformance increase.
on devices which don't support jumbo frames or go through a non-jumbo supported path, they will generally negotiate a non-jumbo mtu connection, but various devices have questionable JF support and sometimes can reduce performance and/or cause strange connection issues.
Unless you spend the majority amount of time transferring around bluray and/or dvd rips, then I would suggest just leaving JF off.
There are only a few ways to meaningfully improve performance, faster hard drives (ie don't use green/low power drives), faster cpu (which I don't think is upgradable on the ultra4's), and more memory (but only if you are running a ton of addons).
More memory, which is probably the easiest, won't increase the top speed, but *may* increase the low speeds and bring the average speed up by having increased cache available. Still, drive speed and cpu speed are generally the primary determining factors. - Per http://www.asus.com/Networking/GXD1081_ ... ifications the switch max Jf size is 9200 bytes, not 16KB
Anyway, I agree with TeknoJnky. On my network jumbo frames weren't worth it. - I just tried it, just for fun, and I saw a 10 to 15 MB/s increase in bandwidth. I passed from 65MB/sec to about 75 to 80 MB/sec..., but I just wanted to be sure there's no drawbacks.
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