Superhub & Jumbo Frame

[croma]

Hi , does anyone know if the jumbo frame will be avail on the superhub?
Thank you

[Ignitionnet]

No plans that I'm aware of and no real need. The Superhub is a mass market device while jumbo frames are a nerdy epeen exercise with little real application for most.

[craigj2k12]

as igni has said, they arent really needed. If VM offered a gigabit package, im sure they would offer a device capable of using jumbo frame

[Chrysalis]

a gigabit router that doesnt support jumbo frames? seems bizzare to me. A router does more then just deal with a broadband connection,

[craigj2k12]

however, if you look at it from what VM has done, they seem to have only made it capable of handling the broadband connection, and nothing else. the design specification for the router must have been: "make it work for broadband connections up to 200mb"
the superhub isnt geared around the LAN as many have noticed, it simply does the minimum to handle the WAN

[Chrysalis]

of course we noticed. :)

you say it as if its a good thing.

VM should have stuck to just modems and sourcing 3rd party router's.

[craigj2k12]

of course we noticed. :)

you say it as if its a good thing.

VM should have stuck to just modems and sourcing 3rd party router's.

100% agreed

[Hiddendeath]

agree 100% also

[pip08456]

You can have my 100% FWIW

[craigj2k12]

:cool:

[foddy]

a gigabit router that doesnt support jumbo frames? seems bizzare to me. A router does more then just deal with a broadband connection,
A gigabit *switch* may benefit from jumbo frames, but as a broadband router, there's little reason as the traffic is destined for the Internet. (As an aside, I limit TCP MSS on connections through my firewall to 1300 for various reasons. Big isn't always better.)

If you have something which requires jumbo frames, then you'll be wanting a dedicated switch. Otherwise, it's like connecting your high-end hifi equipment together with bell wire.

Does anyone know whether the switch ports in the superhub are software or hardware switched? Even if hardware switched, are they capable of fulll line-speed switching?

[Chrysalis]

a router is used for lan traffic as well as wan traffic. Its your kind of thinking which has made the superhub a dud.

[foddy]

a router is used for lan traffic as well as wan traffic. Its your kind of thinking which has made the superhub a dud.
I thought it was the crashes, poor performance and lack of features which makes it a dud... :tiptoe:

Jumbo frames are pretty specialist stuff. I've no idea what you'd have in your home that would need them (and I mean need, rather than capable of using). I certainly don't.

Personally, if I bought a high-end hifi system, I wouldn't connect it together via my TV. The television does the job it's designed for well. Sure, it could also be used to route audio, but I wouldn't expect it to perform as well as a dedicated AV switch/amp.

[Ignitionnet]

a router is used for lan traffic as well as wan traffic. Its your kind of thinking which has made the superhub a dud.

It's a basic combined router and cable modem with wireless and a few switch ports.

If jumbo frames, 802.1Q, etc, are required a managed switch is the way forward. Expecting high end features from the Super Hub or pretty much any other free ISP supplied equipment isn't realistic.

[Chrysalis]

It's a basic combined router and cable modem with wireless and a few switch ports.

If jumbo frames, 802.1Q, etc, are required a managed switch is the way forward. Expecting high end features from the Super Hub or pretty much any other free ISP supplied equipment isn't realistic.

It is when its the only device that can be used, I dont count double NAT as its not a normal solution and has its own issues, its more of a hack. This is why the dir615 didnt get this level of bad feedback, there is people who think the dir615 sucks but it didnt matter as they were easily able to just buy their own router, problem solved.

[pip08456]

It is when its the only device that can be used, I dont count double NAT as its not a normal solution and has its own issues, its more of a hack. This is why the dir615 didnt get this level of bad feedback, there is people who think the dir615 sucks but it didnt matter as they were easily able to just buy their own router, problem solved.

Or indeed load third party firmware onto it.

[Chrysalis]

seems london speedtest server also broken with this firmware, cant wait till monday now to get rid of this thing. the ones that have a larger testfile fail as it gets connection reset.

[techguyone]

What the heck is a jumbo frame?

[Hugh]

What the heck is a jumbo frame?

http://cn1.kaboodle.com/hi/img/c/0/0/44/8/AAAADKNXskAAAAAAAESIgA.jpg?v=1240190956000 ;)

Actually, it is this (http://kb.netgear.com/app/answers/detail/a_id/222/~/what-is-the-jumbo-frame-supported-by-switches-and-adapters%3F) - an Ethernet packet larger than 1500 bytes (9000 bytes, I believe).

[Ignitionnet]

That link is awful!

Ethernet traffic moves in units called frames. The maximum size of frames is called the Maximum Transmission Unit (MTU).

Historically, Ethernet has a maximum frame size of 1500 bytes,

Nope, that's the size of an IP datagram. That 1500 bytes lives in an Ethernet frame of 1514 bytes, jumbo frames being anything larger than that.

Always gives such confidence when a switch manufacturer doesn't know the difference between datagrams and frames.

EDIT: Also the MTU relates again to the maximum IP datagram size.

The bit they are missing from there is the word payload - whatever lives inside the frame not the frame itself.

Anyway...

[techguyone]

oookay, and what would you want to/need to use a jumbo for ?

Especially with gigabit ethernet available.

[Ignitionnet]

oookay, and what would you want to/need to use a jumbo for ?

Especially with gigabit ethernet available.

It's that GigE is available that's the point. Jumbo frames can improve throughput though their use within a home environment is debatable.

[croma]

well I started this tread ...so all started because I got a NAS attached on the superhub and throughput though that is not so good even set and connected via the gigabit.
My NAS has the option to switch the jumbo frame to a max of 9000k so improce transfer trate but the superhub does not ... the end ..

[Ignitionnet]

Define 'not so good'?

The limitation could be on the NAS rather than the lack of jumbo frames, and probably is a limit there or on the Pooper Hub's switch.

[sniper007]

I've looked into Jumbo frames before. The problem is, that everything on your LAN (in the loop for which you desire the extra speed, i.e. PC, Backup server/NAS) needs to be set up for Jumbo frames. So the clients will need network cards capable of it and being able to set the value to the same as that on the NAS in question by the OP. OP stated his NAS can be set to 9000, then you would want to set the client the other end to 9000 as well as the superhub support it. Some network cards can only set certain values in between a set range which can cause issues with Jumbo Frames.

It is perhaps unrealistic to expect the superhub to deal with this, as it is a specialist requirment. Anyone that wants this would run their own router/switch and manage it themselves. However, Virgin make you use the superhub now with no option to add your own dedicated router so things like this become more of an issue. We are going backwards really. Virgin make things like this an issue. The superhub would have had to be something amazing to cater for everyone, even technically able people who want to customize. But with "amazing" sometimes this means "open", which is not something Virgin want in an all in one which houses their modem interface to connect to the Virgin network. It was always going to be a compromised product.

Jumbo frames sometimes cause more hassle than they are worth anyway. Not everyone who tries it find it helps massively, or even causes more issues. I wanted to look into it, but I think it's becomming a bit obsessive, when the bottleneck is much more likely ot be elsewhere. If you can say you are running a high spec NAS or custom storage with high read/write speeds and Intel dedicated network cards, and you are still wanting more performance, then maybe you have an argument. More often than not in a home network, other bottlenecks should be addressed before jumbo frames, since Jumbo frames will only add a marginal performance increase. In reality sometimes only 10%.