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Re: [SIG-IX] Jumbo Frames on IX
Title: Re: [SIG-IX] Jumbo Frames on IX
Matt,
Thanks for your comments.
The danger is when someone sets up for 1500 MTU and someone else sets up for 9180 MTU. My switch would be happy to forward on the packets, but the packet may be dropped in one direction.
It is imperative that everyone agrees with the same MTU (and agrees to getting decent enough equipment to support this MTU) or it will cause problems. That’s why I’m asking everybody on a public forum. ;-)
Regards,
Raf.
On 10/11/2008 3:35 PM, "Matthew Moyle-Croft" <mmc@internode.com.au> wrote:
Hi Raphael,
My feeling is that 9180 byte MTUs would be nice, even if normally unused. That way, if we and another peer bilaterally want to exchange data with large MTUs we can.
However, 1500 byte MTUs, as you say, will be the norm for a while yet.
MMC
Raphael Ho wrote:
Jumbo Frames on IX Hi everybody,
Thanks for your feedback on my last email regarding v4/v6 on the exchange. We’re rolling out the route-servers and IPv6 addresses on Equinix Exchanges across Asia (Singapore, Tokyo, Sydney and HK), so if anybody needs a port or an address, please feel free to let me know.
Now for another poll – on our new exchange in Hong Kong...
1. Is there value in enabling Jumbo Frames on the exchange?
2. If yes, what sized Jumbo frame do you want?
a) 1600 (baby giant)
b) 4470 (legacy MTU of FDDI, now default for POS links)
c) 9180 (RFC1209)
d) Other (please specify)
My personal concern is that there may be router/switch compatibilities – some people’s equipment may not support jumbo frames of any kind and cause potential issues (although chances are, most endpoint traffic is still 1500bytes these days – maybe life will be different in a few years when GPON brings fiber to everybody’s home). However, the world will be so much more efficient with a larger MTU.
Just wanted to hear your feedback
Regards,
Raf.
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