Hi
What is max mtu in jumbo frame?
ls it 9000?
Do I need to reboot the switch to take effect after
setting up it?
if it doesn't need to reboot, How can I know the
switch is running fine in this mtu 9000? eg: cisco
any tools to check?
Thank you for your help
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From: adrian kok [mailto:adriankok2...@yahoo.com.hk]
Sent: January 30, 2009 12:57 PM
To: nanog@nanog.org
Subject: can I ask mtu question
Hi
What is max mtu in jumbo frame?
ls it 9000?
Do I need to reboot the switch to take effect after
setting up it?
if it doesn't need to reboot
http://www.google.com/search?source=ig&hl=en&rlz=&=&q=What+is+max+mtu+in
+jumbo+frame%3F+&btnG=Google+Search&aq=f
>-Original Message-
>From: adrian kok [mailto:adriankok2...@yahoo.com.hk]
>Sent: Friday, January 30, 2009 12:57 PM
>To: nanog@nanog.org
&g
KanREN runs Foundry (Brocade) NetIron XMR 4000's as our primary core
infrastructure with an MTU of 9216. To make the change (this is
Foundry-specific), we have to change some system-max settings which
only take effect once the device has been rebooted (or at least it DID
require a reboot in
On Fri, 30 Jan 2009 12:57:25 -0500, adrian kok
wrote:
What is max mtu in jumbo frame?
That depends on the hardware. I've seen gear running as low as ~8k. I'd
have to consult standard, but I think the max is 10k (10240).
Keep in mind the switch is not the only device on the network with
On Fri, 30 Jan 2009, Ricky Beam wrote:
On Fri, 30 Jan 2009 12:57:25 -0500, adrian kok
wrote:
What is max mtu in jumbo frame?
That depends on the hardware. I've seen gear running as low as ~8k. I'd
have to consult standard, but I think the max is 10k (10240).
Keep in mind the switch is n
> That depends on the hardware. I've seen gear running as low as ~8k. I'd
> have to consult standard, but I think the max is 10k (10240).
There *is* no standard for jumbo MTU. IEEE has steadfastly refused to
standardize anything bigger than 1500 bytes.
Steinar Haug, Nethelp consulting, sth...
On (2009-01-30 16:33 -0500), Ricky Beam wrote:
> That depends on the hardware. I've seen gear running as low as ~8k. I'd
> have to consult standard, but I think the max is 10k (10240).
Which standard are you referring to? AFAIK, nothing above 1500 is
standardised
--
++ytti
On Fri, 30 Jan 2009 16:51:00 -0500, Justin M. Streiner
wrote:
If you're sourcing the pings from a device that supports it, you can
also send the large pings with the Do Not Fragment bit set.
Most modern systems do that already (part of path MTU discovery.) And if
there are no routers in t
On Fri, 30 Jan 2009 17:00:00 -0500, Saku Ytti wrote:
Which standard are you referring to? AFAIK, nothing above 1500 is
standardised
None that have ever been accepted. From a quick google for manufacturer
support, 9216 looks like the most popular number. But, as I said, it
boils down to t
>
> What is max mtu in jumbo frame?
> ls it 9000?
>
You might want to consider what the Internet/2 folks are doing because they
have a few years of experience with Jumbo frames. This page <
http://noc.net.internet2.edu/i2network/jumbo-frames.html> gives an overview
and links to several presentatio
>> Which standard are you referring to? AFAIK, nothing above 1500 is
>> standardised
I've had two different kinds of customer requests for jumbo frames
- customers that want very large frames for performance reasons;
Many ethernet switches support 9000 or more, some don't,
and some technolog
Ricky Beam wrote:
On Fri, 30 Jan 2009 17:00:00 -0500, Saku Ytti wrote:
Which standard are you referring to? AFAIK, nothing above 1500 is
standardised
None that have ever been accepted. From a quick google for
manufacturer support, 9216 looks like the most popular number. But,
as I said, i
* sam_mailingli...@spacething.org (Sam Stickland) [Tue 03 Feb 2009, 13:04 CET]:
For what it's worth, TCP will negiogate MSS and will work with
mismatched MTU in a single LAN segment.
No
Machine 1 -- switch with 1500 byte MTU -- switch with smaller MTU --
switch with 1500 byte MTU -- machine 2
Niels Bakker wrote:
* sam_mailingli...@spacething.org (Sam Stickland) [Tue 03 Feb 2009,
13:04 CET]:
For what it's worth, TCP will negiogate MSS and will work with
mismatched MTU in a single LAN segment.
No
Machine 1 -- switch with 1500 byte MTU -- switch with smaller MTU --
switch with 1500
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