Re: Reopening jumbo frames in IS-IS

[Curtis Villamizar <curtis at faster-light.net>]

In message <42BF0568.5090708 at tony.li>
Tony Li writes:
>  
>  
> > Jumbo frames exists only to avoid the performance drop that would
> > otherwise potentially cripple core networks using GbE or 10GbE and
> > aggregating higher MTU links.
>  
>  
> Another, and perhaps more common, reason for jumbo frames is to support
> high speed data center and storage applications.  Many modern systems
> have an 8KB primary memory page size, and can be most efficient at bulk
> transfers when they can make use of the page as a transfer unit.
>  
> Tony


Excluding NFS and a few other less used protocols there is little
reason for end system jumbo frames.  It is widely understood that NFS
8K UDP packets are a bad design.

IMHO endorsing jumbo frames in end systems goes to much against what
IEEE would like to see and does so for the benefit of protocols that
should have a new revision that eliminates the need by being more MTU
aware.  This also can improve their performance radically when used
over a WAN or VPN.

Curtis