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From Andrei Mikhailovsky <and...@arhont.com.INVALID>
Subject Re: Cloudstack SSVM and MTU 9000 / jumbo frames
Date Thu, 04 Aug 2016 22:43:20 GMT
Hi Paul,

I am running ACS 4.7.1.1. All of ssvm network interfaces are set to MTU 1500.

Thanks

----- Original Message -----
> From: "Paul Angus" <paul.angus@shapeblue.com>
> To: "users" <users@cloudstack.apache.org>
> Sent: Thursday, 4 August, 2016 15:44:19
> Subject: RE: Cloudstack SSVM and MTU 9000 / jumbo frames

> Which version of CloudStack are you running Andrei? There was a time when the
> MTU setting was applied to the wrong interface but I believe that it has been
> fixed now.
> 
> 
> Kind regards,
> 
> Paul Angus
> 
> paul.angus@shapeblue.com
> www.shapeblue.com
> 53 Chandos Place, Covent Garden, London  WC2N 4HSUK
> @shapeblue
>  
> 
> 
> 
> -----Original Message-----
> From: Andrei Mikhailovsky [mailto:andrei@arhont.com.INVALID]
> Sent: 04 August 2016 15:14
> To: users <users@cloudstack.apache.org>
> Subject: Cloudstack SSVM and MTU 9000 / jumbo frames
> 
> Hello
> 
> I am experiencing some issues with setting MTU to 9000 on the cloudstack ssvm.
> I've updated the secstorage.vm.mtu.size option in ACS management server and
> restarted it. After that i've deleted the SSVM and it has been successfully
> recreated.
> 
> Looking at the network interface on the host server running the ssvm i can see
> that it has indeed updated the MTU value for the storage network. However, when
> I am logging into the ssvm server, the server's storage eth1 interface has the
> MTU set to 1500 and not 9000. Analysing the traffic on the nfs server I can see
> that it is still using 1500 MTU when transferring data over nfs.
> 
> Has anyone successfully changed the MTU value from default to 9000 on the
> storage network? Please let me know how you've done this?
> 
> Many thanks
> 
> Andrei

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