(these comments are from work we did with nova-network a while ago. These
comments are only focused on the underlying kvm performance, not the
gymnastics to get neutron to build out the right configuration)
We've seen similar performance (around 3 Gbps) for GRE tunnels on machines
that can easily
gured MTU=8500 in all configure files, while the physical
> NIC used for OVS (local IP) is using MTU=9000.
>
>
>
> Thanks.
>
> -chen
>
>
>
> *From:*Ageeleshwar Kandavelu [mailto:ageeleshwar.kandav...@csscorp.com]
> *Sent:* Monday, January 27, 2014 9:57 PM
9:57 PM
To: Li, Chen
Cc: openstack@lists.openstack.org
Subject: [Openstack] How to enable jumbo frames for instances
Hi,
Is it possible to have a higher MTU when your ethernet is limited to 1500?
Thank you,
Ageeleshwar K
http://www.csscorp.com/common/email-disclaimer.php
___
Hi,
Is it possible to have a higher MTU when your ethernet is limited to 1500?
Thank you,
Ageeleshwar K
http://www.csscorp.com/common/email-disclaimer.php
___
Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
Post to : opens
son I want to use jumbo frames is I hope jumbo frames will use
less CPU%, so that I can get higher bandwidth for a whole compute node.
>
> Thanks.
> -chen
>
>
> -Original Message-
> From: Heiko Krämer [mailto:i...@honeybutcher.de]
> Sent: Monday, January 27, 2014 4:11
compute node.
Thanks.
-chen
-Original Message-
From: Heiko Krämer [mailto:i...@honeybutcher.de]
Sent: Monday, January 27, 2014 4:11 PM
To: openstack@lists.openstack.org
Subject: Re: [Openstack] How to enable jumbo frames for instances ?
Hi Chen,
first of all, the default supported n
uot;
mailto:openstack@lists.openstack.org>>
Subject: [Openstack] How to enable jumbo frames for instances ?
Hi list,
I’m working under CentOS 6.4 + Havana + Neutron + OVS + gre.
I’m testing performance for gre.
I have a 10Gb/s NIC for compute Node.
While, the max bandwidth I can get is s
Hi Chen,
first of all, the default supported network driver for kvm supported
only 1g.
You can configure your MTU in your /etc/neutron/dnsmasq.conf on network
node,like:
dhcp-option-force=26,1454
MTU = 1454
You need to kill all dnsmasq processes on your network node and restart
dhcp agent.
In
Hi list,
I'm working under CentOS 6.4 + Havana + Neutron + OVS + gre.
I'm testing performance for gre.
I have a 10Gb/s NIC for compute Node.
While, the max bandwidth I can get is small then 3Gb/s, even I have enough
instances.
I noticed the reason the bandwidth can't reach higher is due to the
