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Hello,

Can you tell me exactly how to change the br-tun and br-int in its config file?
Which file and where?

I’m using OVS which by default also has the Linux bridge.  How to take care of it?

Thanks,
Danny


-------------------------------------------
Date: Mon, 9 Feb 2015 15:01:57 +0530
From: mad Engineer <themadengin33r at gmail.com<mailto:themadengin33r at gmail.com>>
To: Eren T?rkay <erent at skyatlas.com<mailto:erent at skyatlas.com>>
Cc: "openstack at lists.openstack.org<mailto:openstack at lists.openstack.org>" <openstack at lists.openstack.org<mailto:openstack at lists.openstack.org>>
Subject: Re: [Openstack] higher MTU for all interfaces
Message-ID:
<CAN8oO4A_XcGM86_KxEySKOa_wOf1ZQwwOSMgmhtdKLtjFtF6vw at mail.gmail.com<mailto:CAN8oO4A_XcGM86_KxEySKOa_wOf1ZQwwOSMgmhtdKLtjFtF6vw at mail.gmail.com>>
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thanks,i manually changed br-tun br-int in its network config file and
now its working across reboot.


On Mon, Feb 9, 2015 at 12:42 PM, Eren T?rkay <erent at skyatlas.com<mailto:erent at skyatlas.com>> wrote:
On 08-02-2015 21:56, mad Engineer wrote:
Hello all is there any way we can change MTU of all relevant
interfaces of instances,if i set
dhcp-option-force=26,1400 will it change MTU of all relevant
interfaces like qbr qvo br-int etc etc
is there any way to change MTU of all neutron interfaces.

Hello,

There is an option "network_device_mtu" on nova.conf. When tap,qvo,qbr bridges
are setup, it will use this setting to set MTU. However, from my experience,
there is no setting to set br-tun, br-int MTU setting.

I need to note that DHCP option will only cause MTU setting inside VMs.

You can follow the bug report about setting MTUs on br-int, br-tun interfaces.

https://bugs.launchpad.net/neutron/+bug/1419069

Regards,
Eren

--
System Administrator
https://skyatlas.com/

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