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Re: [MirageOS-devel] Xen VIF configuration for tap devices

excellent :)

On 30 Oct 2014, at 17:53, Masoud Koleini <masoud.koleini@xxxxxxxxxxxxxxxx> 

> Solved.
> Although Netif.connect accepts alphanumeric device ids in unix 
> configuration, Xen version only accepts integer ids. Otherwise, it 
> always assigns the first defined vif to the device. So, "tap1" has to be 
> "1", and so on.
> Thanks everyone.
> On 30/10/14 13:42, Richard Mortier wrote:
>> all;
>> to take a slightly different tack on this -- is there anyone out there 
>> successfully running mirage unikernels on xen that make use of >1 network 
>> interface?  how did you configure this?
>> haris-- what did you do for the mirage openflow paper?
>> more generally-- is http://wiki.xenproject.org/wiki/Xen_Networking the 
>> canonical location for info on how to configure and manage networking on xen 
>> vms?
>> and presumably all this results in entries in xenstore-- are 
>> http://wiki.xen.org/wiki/XenStore and 
>> http://wiki.xen.org/wiki/XenStore_Reference the canonical documentation for 
>> xenstore and it's use by network devices?
>> is there any documentation available on how to debug openvswitch networking 
>> on xen via xenstore (or through some other means)?
>> On 26 Oct 2014, at 20:06, Masoud Koleini <Masoud.Koleini@xxxxxxxxxxxxxxxx> 
>> wrote:
>>> I have defined 3 vifs with 3 different mac addresses for the 3 tap
>>> devices that I am using, and switch shows the same mac address (mac
>>> address of the first defined vif) assigned to both tap2 and tap3.
>>> Another issue that I faced is, although I can ping switch vm, nothing
>>> appears on vifs and xenbr0 when switch starts a TCP connection to a
>>> remote controller (using TCPV4 create_connection function). This
>>> function works well for unix config.
>>> On 26/10/14 11:43, Anil Madhavapeddy wrote:
>>>> On 25 Oct 2014, at 11:36, Masoud Koleini <masoud.koleini@xxxxxxxxxxxxxxxx> 
>>>> wrote:
>>>>> Hi all,
>>>>> I have a switch with three tap devices tap0 (for the controller 
>>>>> connection), tap1, and tap 2 running on Xen.
>>>>> What would be the right VIF configuration for Xen?
>>>> It would be pretty much the same configuration as your tap setup.  The Xen 
>>>> networking model is to expose a VIF ('virtual interface') in the guest and 
>>>> dom0.  Everything else from there is host setup and can be customised -- 
>>>> most commonly by adding a bridge to the outside world and adding the VIFs 
>>>> from the guests to that bridge so they can communication externally.
>>>> The xl setup fragment looks like:
>>>>     vif = [ 'bridge=xenbr0' ]
>>>> or
>>>>     vif = [ 'mac=c0:ff:ee:c0:ff:ee,bridge=br0' ]
>>>> -anil
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