Re: [Xen-users] How to know which interface DomU sees the Vif device

["Fajar A. Nugraha" <list@xxxxxxxxx>]

On Fri, Nov 19, 2010 at 12:49 AM, Diego Dias <diego.dias@xxxxxxxxxxx> wrote:
> Is there a way to dinamically know on which network interface domU sees the
> Vif Dom0 "gives" to them.
>
> Ex:
>    on Dom0: Vifname: vif111.0
>    on DomU: vif111.0 on network interface : eth0

On the default setup, it's easy

>    on Dom0: Vifname: vif111.0
>    on DomU: vif111.0 on network interface : eth0

vif111.0 means it's the first interface of a domU with id 111. Run "xm
list" and see which domU has that ID. In the domU side,
vif111.0 will be eth0, vif111.1 will be eth1, and so on.


Another method to look (which is especially useful if you've changed
the interface name) is something like this:
# xm list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0  2046     2     r----- 1700592.7
ubuntu-test                                231   128     1     -b----  26724.9

# xm network-list ubuntu-test
Idx BE     MAC Addr.     handle state evt-ch tx-/rx-ring-ref BE-path
0   0  00:16:3E:63:2E:90    0     4      11    1297 /1296
/local/domain/0/backend/vif/231/0

# xenstore-ls /local/domain/0/backend/vif/231/0
(selected output only)
bridge = "br6"
domain = "ubuntu-test"
handle = "0"
frontend = "/local/domain/231/device/vif/0"
vifname = "u-test-eth0"

-- 
Fajar

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