Hi,
On 2015年05月14日 01:44, Liu, Weijie wrote:
> Hi,
>
> I have a question when I read the output of 'GET /stats/flow/1' of
> ryu.app.ofctl_rest. You know, I want to use this command to see the flow
> rules in a switch's flow table.
>
> My question: In "match", there is a field like "dl_vlan: 0". It can be
> considered as a wildcard matching; but it can also be considered as exactly
> matching dl_vlan as value zero.
>
> How can I tell which of the two is correct?
"exactly matching dl_vlan as value zero" is correct.
Just for your infomation, how to read of "dl_vlan" field is as follows.
"match": {"dl_vlan": "0-4095"}
-> Only packets with VLAN tag and VID equal
"match": {"dl_vlan": "0x0000"}
-> Only packets without a VLAN tag
"match": {"dl_vlan": "0x1000/0x1000"}
-> Only packets with a VLAN tag regardless of its value
thanks,
>
> Thanks.
> --
> Weijie Liu
> Department of Computer Science
> University of Illinois at Urbana-Champaign
> (217)819-6113
>
>
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