On Mon, 23 Jun 2014 12:27:02 +0800
Pyxis LX <[email protected]> wrote:
> Hello,
>
> I'm testing switches with the switch test tool.
>
> I've found that the values of VLAN_VID look quite strange in this file:
>
> ryu/tests/switch/of13/action/25_SET_FIELD/06_VLAN_VID.json
>
> In line 15, 30, 79, 94, 143, 158 we have VLAN_VID 4196 and 4299 respectively.
>
> Should they be 100 and 203 or I missed something?
I think OFPVID_PRESENT is bitwise-OR'ed with VID.
enum ofp_vlan_id {
OFPVID_PRESENT = 0x1000, /* Bit that indicate that a VLAN id is set */
OFPVID_NONE = 0x0000, /* No VLAN id was set. */
};
OF 1.3.4 spec (Table 13: Match combinations for VLAN tags.) says:
"value | OFPVID_PRESENT" matches packets with VLAN tag and VID equal value.
i.e.
100 | 0x1000 = 4196
And OF 1.3.4 spec (7.2.5 Action Structures) says:
The value in the payload of the OXM TLV must be valid, in particular the
OFPVID_PRESENT
bit must be set in OXM_OF_VLAN_VID set-field actions.
i.e.
203 | 0x1000 = 4299
>
> Thanks!
>
> -PLX
>
>
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Leverages Graph Analysis for Fast Processing & Easy Data Exploration
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