On 28 Oct 2024, at 22:18, Heim, Dennis via discuss wrote:
> I am trying to do ERSPAN for the first time. My option vSwitch is running on
> Oracle Linux 8 (kernel 5.18), and Open vSwitch 3.3.2. I have a single bridge
> named data.
> Enter the following commands:
> ovs-vsctl add-port br0 at_erspan0 -- \
> set int at_erspan0 type=erspan options:key=1 \
> options:remote_ip=192.168.95.10 \
> options:erspan_ver=1 options:erspan_idx=1
>
>
>
> [root@ovs01 wwt]# ovs-vsctl show
> adf03227-4174-4073-b934-5f11b700f241
> Bridge data
> Port gi2
> tag: 10
> Interface gi2
> Port vlan10
> tag: 10
> Interface vlan10
> type: internal
> Port at_erspan0
> Interface at_erspan0
> type: erspan
> options: {erspan_idx="1", erspan_ver="1", key="1",
> remote_ip="192.168.95.10"}
> Port data
> Interface data
> type: internal
> Port vlan90
> tag: 90
> Interface vlan90
> type: internal
> Port vlan1
> tag: 1
> Interface vlan1
> type: internal
> Port gi3
> tag: 10
> Interface gi3
> Port vlan95
> tag: 95
> Interface vlan95
> type: internal
> Port gi5
> tag: 95
> Interface gi5
> Port gi1
> tag: 1
> Interface gi1
> ovs_version: "3.3.2"
>
> Is there any additional configuration required to make ERSPAN work? I have a
> VLAN95 internal interface on the same subnet as the ERSPAN destination.
Assuming you set up the kernel part correctly, this should be it. Here is a
link to our unit test with an example, I would suggest trying this
configuration on your setup to verify it’s working:
https://github.com/openvswitch/ovs/blob/06b8b9ecc941a7e04550b69d2cbe22985ebe0409/tests/system-traffic.at#L654
> In the system logs, this is about all I am seeing:
> Oct 28 17:03:39 ovs01.wwtlabs.local ovs-vsctl[3394]:
> ovs|00001|vsctl|INFO|Called as ovs-vsctl add-port data at_erspan0 -- set int
> at_erspan0 type=erspan options:key=1 options:remote_ip=192.168.95.10
> options:erspan_ver=1 options:erspan_>
> Oct 28 17:03:39 ovs01.wwtlabs.local kernel: device erspan_sys entered
> promiscuous mode
> Oct 28 17:03:39 ovs01.wwtlabs.local systemd-udevd[3396]: link_config:
> autonegotiation is unset or enabled, the speed and duplex are not writable.
> Oct 28 17:03:39 ovs01.wwtlabs.local systemd-udevd[3396]: Could not generate
> persistent MAC address for erspan_sys: No such file or directory
>
>
>
> Dennis Heim | Technical Solutions Architect
>
>
>
> INTERNAL
>
>
> INTERNAL
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> disc...@openvswitch.org
> https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
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