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.
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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