Hello everybody, i have a problem with the interaction between my OVS and my
switch.
When i want to ping my gateway on my cisco, from my Virtual Machine (VM1), I
see on eth1 (interface linked to the switch and to the bridge br0), that i have
only the arp request tagged 35, and not the reply...
Furthermore, if i add a static entry in arp table on VM1, i can see that the
ping request is sent to the cisco, and with a port mirroring on the cisco
interface, i see (with tcpdump) the request and the reply without tag.... so,
no reply on eth1...
Very strange .... I don't understand ..
The OVS Configuration :
[root@st2b2kvm2 ~]# ovs-vsctl show
93c8f900-cc8b-44a9-9081-613d79bc846e
Bridge "br0"
Port "vnet1"
tag: 35
Interface "vnet1"
Port "br0"
Interface "br0"
type: internal
Port "vnet0"
tag: 35
Interface "vnet0"
Port "eth1"
trunks: [1, 35, 200]
Interface "eth1"
eth1 : (Interface link to the cisco)
[root@******** ~]# ovs-vsctl list port eth1
_uuid : 9c3336ec-daee-4278-a38f-c0ad187cd219
bond_downdelay : 0
bond_fake_iface : false
bond_mode : []
bond_updelay : 0
external_ids : {}
fake_bridge : false
interfaces : [c14d8d45-36c6-41c3-a7e1-4e2de822dc73]
lacp : []
mac : []
name : "eth1"
other_config : {}
qos : []
statistics : {}
status : {}
tag : []
trunks : [1, 35, 200]
vlan_mode : trunk
vnet0 : (virtual interface of VM link to the bridge br0)
[root@********* ~]# ovs-vsctl list port vnet0
_uuid : 5456a5c2-1832-4963-b69b-07a79e38d3fd
bond_downdelay : 0
bond_fake_iface : false
bond_mode : []
bond_updelay : 0
external_ids : {}
fake_bridge : false
interfaces : [f853c299-aac0-4cdd-a327-4d82bd5911aa]
lacp : []
mac : []
name : "vnet0"
other_config : {}
qos : []
statistics : {}
status : {}
tag : 35
trunks : []
vlan_mode : []
My cisco configuration :
Interface GigabitEthernet0/23
description Cust: Nsia (********)
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 35,200
switchport mode trunk
With this configuration it doesn't work and i don't understand why !
If i add "switchport trunk native vlan 35" on cisco configuration, it is OK,
but i don't want to have to specify the native vlan on my cisco ...
Thank's for your notice
Maxime JEGO
Netensia
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