I am now facing some problem about vlan settings over patch port with which
multiple datapaths are connected (here 2 datapaths). Before I ask my
questions, let me dump my current settings.
# ovs-vsctl show
55861161-6670-45cc-850e-aca38a9aab33
Bridge br0
Port patch_tun
trunks: [100]
Interface patch_tun
type: patch
options: {peer=patch_int}
Port "tap0"
tag: 100
Interface "tap0"
Port br0
Interface br0
type: internal
Bridge br1
Port br1
Interface br1
type: internal
Port "tap1"
tag: 100
Interface "tap1"
Port patch_int
trunks: [100]
Interface patch_int
type: patch
options: {peer=patch_tun}
# ovs-ofctl dump-flows br0
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=490.292s, table=0, n_packets=8033106,
n_bytes=840743327, idle_age=0,priority=0 actions=NORMAL
# ovs-ofctl dump-flows br1
NXST_FLOW reply (xid=0x4):
# ovs-vsctl list port patch_int
tag : []
trunks : [100]
# ovs-vsctl list port patch_tun
tag : []
trunks : [100]
# ovs-vsctl list port br0
tag : []
trunks : []
# ovs-vsctl list port tap0
tag : 100
trunks : []
# ovs-vsctl list port tap1
tag : 100
trunks : []
IP address:
br0 -> 10.0.1.1
tap0 -> 10.0.1.2
br1 -> 10.0.0.1
tap1 -> 10.0.0.2
My ultimate goal is ping from tap0(10.0.1.2) to tap1(10.0.0.2), and my
question is the following:
1. Do I really need to tag 100 on br0? If I omit tag=100 from br0, arp
request/reply will not succeed somehow. The arp request is then propagated
to br1 (I don't know why) which is totally useless.
2. In case I put tag=100 on br0, arp request somehow succeeds, but
subsequent icmp packets are not transferred to br1 from br0 through patch
port. Why does this happen?
I know I cannot achieve my ultimate goal even if the above 2 problems are
solved. (I still need to configure br1) But at least I need to figure out
why they happen, so if you all know something, please let me know.
Thanks,
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