Greetings!
I’ve installed OVS with some NSH patches using these instructions:
https://github.com/yyang13/ovs_nsh_patches/blob/master/README.md. I ended up
building an rpm from the resulting package and installed from that. Here’s
version output:
[root@prv-10-11-ksupp user]# ovs-vsctl -V
ovs-vsctl (Open vSwitch) 2.5.90
Compiled May 6 2016 11:59:34
DB Schema 7.12.1
My configuration is very simple as seen here:
[root@prv-10-11-ksupp user]# ovs-vsctl show
4f8721e2-43a2-4cf0-b43c-bb74b51904ac
Bridge "br0"
Port "br0"
Interface "br0"
type: internal
Port "vnet0"
Interface "vnet0"
Port "vnet1"
Interface "vnet1"
ovs_version: “2.5.90"
and, at this point, I just want traffic to flow between 2 vm’s on the host
itself, hence this flow:
[root@prv-10-11-ksupp user]# ovs-ofctl dump-flows br0
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=63144.743s, table=0, n_packets=0, n_bytes=0,
idle_age=63144, priority=0 actions=NORMAL
Super simple install it would appear, yet I can’t get vm1 to talk to vm2
through br0… I switch it out for a linux bridge and it works fine, but ovs is a
no go… Here are the log entries that are consistently filling my logs during a
test ping (that fails) between the vm’s:
May 10 11:21:09 prv-10-11-ksupp ovs-vswitchd:
ovs|01944|odp_util(handler19)|ERR|Dropped 5 log messages in last 5 seconds
(most recently, 1 seconds ago) due to excessive rate
May 10 11:21:09 prv-10-11-ksupp ovs-vswitchd:
ovs|01945|odp_util(handler19)|ERR|attribute tcp_flags has length 4 but should
have length 2
May 10 11:21:15 prv-10-11-ksupp ovs-vswitchd:
ovs|01946|odp_util(handler19)|ERR|Dropped 5 log messages in last 5 seconds
(most recently, 1 seconds ago) due to excessive rate
May 10 11:21:15 prv-10-11-ksupp ovs-vswitchd:
ovs|01947|odp_util(handler19)|ERR|attribute tcp_flags has length 4 but should
have length 2
May 10 11:21:21 prv-10-11-ksupp ovs-vswitchd:
ovs|01948|odp_util(handler19)|ERR|Dropped 5 log messages in last 5 seconds
(most recently, 1 seconds ago) due to excessive rate
May 10 11:21:21 prv-10-11-ksupp ovs-vswitchd:
ovs|01949|odp_util(handler19)|ERR|attribute tcp_flags has length 4 but should
have length 2
May 10 11:21:27 prv-10-11-ksupp ovs-vswitchd:
ovs|01950|odp_util(handler19)|ERR|Dropped 8 log messages in last 5 seconds
(most recently, 1 seconds ago) due to excessive rate
May 10 11:21:27 prv-10-11-ksupp ovs-vswitchd:
ovs|01951|odp_util(handler19)|ERR|attribute tcp_flags has length 4 but should
have length 2
When I stop a ping, the logs stop. Also here’s the output of ova-dbctl show:
[root@prv-10-11-ksupp user]# ovs-dpctl show
system@ovs-system:
lookups: hit:0 missed:3819 lost:0
flows: 0
masks: hit:0 total:0 hit/pkt:0.00
port 0: ovs-system (internal)
port 1: br0 (internal)
port 2: vnet0
port 3: vnet1
Any idea’s why this might be happening? tcpdumping on the on the vnet shows the
icmp traffic leaving vm1 but I don’t see anything if I tcpdump on br0…
Thanks in advance!
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