Thanks for your help. I still have a question about flows in br-int.
In Muller's blog, he says "the source MAC is replaced from the remote machine’s
host MAC to that VM’s gateway MAC."
But in my local environment, the flows is "
table=1, n_packets=0, n_bytes=0, idle_age=10144,
priority=4,dl_vlan=1,dl_dst=fa:16:3e:1b:55:b1
actions=strip_vlan,mod_dl_src:fa:16:3e:50:66:fd,output:27
table=1, n_packets=0, n_bytes=0, idle_age=10130,
priority=4,dl_vlan=2,dl_dst=fa:16:3e:50:66:fd
actions=strip_vlan,mod_dl_src:fa:16:3e:50:66:fd,output:28
"
Port 27 and 28 belongs local vms. And, two qr interface's mac addresss are
fa:16:3e:1b:55:b1 and fa:16:3e:50:66:fd.
Flows in br-int are not match what Muller says in his blog. :-(
Could you explain it?
Thanks
Zhi Chang
------------------ Original ------------------
From: "James Denton"<james.den...@rackspace.com>;
Date: Sat, Mar 19, 2016 12:51 PM
To: "OpenStack Development Mailing List (not for usage
questions)"<openstack-dev@lists.openstack.org>;
Subject: Re: [openstack-dev] [neutron][dvr]What does table 9 used for inbr-tun?
Err… correction. Each host has a unique MAC, not each router. Sorry!
http://assafmuller.com/2015/04/15/distributed-virtual-routing-overview-and-eastwest-routing/
James
From: James Denton <james.den...@rackspace.com>
Reply-To: "OpenStack Development Mailing List (not for usage questions)"
<openstack-dev@lists.openstack.org>
Date: Friday, March 18, 2016 at 11:47 PM
To: "OpenStack Development Mailing List (not for usage questions)"
<openstack-dev@lists.openstack.org>
Subject: Re: [openstack-dev] [neutron][dvr]What does table 9 used for in
br-tun?
Each DVR router has a unique MAC address that can be found in the Neutron
DB in the dvr_host_macs table. Those will MACs will likely match what’s in the
flow rules there.
This presentation from the Paris summit (Page 19-20) breaks it down in some
detail.
https://www.openstack.org/assets/presentation-media/Openstack-kilo-summit-DVR-Architecture-20141030-Master-submitted-to-openstack.pdf
James
From: Zhi Chang <chang...@unitedstack.com>
Reply-To: "OpenStack Development Mailing List (not for usage questions)"
<openstack-dev@lists.openstack.org>
Date: Friday, March 18, 2016 at 11:33 PM
To: openstack-dev <openstack-dev@lists.openstack.org>
Subject: [openstack-dev] [neutron][dvr]What does table 9 used for in br-tun?
hi guys.
In DVR mode, I have some questions about flows of table 9 in br-tun. I see
these flows in br-tun:
cookie=0x9a5f42115762fc76, duration=392186.503s, table=9, n_packets=1,
n_bytes=90, idle_age=247, hard_age=65534, priority=1,dl_src=fa:16:3f:64:82:2f
actions=output:1
cookie=0x9a5f42115762fc76, duration=392186.447s, table=9, n_packets=0,
n_bytes=0, idle_age=65534, hard_age=65534, priority=1,dl_src=fa:16:3f:76:6c:6f
actions=output:1
cookie=0x9a5f42115762fc76, duration=392186.388s, table=9, n_packets=0,
n_bytes=0, idle_age=65534, hard_age=65534, priority=1,dl_src=fa:16:3f:87:39:a3
actions=output:1
cookie=0x9a5f42115762fc76, duration=392186.333s, table=9, n_packets=0,
n_bytes=0, idle_age=65534, hard_age=65534, priority=1,dl_src=fa:16:3f:93:41:45
actions=output:1
Port 1 is a patch interface which is connecting to br-int.
Question A: there are for mac addresses in these flows. But these mac
addresses don't in my Neutron. What do they come from??
Question B: The action of each flow is output:1, why? Why put the packets to
br-int?
Thanks
Zhi Chang__________________________________________________________________________
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