Open Stack

Hi Lei,

 

Perhaps this article I wrote on the packetpushers.net blog can be helpful to you --

http://packetpushers.net/openstack-quantum-network-implementation-in-linux/

 

Best,

Will


 


From: Lei Zhang
Sent: ‎February‎ ‎6‎, ‎2013 ‎1‎:‎40‎ ‎AM
To: openstack at lists.launchpad.net
Subject: Re: [Openstack] How the linux bridge work in Quantum



I am following the steps from http://d.hatena.ne.jp/enakai00/20121118/1353226066




On Wed, Feb 6, 2013 at 2:36 PM, Lei Zhang <zhang.lei.fly at gmail.com> wrote:




Directly, here is the issue I meet. 

I start a all-in-one openstack Folsom with Quantum network( using linux bridge plugin) 
First I can not ping outside of the host. Following is the network setting. I think this should be work. But I can ping 10.10.0.1(gate way) in the host
Second, what's the usage for ns-1c37cab7-6b qg-82fef397-e1 qg-82fef397-e1, they are attached on nothing bridge. 
eth0: public Ethernet 10.10.0.0/24
eth1: private Ethernet 192.168.101.0/24
eth2: manage Ethernet 10.12.0.0/24

[root at all-in-one ~]# brctl show
bridge name    bridge id        STP enabled    interfaces
brq3958ea96-9d        8000.080027f1f512    no        eth0
                            tap82fef397-e1
brq399d07f4-8c        8000.080027b61c6f    no        eth1.101
                            tap1c37cab7-6b
                            tap21afddbd-80
                            tap629410b3-2d

Part of ip link 
[root at all-in-one ~]# ip link 

2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 08:00:27:f1:f5:12 brd ff:ff:ff:ff:ff:ff
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 08:00:27:b6:1c:6f brd ff:ff:ff:ff:ff:ff
10: eth1.101 at eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP 
    link/ether 08:00:27:b6:1c:6f brd ff:ff:ff:ff:ff:ff

Part of ip addr 
[root at all-in-one instance-00000005]# ip a

2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 08:00:27:f1:f5:12 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::a00:27ff:fef1:f512/64 scope link 
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 08:00:27:b6:1c:6f brd ff:ff:ff:ff:ff:ff
    inet6 fe80::a00:27ff:feb6:1c6f/64 scope link 
       valid_lft forever preferred_lft forever
8: qr-21afddbd-80: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 22:af:8e:70:bf:43 brd ff:ff:ff:ff:ff:ff
    inet 192.168.101.1/24 brd 192.168.101.255 scope global qr-21afddbd-80
    inet6 fe80::20af:8eff:fe70:bf43/64 scope link 
       valid_lft forever preferred_lft forever
10: eth1.101 at eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP 
    link/ether 08:00:27:b6:1c:6f brd ff:ff:ff:ff:ff:ff
    inet6 fe80::a00:27ff:feb6:1c6f/64 scope link 
       valid_lft forever preferred_lft forever
11: brq399d07f4-8c: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 
    link/ether 08:00:27:b6:1c:6f brd ff:ff:ff:ff:ff:ff
    inet6 fe80::a0ef:23ff:fe72:8085/64 scope link 
       valid_lft forever preferred_lft forever
12: qg-82fef397-e1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 42:de:03:55:d6:96 brd ff:ff:ff:ff:ff:ff
    inet 10.10.0.2/24 brd 10.10.0.255 scope global qg-82fef397-e1
    inet6 fe80::40de:3ff:fe55:d696/64 scope link 
       valid_lft forever preferred_lft forever
14: brq3958ea96-9d: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 
    link/ether 08:00:27:f1:f5:12 brd ff:ff:ff:ff:ff:ff
    inet 10.10.0.200/24 brd 10.10.0.255 scope global brq3958ea96-9d
    inet6 fe80::b4a2:c5ff:fe8c:3b1c/64 scope link 
       valid_lft forever preferred_lft forever
15: ns-1c37cab7-6b: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 2e:0d:c2:31:23:23 brd ff:ff:ff:ff:ff:ff
    inet 192.168.101.2/24 brd 192.168.101.255 scope global ns-1c37cab7-6b
    inet6 fe80::2c0d:c2ff:fe31:2323/64 scope link 
       valid_lft forever preferred_lft forever

ip route  
[root at all-in-one instance-00000005]# ip r 
192.168.101.0/24 dev ns-1c37cab7-6b  proto kernel  scope link  src 192.168.101.2 
192.168.101.0/24 dev qr-21afddbd-80  proto kernel  scope link  src 192.168.101.1 
10.10.0.0/24 dev qg-82fef397-e1  proto kernel  scope link  src 10.10.0.2 
10.10.0.0/24 dev brq3958ea96-9d  proto kernel  scope link  src 10.10.0.200 
10.12.0.0/24 dev eth2  proto kernel  scope link  src 10.12.0.2 
169.254.0.0/16 dev eth1  scope link  metric 1003 
default via 10.10.0.1 dev brq3958ea96-9d  metric 100






On Wed, Feb 6, 2013 at 1:31 PM, Lei Zhang <zhang.lei.fly at gmail.com> wrote:


Hi all, 
I am learning the Quantum project. But I am confused about the whole

architecture. Is there any article to explain how the package flow in the 

network model, which will help me to debug the network issue.

For example, how the ping package flow from the VMs to the external internet? 



-- 

Lei Zhang




Blog: http://jeffrey4l.github.com

twitter/weibo: @jeffrey4l





-- 

Lei Zhang




Blog: http://jeffrey4l.github.com

twitter/weibo: @jeffrey4l





-- 

Lei Zhang




Blog: http://jeffrey4l.github.com

twitter/weibo: @jeffrey4l
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