广播风暴对比实验部署

编者按：环路广播风暴，如果有环路，数据帧将会在环路中来回传递，大量增生数据帧，形成广播风暴。在SDN中部分控制器可以抑制环路广播风暴的产生，如Floodlight，而像POX控制器，就不能很好的解决广播风暴的问题。

接下来将对Floodlight和POX控制器进行广播风暴实验的对比。

物理连接上OF1、OF2、OF3形成环路，使用Flowvisor（192.168.20.6:6634）隔离成两个虚网。VM1和VM3在一个虚网中，由POX（192.168.20.6:6635）控制，VM2和VM3在另一个虚网中，由Floodlight（192.168.20.6:6636）控制。

POX安装与配置

安装：

git clone http://github.com/noxrepo/pox

启动：

./pox.py forwarding.l2_learning openflow.of_01 --port=6635

Floodlight安装与安装

安装：

apt-get install build-essential default-jdk ant python-dev

git clone git://github.com/floodlight/floodlight.git

ant;

端口配置：

vi ./src/main/resources/floodlightdefault.properties

启动：

nohup java -jar target/floodlight.jar > /dev/null &

Flowvisor安装与配置

安装：

sudo apt-get install ant

sudo apt-get install openjdk-6-jdk

wget https://github.com/OPENNETWORKINGLAB/flowvisor/archive/1.2-MAINT.zip

make && make install

端口配置

vi /etc/flowvisor/config.json（目前使用监听端口6634）

普通用户下启动：

nohup flowvisor /etc/flowvisor/config.json >/dev/null &

OvS安装与配置

OvS在之前已经写过，详情可查看《Open vSwitch2.3.0版本安装部署及基本操作》。

创建虚网

创建两个slice，分别指定到POX和Floodlight上：

fvctl -p 8181 add-slice s1 tcp:127.0.0.1:6635 [email protected]

fvctl -p 8181 add-slice s2 tcp:127.0.0.1:6636 [email protected]

修改OvS的dpid：

192.168.20.3：ovs-vsctl set bridge br0 other_config:datapath-id=1000000000000001

192.168.20.4：ovs-vsctl set bridge br0 other_config:datapath-id=1000000000000002

192.168.20.5：ovs-vsctl set bridge br0 other_config:datapath-id=1000000000000003

[email protected]:~# ovs-vsctl list bridge br0

_uuid : 9a7f1e47-b5f1-410f-9a63-0393acf1a651

controller : [1ab5ceec-3965-47c4-89ab-1f1f408470bb]

datapath_id : "1000000000000001"

查看端口号：

[email protected]:~# ovs-ofctl show br0

OFPT_FEATURES_REPLY (xid=0x2): dpid:1000000000000001

n_tables:254, n_buffers:256

capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP

actions: OUTPUT SET_VLAN_VID SET_VLAN_PCP STRIP_VLAN SET_DL_SRC SET_DL_DST SET_NW_SRC SET_NW_DST SET_NW_TOS SET_TP_SRC SET_TP_DST ENQUEUE

1(vnet0): addr:fe:54:00:d4:fa:b1

config: 0

state: 0

current: 10MB-FD COPPER

speed: 10 Mbps now, 0 Mbps max

2(eth1): addr:74:86:7a:d7:65:65

config: 0

state: 0

current: 100MB-FD COPPER AUTO_NEG

advertised: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-HD 1GB-FD COPPER AUTO_NEG AUTO_PAUSE

supported: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-HD 1GB-FD COPPER AUTO_NEG

speed: 100 Mbps now, 1000 Mbps max

3(eth2): addr:74:86:7a:d7:65:66

config: 0

state: 0

current: 1GB-FD COPPER AUTO_NEG

advertised: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-HD 1GB-FD COPPER AUTO_NEG AUTO_PAUSE

supported: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-HD 1GB-FD COPPER AUTO_NEG

speed: 1000 Mbps now, 1000 Mbps max

LOCAL(br0): addr:74:86:7a:d7:65:65

config: 0

state: 0

speed: 0 Mbps now, 0 Mbps max

OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0

虚网隔离创建

执行以下脚本，创建flowspace：

DP1=1000000000000001

DP2=1000000000000002

DP3=1000000000000003

#s1-dpid1

fvctl -p 8181 add-flowspace -f 1 space1 $DP1 1 in_port=1,nw_dst=10.0.0.1 s1=7

fvctl -p 8181 add-flowspace -f 1 space1 $DP1 1 in_port=1,nw_src=10.0.0.1 s1=7

fvctl -p 8181 add-flowspace -f 1 space1 $DP1 1 in_port=2,nw_dst=10.0.0.1 s1=7

fvctl -p 8181 add-flowspace -f 1 space1 $DP1 1 in_port=2,nw_src=10.0.0.1 s1=7

fvctl -p 8181 add-flowspace -f 1 space1 $DP1 1 in_port=3,nw_dst=10.0.0.1 s1=7

fvctl -p 8181 add-flowspace -f 1 space1 $DP1 1 in_port=3,nw_src=10.0.0.1 s1=7

#s1-dpid2

fvctl -p 8181 add-flowspace -f 1 space1 $DP2 1 in_port=2,nw_dst=10.0.0.1 s1=7

fvctl -p 8181 add-flowspace -f 1 space1 $DP2 1 in_port=2,nw_src=10.0.0.1 s1=7

fvctl -p 8181 add-flowspace -f 1 space1 $DP2 1 in_port=3,nw_dst=10.0.0.1 s1=7

fvctl -p 8181 add-flowspace -f 1 space1 $DP2 1 in_port=3,nw_src=10.0.0.1 s1=7

#s1-dpid3

fvctl -p 8181 add-flowspace -f 1 space1 $DP3 1 in_port=1,nw_dst=10.0.0.1 s1=7

fvctl -p 8181 add-flowspace -f 1 space1 $DP3 1 in_port=1,nw_src=10.0.0.1 s1=7

fvctl -p 8181 add-flowspace -f 1 space1 $DP3 1 in_port=2,nw_dst=10.0.0.1 s1=7

fvctl -p 8181 add-flowspace -f 1 space1 $DP3 1 in_port=2,nw_src=10.0.0.1 s1=7

fvctl -p 8181 add-flowspace -f 1 space1 $DP3 1 in_port=3,nw_dst=10.0.0.1 s1=7

fvctl -p 8181 add-flowspace -f 1 space1 $DP3 1 in_port=3,nw_src=10.0.0.1 s1=7

#s2-dpid1

fvctl -p 8181 add-flowspace -f 2 space1 $DP1 1 in_port=2,nw_dst=10.0.0.2 s2=7

fvctl -p 8181 add-flowspace -f 2 space1 $DP1 1 in_port=2,nw_src=10.0.0.2 s2=7

fvctl -p 8181 add-flowspace -f 2 space1 $DP1 1 in_port=3,nw_dst=10.0.0.2 s2=7

fvctl -p 8181 add-flowspace -f 2 space1 $DP1 1 in_port=3,nw_src=10.0.0.2 s2=7

#s2-dpid2

fvctl -p 8181 add-flowspace -f 2 space1 $DP2 1 in_port=1,nw_dst=10.0.0.2 s2=7

fvctl -p 8181 add-flowspace -f 2 space1 $DP2 1 in_port=1,nw_src=10.0.0.2 s2=7

fvctl -p 8181 add-flowspace -f 2 space1 $DP2 1 in_port=2,nw_dst=10.0.0.2 s2=7

fvctl -p 8181 add-flowspace -f 2 space1 $DP2 1 in_port=2,nw_src=10.0.0.2 s2=7

fvctl -p 8181 add-flowspace -f 2 space1 $DP2 1 in_port=3,nw_dst=10.0.0.2 s2=7

fvctl -p 8181 add-flowspace -f 2 space1 $DP2 1 in_port=3,nw_src=10.0.0.2 s2=7

#s2-dpid3

fvctl -p 8181 add-flowspace -f 2 space1 $DP3 1 in_port=1,nw_dst=10.0.0.2 s2=7

fvctl -p 8181 add-flowspace -f 2 space1 $DP3 1 in_port=1,nw_src=10.0.0.2 s2=7

fvctl -p 8181 add-flowspace -f 2 space1 $DP3 1 in_port=2,nw_dst=10.0.0.2 s2=7

fvctl -p 8181 add-flowspace -f 2 space1 $DP3 1 in_port=2,nw_src=10.0.0.2 s2=7

fvctl -p 8181 add-flowspace -f 2 space1 $DP3 1 in_port=3,nw_dst=10.0.0.2 s2=7

fvctl -p 8181 add-flowspace -f 2 space1 $DP3 1 in_port=3,nw_src=10.0.0.2 s2=7

设置队列

OvS1设置队列，流量隔离

执行以下脚本设置队列：

#!/bin/bash

#clear config

ovs-vsctl del-br br0

ovs-vsctl -- --all destroy qos

ovs-vsctl -- --all destroy queue

ovs-vsctl add-br br0 -- set bridge br0 other_config:datapath-id=1000000000000001

ovs-vsctl set-controller br0 tcp:192.168.20.6:6634

ovs-vsctl set bridge br0 fail_mode=secure

virsh destroy vm3 //vm3为VM名称

sleep 5

virsh start vm3

sleep 5

ovs-vsctl add-port br0 eth1

ovs-vsctl add-port br0 eth2

#qos

ovs-vsctl set port eth1 [email protected] -- [email protected] create qos type=linux-htb\

[email protected],[email protected] other_config:max-rate=`ovs-vsctl get interface eth1 link-speed`\

-- [email protected] create queue other_config:min-rate=10000000\

-- [email protected] create queue other_config:min-rate=10000000

ovs-vsctl set port eth2 [email protected] -- [email protected] create qos type=linux-htb\

[email protected],[email protected] other_config:max-rate=`ovs-vsctl get interface eth2 link-speed`\

-- [email protected] create queue other_config:min-rate=10000000\

-- [email protected] create queue other_config:min-rate=10000000

OvS2设置队列，流量隔离

执行以下脚本设置队列：

#!/bin/bash

#clear config

ovs-vsctl del-br br0

ovs-vsctl -- --all destroy qos

ovs-vsctl -- --all destroy queue

ovs-vsctl add-br br0 -- set bridge br0 other_config:datapath-id=1000000000000002

ovs-vsctl set-controller br0 tcp:192.168.20.6:6634

ovs-vsctl set bridge br0 fail_mode=secure

virsh destroy vm4

sleep 5

virsh start vm4