snow-covered road ！
Solaris 10 : how to assign IPv4 and IPv6 addresses temporally with ifconfig
small tips
[ IPv4 ]
e1000g1 is an interface name.
[ IPv6 ]
e1000g1 is an interface name.
An IPv6 address seems to be added to an alias interface ( in this case , e1000g1:1 )
| bash-3.2# uname –a SunOS unknown 5.10 Generic_147441-01 i86pc i386 i86pc |
[ IPv4 ]
e1000g1 is an interface name.
| # ifconfig e1000g1 plumb up # ifconfig e1000g1 192.168.0.1/24 up |
[ IPv6 ]
e1000g1 is an interface name.
An IPv6 address seems to be added to an alias interface ( in this case , e1000g1:1 )
| # ifconfig e1000g1 inet6 plumb up # ifconfig e1000g1 inet6 addif aaaa::bbbb/64 up Created new logical interface e1000g1:1 # ifconfig -a e1000g1:1: flags=2000841<UP,RUNNING,MULTICAST,IPv6> mtu 1500 index 3 inet6 aaaa::bbbb/64 |
How to have Solaris 10 x86 VM running within ESXi recognize vNICs
I’ve installed Solaris 10 on ESXi as a virtual machine.
After finishing the installation , I added two additional vNICs to the VM.
However Solaris VM does not seem to recognize vNICs I added to the VM.
The VM has totally three vNICs ( driver is e1000 )
e1000g0 is the vNIC I added when installing Solaris.
There are no two vNICs I added to the VM after the installation
dmesg
check “/etc/path_to_inst” file
Seen from the logs , the VM seems to recognize vNICs at the hardware level.
enable e1000g1 and e1000g2 with ifconfig.
The VM has recognized all vNICs
Seen from the man of “ifconfig” , it describes :
| # uname –a SunOS unknown 5.10 Generic_147441-01 i86pc i386 i86pc |
After finishing the installation , I added two additional vNICs to the VM.
However Solaris VM does not seem to recognize vNICs I added to the VM.
The VM has totally three vNICs ( driver is e1000 )
e1000g0 is the vNIC I added when installing Solaris.
| # ifconfig e1000g0 e1000g0: flags=1004843<UP,BROADCAST,RUNNING,MULTICAST,DHCP,IPv4> mtu 1500 index 2 inet 192.168.11.215 netmask ffffff00 broadcast 192.168.11.255 ether aa:aa |
There are no two vNICs I added to the VM after the installation
| bash-3.2# ifconfig e1000g1 ifconfig: status: SIOCGLIFFLAGS: e1000g1: no such interface bash-3.2# ifconfig e1000g2 ifconfig: status: SIOCGLIFFLAGS: e1000g2: no such interface |
dmesg
| bash-3.2# dmesg | grep e1000g | grep register Dec 26 22:37:06 unknown mac: [ID 469746 kern.info] NOTICE: e1000g0 registered Dec 26 22:37:37 unknown mac: [ID 469746 kern.info] NOTICE: e1000g1 registered Dec 26 22:37:37 unknown mac: [ID 469746 kern.info] NOTICE: e1000g2 registered Dec 26 22:37:59 unknown mac: [ID 736570 kern.info] NOTICE: e1000g1 unregistered Dec 26 22:37:59 unknown mac: [ID 736570 kern.info] NOTICE: e1000g2 unregistered |
check “/etc/path_to_inst” file
| bash-3.2# egrep e1000 /etc/path_to_inst "/pci@0,0/pci15ad,790@11/pci15ad,750@0" 0 "e1000g" "/pci@0,0/pci15ad,790@11/pci15ad,750@2" 1 "e1000g" "/pci@0,0/pci15ad,790@11/pci15ad,750@3" 2 "e1000g" |
Seen from the logs , the VM seems to recognize vNICs at the hardware level.
enable e1000g1 and e1000g2 with ifconfig.
| bash-3.2# ifconfig e1000g1 plumb bash-3.2# ifconfig e1000g2 plumb |
The VM has recognized all vNICs
| bash-3.2# ifconfig e1000g1 e1000g1: flags=1000842<BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3 inet 0.0.0.0 netmask 0 ether zz:zz bash-3.2# ifconfig e1000g2 e1000g2: flags=1000842<BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 4 inet 0.0.0.0 netmask 0 ether zz:zz |
Seen from the man of “ifconfig” , it describes :
| plumb Open the device associated with the physical interface name and set up the streams needed for IP to use the device. When used with a logical interface name, this command is used to create a specific named logical interface. An interface must be separately plumbed for use by IPv4 and IPv6. The address_family parameter con- trols whether the ifconfig command applies to IPv4 or IPv6. Before an interface has been plumbed, the interface will not show up in the output of the ifconfig -a command. |
how to use Mininet part 1
Here’s sample usage of Mininet.
just referred to http://mininet.github.com/walkthrough/
I am using Mininet VM provided by Mininet github which is running within KVM.
[ sample operations ]
log onto the Mininet VM and become root user.
run mininet ( mn )
mn is python script.
rum mn
get info about nodes , links and all nodes
There are two hosts , “h2 and h3” and one switch “s1” and one controller “c0”
an output of ifconfig on “h2” host.
s1
send ping to h3 from h2
send ping to all nodes
run web server on h2
get an web content from h3
In my environment , it took around 15 seconds to get the content.
stop web server on h2
check PID
kill process
run regression tests which Mininet has
ping
iperf
exit
run mn with debug mode
- customize topologies
there’s a sample python script “topo-2sw-2host.py” under /home/openflow/mininet/custom
directory.
two hosts ( h1 and h2 )
two switches ( s3 and s4 )
run mn with topo-2sw-2host.py
get h2 host info
down/up links
run four hosts and access to the hosts over SSH
run sample script
access to the h1 over SSH
open another terminal and access to the h1
just referred to http://mininet.github.com/walkthrough/
I am using Mininet VM provided by Mininet github which is running within KVM.
[ sample operations ]
log onto the Mininet VM and become root user.
| openflow@mininet-vm:~$ sudo su - root@mininet-vm:~# |
run mininet ( mn )
mn is python script.
| root@mininet-vm:~# which mn /usr/local/bin/mn root@mininet-vm:~# cat /usr/local/bin/mn #!/usr/bin/python # EASY-INSTALL-SCRIPT: 'mininet==0.0.0','mn' __requires__ = 'mininet==0.0.0' import pkg_resources pkg_resources.run_script('mininet==0.0.0', 'mn') |
rum mn
| root@mininet-vm:~# mn *** Loading openvswitch_mod *** Adding controller *** Creating network *** Adding hosts: h2 h3 *** Adding switches: s1 *** Adding links: (s1, h2) (s1, h3) *** Configuring hosts h2 h3 *** Starting controller *** Starting 1 switches s1 *** Starting CLI: mininet> |
get info about nodes , links and all nodes
| mininet> nodes available nodes are: c0 h3 h2 s1 mininet> net s1 <-> h2-eth0 h3-eth0 mininet> dump c0: IP=127.0.0.1 intfs= pid=1218 s1: IP=None intfs=s1-eth1,s1-eth2 pid=1221 h2: IP=10.0.0.2 intfs=h2-eth0 pid=1219 h3: IP=10.0.0.3 intfs=h3-eth0 pid=1220 mininet> |
There are two hosts , “h2 and h3” and one switch “s1” and one controller “c0”
an output of ifconfig on “h2” host.
| mininet> h2 ifconfig h2-eth0 Link encap:Ethernet HWaddr 8e:6b:ff:e6:5c:91 inet addr:10.0.0.2 Bcast:10.255.255.255 Mask:255.0.0.0 |
| ininet> h3 ifconfig h3-eth0 Link encap:Ethernet HWaddr 6e:ce:21:9e:a7:de inet addr:10.0.0.3 Bcast:10.255.255.255 Mask:255.0.0.0 |
s1
| mininet> s1 ifconfig eth0 Link encap:Ethernet HWaddr 52:54:00:fa:e0:d1 inet addr:192.168.10.253 Bcast:192.168.10.255 Mask:255.255.255.0 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 s1-eth1 Link encap:Ethernet HWaddr a2:92:fb:c4:fc:52 inet6 addr: fe80::a092:fbff:fec4:fc52/64 Scope:Link s1-eth2 Link encap:Ethernet HWaddr 06:93:f8:db:73:ad inet6 addr: fe80::493:f8ff:fedb:73ad/64 Scope:Link |
send ping to h3 from h2
| mininet> h2 ping -c 1 h3 PING 10.0.0.3 (10.0.0.3) 56(84) bytes of data. 64 bytes from 10.0.0.3: icmp_req=1 ttl=64 time=4.75 ms --- 10.0.0.3 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 4.753/4.753/4.753/0.000 ms |
send ping to all nodes
| mininet> pingall *** Ping: testing ping reachability h2 -> h3 h3 -> h2 *** Results: 0% dropped (0/2 lost) |
run web server on h2
| mininet> h2 python -m SimpleHTTPServer 80 & |
get an web content from h3
In my environment , it took around 15 seconds to get the content.
| mininet> h3 wget -O - h2 --2012-12-20 18:15:48-- http://10.0.0.2/ Connecting to 10.0.0.2:80... connected. HTTP request sent, awaiting response... 200 OK Length: 370 [text/html] Saving to: `STDOUT' <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html> <title>Directory listing for /</title> <body> <h2>Directory listing for /</h2> <hr> <ul> <li><a href=".aptitude/">.aptitude/</a> <li><a href=".bash_history">.bash_history</a> <li><a href=".bashrc">.bashrc</a> <li><a href=".profile">.profile</a> <li><a href=".viminfo">.viminfo</a> </ul> <hr> </body> </html> 0K 100% 42.5M=0s 2012-12-20 18:16:08 (42.5 MB/s) - written to stdout [370/370] mininet> |
stop web server on h2
check PID
| mininet> h2 ps aux | grep python | grep -v grep root 944 0.0 1.9 16536 9772 ttyS0 R+ 17:47 0:00 /usr/bin/python /usr/local/bin/mn root 1030 0.0 1.1 11940 5764 ? SN 18:14 0:00 python -m SimpleHTTPServer 80 mininet> h2 kill 1030 |
kill process
| mininet> h2 kill 1030 |
run regression tests which Mininet has
ping
| mininet> dump c0: IP=127.0.0.1 intfs= pid=956 s1: IP=None intfs=s1-eth1,s1-eth2 pid=959 h2: IP=10.0.0.2 intfs=h2-eth0 pid=957 h3: IP=10.0.0.3 intfs=h3-eth0 pid=958 mininet> pingpair h2 -> h3 h3 -> h2 *** Results: 0% dropped (0/2 lost) |
iperf
| mininet> iperf *** Iperf: testing TCP bandwidth between h2 and h3 *** Results: ['3.88 Gbits/sec', '3.88 Gbits/sec'] |
exit
| mininet> exit *** Stopping 2 hosts h2 h3 *** Stopping 1 switches s1.. *** Stopping 1 controllers *** Done completed in 7.443 seconds root@mininet-vm:~# |
run mn with debug mode
| root@mininet-vm:~# mn -v debug *** openvswitch_mod already loaded *** Adding controller *** Creating network *** Adding hosts: h2 h3 *** Adding switches: s1 *** Adding links: *** h2 : ('ip link show',) 17: lo: <LOOPBACK> mtu 16436 qdisc noop state DOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 19: h2-eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether 9a:e3:c2:9e:af:fd brd ff:ff:ff:ff:ff:ff (s1, h2) *** h3 : ('ip link show',) 18: lo: <LOOPBACK> mtu 16436 qdisc noop state DOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 21: h3-eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether 82:84:4d:91:6a:c9 brd ff:ff:ff:ff:ff:ff (s1, h3) *** Configuring hosts *** h2 : ('ifconfig', 'h2-eth0', '10.0.0.2/8', 'up') *** h2 : ('ip route flush root 0/0',) *** h2 : ('route add default h2-eth0',) h2 *** h3 : ('ifconfig', 'h3-eth0', '10.0.0.3/8', 'up') *** h3 : ('ip route flush root 0/0',) *** h3 : ('route add default h3-eth0',) h3 *** Starting controller *** c0 : ('controller -v ptcp:6633 1>/tmp/c0.log 2>/tmp/c0.log&',) *** Starting 1 switches s1 *** s1 : ('ovs-dpctl add-dp dp0',) *** s1 : ('ovs-dpctl', 'add-if', 'dp0', 's1-eth1 s1-eth2') *** s1 : ('ovs-openflowd dp0 tcp:127.0.0.1:6633 --fail=secure --listen=ptcp:6634 --datapath-id=0000000000000001 1>/tmp/s1-ofp.log 2>/tmp/s1-ofp.log&',) *** Starting CLI: mininet> dump c0: IP=127.0.0.1 intfs= pid=1223 *** s1 : ('ifconfig s1-eth2',) s1-eth2 Link encap:Ethernet HWaddr b6:87:52:62:69:f8 inet6 addr: fe80::b487:52ff:fe62:69f8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5 errors:0 dropped:0 overruns:0 frame:0 TX packets:10 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:398 (398.0 B) TX bytes:796 (796.0 B) s1: IP=None intfs=s1-eth1,s1-eth2 pid=1226 *** h2 : ('ifconfig h2-eth0',) h2-eth0 Link encap:Ethernet HWaddr 9a:e3:c2:9e:af:fd inet addr:10.0.0.2 Bcast:10.255.255.255 Mask:255.0.0.0 inet6 addr: fe80::98e3:c2ff:fe9e:affd/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:10 errors:0 dropped:0 overruns:0 frame:0 TX packets:5 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:796 (796.0 B) TX bytes:398 (398.0 B) h2: IP=10.0.0.2 intfs=h2-eth0 pid=1224 *** h3 : ('ifconfig h3-eth0',) h3-eth0 Link encap:Ethernet HWaddr 82:84:4d:91:6a:c9 inet addr:10.0.0.3 Bcast:10.255.255.255 Mask:255.0.0.0 inet6 addr: fe80::8084:4dff:fe91:6ac9/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:10 errors:0 dropped:0 overruns:0 frame:0 TX packets:5 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:796 (796.0 B) TX bytes:398 (398.0 B) h3: IP=10.0.0.3 intfs=h3-eth0 pid=1225 mininet> mininet> iperf *** Iperf: testing TCP bandwidth between h2 and h3 *** h3 : ('killall -9 iperf',) iperf: no process found *** h2 : ('sh -c "echo A | telnet -e A 10.0.0.3 5001"',) Telnet escape character is 'A'. Trying 10.0.0.3... Connected to 10.0.0.3. Escape character is 'A'. telnet> Connection closed. *** h2 : ('iperf -t 5 -c 10.0.0.3 ',) ------------------------------------------------------------ Client connecting to 10.0.0.3, TCP port 5001 TCP window size: 16.0 KByte (default) ------------------------------------------------------------ [ 3] local 10.0.0.2 port 52003 connected with 10.0.0.3 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 5.0 sec 2.15 GBytes 3.69 Gbits/sec Client output: ------------------------------------------------------------ Client connecting to 10.0.0.3, TCP port 5001 TCP window size: 16.0 KByte (default) ------------------------------------------------------------ [ 3] local 10.0.0.2 port 52003 connected with 10.0.0.3 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 5.0 sec 2.15 GBytes 3.69 Gbits/sec ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ------------------------------------------------------------ [ 4] local 10.0.0.3 port 5001 connected with 10.0.0.2 port 52002 [ ID] Interval Transfer Bandwidth [ 4] 0.0- 0.0 sec 0.00 Bytes 0.00 bits/sec [ 5] local 10.0.0.3 port 5001 connected with 10.0.0.2 port 52003 [ 5] 0.0- 5.0 sec 2.15 GBytes 3.69 Gbits/sec Server output: ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ------------------------------------------------------------ [ 4] local 10.0.0.3 port 5001 connected with 10.0.0.2 port 52002 [ ID] Interval Transfer Bandwidth [ 4] 0.0- 0.0 sec 0.00 Bytes 0.00 bits/sec [ 5] local 10.0.0.3 port 5001 connected with 10.0.0.2 port 52003 [ 5] 0.0- 5.0 sec 2.15 GBytes 3.69 Gbits/sec *** Results: ['3.69 Gbits/sec', '3.69 Gbits/sec'] mininet> mininet> exit |
- customize topologies
there’s a sample python script “topo-2sw-2host.py” under /home/openflow/mininet/custom
directory.
two hosts ( h1 and h2 )
two switches ( s3 and s4 )
| root@mininet-vm:~# cat -n /home/openflow/mininet/custom/topo-2sw-2host.py 1 """Custom topology example 2 3 author: Brandon Heller (brandonh@stanford.edu) 4 5 Two directly connected switches plus a host for each switch: 6 7 host --- switch --- switch --- host 8 9 Adding the 'topos' dict with a key/value pair to generate our newly defined 10 topology enables one to pass in '--topo=mytopo' from the command line. 11 """ 12 13 from mininet.topo import Topo, Node 14 15 class MyTopo( Topo ): 16 "Simple topology example." 17 18 def __init__( self, enable_all = True ): 19 "Create custom topo." 20 21 # Add default members to class. 22 super( MyTopo, self ).__init__() 23 24 # Set Node IDs for hosts and switches 25 leftHost = 1 26 leftSwitch = 2 27 rightSwitch = 3 28 rightHost = 4 29 30 # Add nodes 31 self.add_node( leftSwitch, Node( is_switch=True ) ) 32 self.add_node( rightSwitch, Node( is_switch=True ) ) 33 self.add_node( leftHost, Node( is_switch=False ) ) 34 self.add_node( rightHost, Node( is_switch=False ) ) 35 36 # Add edges 37 self.add_edge( leftHost, leftSwitch ) 38 self.add_edge( leftSwitch, rightSwitch ) 39 self.add_edge( rightSwitch, rightHost ) 40 41 # Consider all switches and hosts 'on' 42 self.enable_all() 43 44 45 topos = { 'mytopo': ( lambda: MyTopo() ) } root@mininet-vm:~# |
run mn with topo-2sw-2host.py
| root@mininet-vm:~# mn --custom /home/openflow/mininet/custom/topo-2sw-2host.py --test iperf -v debug --topo mytopo custom in sys.argv *** openvswitch_mod already loaded *** Adding controller *** Creating network *** Adding hosts: h1 h4 *** Adding switches: s2 s3 *** Adding links: *** h1 : ('ip link show',) 38: lo: <LOOPBACK> mtu 16436 qdisc noop state DOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 41: h1-eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether fe:2d:67:92:55:26 brd ff:ff:ff:ff:ff:ff (h1, s2) (s2, s3) *** h4 : ('ip link show',) 39: lo: <LOOPBACK> mtu 16436 qdisc noop state DOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 44: h4-eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000 link/ether ca:11:19:56:86:e0 brd ff:ff:ff:ff:ff:ff (s3, h4) *** Configuring hosts *** h1 : ('ifconfig', 'h1-eth0', '10.0.0.1/8', 'up') *** h1 : ('ip route flush root 0/0',) *** h1 : ('route add default h1-eth0',) h1 *** h4 : ('ifconfig', 'h4-eth0', '10.0.0.4/8', 'up') *** h4 : ('ip route flush root 0/0',) *** h4 : ('route add default h4-eth0',) h4 *** Starting controller *** c0 : ('controller -v ptcp:6633 1>/tmp/c0.log 2>/tmp/c0.log&',) *** Starting 2 switches s2 *** s2 : ('ovs-dpctl add-dp dp0',) *** s2 : ('ovs-dpctl', 'add-if', 'dp0', 's2-eth1 s2-eth2') *** s2 : ('ovs-openflowd dp0 tcp:127.0.0.1:6633 --fail=secure --listen=ptcp:6634 --datapath-id=0000000000000002 1>/tmp/s2-ofp.log 2>/tmp/s2-ofp.log&',) s3 *** s3 : ('ovs-dpctl add-dp dp1',) *** s3 : ('ovs-dpctl', 'add-if', 'dp1', 's3-eth1 s3-eth2') *** s3 : ('ovs-openflowd dp1 tcp:127.0.0.1:6633 --fail=secure --listen=ptcp:6635 --datapath-id=0000000000000003 1>/tmp/s3-ofp.log 2>/tmp/s3-ofp.log&',) *** Iperf: testing TCP bandwidth between h1 and h4 *** h4 : ('killall -9 iperf',) iperf: no process found *** h1 : ('sh -c "echo A | telnet -e A 10.0.0.4 5001"',) Telnet escape character is 'A'. Trying 10.0.0.4... Connected to 10.0.0.4. Escape character is 'A'. telnet> Connection closed. *** h1 : ('iperf -t 5 -c 10.0.0.4 ',) ------------------------------------------------------------ Client connecting to 10.0.0.4, TCP port 5001 TCP window size: 69.3 KByte (default) ------------------------------------------------------------ [ 3] local 10.0.0.1 port 59865 connected with 10.0.0.4 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 5.0 sec 1.28 GBytes 2.21 Gbits/sec Client output: ------------------------------------------------------------ Client connecting to 10.0.0.4, TCP port 5001 TCP window size: 69.3 KByte (default) ------------------------------------------------------------ [ 3] local 10.0.0.1 port 59865 connected with 10.0.0.4 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 5.0 sec 1.28 GBytes 2.21 Gbits/sec [ 4] local 10.0.0.4 port 5001 connected with 10.0.0.1 port 59864 [ ID] Interval Transfer Bandwidth [ 4] 0.0- 0.0 sec 0.00 Bytes 0.00 bits/sec [ 5] local 10.0.0.4 port 5001 connected with 10.0.0.1 port 59865 [ 5] 0.0- 5.0 sec 1.28 GBytes 2.20 Gbits/sec Server output: ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ------------------------------------------------------------ [ 4] local 10.0.0.4 port 5001 connected with 10.0.0.1 port 59864 [ ID] Interval Transfer Bandwidth [ 4] 0.0- 0.0 sec 0.00 Bytes 0.00 bits/sec [ 5] local 10.0.0.4 port 5001 connected with 10.0.0.1 port 59865 [ 5] 0.0- 5.0 sec 1.28 GBytes 2.20 Gbits/sec *** Results: ['2.20 Gbits/sec', '2.21 Gbits/sec'] *** Stopping 2 hosts h1 h4 *** Stopping 2 switches s2*** s2 : ('kill %ovs-openflowd',) ..s3*** s3 : ('kill %ovs-openflowd',) .. *** Stopping 1 controllers *** c0 : ('kill %controller',) *** Done completed in 5.459 seconds root@mininet-vm:~# |
get h2 host info
| root@mininet-vm:~# mn mininet> py dir(h2) ['IP', 'MAC', '__class__', '__delattr__', '__dict__', '__doc__', '__format__', '__getattribute__', '__hash__', '__init__', '__module__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', '_ipMatchRegex', '_macMatchRegex', 'addIntf', 'args', 'cleanup', 'cmd', 'cmdPrint', 'connection', 'connectionsTo', 'defaultIP', 'defaultIntf', 'defaultMAC', 'deleteIntfs', 'execed', 'fdToNode', 'inNamespace', 'inToNode', 'intfIsUp', 'intfName', 'intfs', 'ips', 'lastCmd', 'lastPid', 'linkTo', 'macs', 'monitor', 'name', 'newPort', 'outToNode', 'pid', 'pollOut', 'portBase', 'ports', 'read', 'readbuf', 'readline', 'registerIntf', 'sendCmd', 'sendInt', 'setARP', 'setDefaultRoute', 'setHostRoute', 'setIP', 'setMAC', 'shell', 'stdin', 'stdout', 'stop', 'terminate', 'updateIP', 'updateMAC', 'waitOutput', 'waitReadable', 'waiting', 'write'] mininet> py h2.IP(),h2.MAC() ('10.0.0.2', 'f6:b3:d5:d4:6f:66') |
down/up links
| mininet> link s1 h2 down mininet> pingall *** Ping: testing ping reachability h2 -> X h3 -> X *** Results: 100% dropped (2/2 lost) mininet> mininet> link s1 h2 up mininet> pingall *** Ping: testing ping reachability h2 -> h3 h3 -> h2 *** Results: 0% dropped (0/2 lost) |
run four hosts and access to the hosts over SSH
run sample script
| root@mininet-vm:~# /home/openflow/mininet/examples/sshd.py *** Adding controller *** Creating network *** Adding hosts: h1 h2 h3 h4 *** Adding switches: s5 *** Adding links: (h1, s5) (h2, s5) (h3, s5) (h4, s5) *** Configuring hosts h1 h2 h3 h4 *** Starting controller *** Starting 1 switches s5 *** Hosts are running sshd at the following addresses: h1 10.0.0.1 h2 10.0.0.2 h3 10.0.0.3 h4 10.0.0.4 |
access to the h1 over SSH
open another terminal and access to the h1
| root@mininet-vm:~# ssh 10.0.0.1 -l openflow openflow@10.0.0.1's password: Welcome to Ubuntu 11.10 (GNU/Linux 3.0.0-12-generic i686) * Documentation: https://help.ubuntu.com/ New release '12.04 LTS' available. Run 'do-release-upgrade' to upgrade to it. Last login: Thu Dec 20 20:00:13 2012 from 10.123.123.1 openflow@mininet-vm:~$ ping 10.0.0.2 -c 1 PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data. 64 bytes from 10.0.0.2: icmp_req=1 ttl=64 time=4.90 ms --- 10.0.0.2 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 4.901/4.901/4.901/0.000 ms openflow@mininet-vm:~$ exit logout Connection to 10.0.0.1 closed. root@mininet-vm:~# |
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