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Mon Dec 23 03:44:06 UTC 2013


Mininet 2.1 and openvswitch 1.10

Thank you


On Sun, Feb 2, 2014 at 10:08 PM, Allan Jie <allanmcgrady at gmail.com> wrote:

> Dear all,
>
> I start a network like 4 host and 1 switches.
> h1,h2,h3,h4 and s1.
>
> I know the dec_ttl action is for ipv4 packet and openflow 1.1+.
>
> So I have finished this command.
> ovs-vsctl set bridge s1 protocols=OpenFlow10,OpenFlow12,OpenFlow13
> And also use -O OpenFlow13 in ovs-ofctl.
> Like the following line:
> ovs-ofctl -O OpenFlow13 add-flow s1
> table=0,priority=65535,ip,in_port=1,vlan_tci=0x0000,dl_src=9e:60:7c:45:f2:b8,dl_dst=32:a2:19:d3:56:4f,nw_src=10.0.0.1,nw_dst=10.0.0.2,nw_proto=0,nw_tos=0,actions=output:2,dec_ttl
>
> Then in h1, I use the command
> h1 sendip -d dsf -p ipv4 -is 10.0.0.1 -id 10.0.0.2 10.0.0.2
> which will send an "ip packet" from h1 to h2.
>
> And then in h2, I use this command to listen the port.
> tcpdump ip host 10.0.0.1 -v
>
> But the result is I cannot see any changes of the ttl in the received
> packet. The ttl value is still 64.
>
> How can I change that? Please help.
>
> Thank you.
> Allan
>
>
> --
> Research student, final-year undergraduate
> Extreme Scale Network Computing and service laboratory(
> http://www.cloud-uestc.cn/cloud-uestc-EN/index.html),
> School of Computer Science & Engineering,
> University of Electronic Science and Technology of China(
> http://www.oice.uestc.edu.cn/en/).
> Website: http://www.allanjie.ml/
>



-- 
Research student, final-year undergraduate
Extreme Scale Network Computing and service laboratory(
http://www.cloud-uestc.cn/cloud-uestc-EN/index.html),
School of Computer Science & Engineering,
University of Electronic Science and Technology of China(
http://www.oice.uestc.edu.cn/en/).
Website: http://www.allanjie.ml/

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:tahoma,s=
ans-serif;font-size:small">From my last problem. My environment is the foll=
owing setup.</div><div class=3D"gmail_default" style=3D"font-family:tahoma,=
sans-serif;font-size:small">
<br></div><div class=3D"gmail_default" style=3D"font-family:tahoma,sans-ser=
if;font-size:small">Mininet 2.1 and openvswitch 1.10</div><div class=3D"gma=
il_default" style=3D"font-family:tahoma,sans-serif;font-size:small"><br></d=
iv><div class=3D"gmail_default" style=3D"font-family:tahoma,sans-serif;font=
-size:small">
Thank you</div></div><div class=3D"gmail_extra"><br><br><div class=3D"gmail=
_quote">On Sun, Feb 2, 2014 at 10:08 PM, Allan Jie <span dir=3D"ltr">&lt;<a=
 href=3D"mailto:allanmcgrady at gmail.com" target=3D"_blank">allanmcgrady at gmai=
l.com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div class=3D"gmail_default=
" style=3D"font-family:tahoma,sans-serif;font-size:small">Dear all,</div><d=
iv class=3D"gmail_default" style=3D"font-family:tahoma,sans-serif;font-size=
:small">
<br></div><div class=3D"gmail_default" style=3D"font-family:tahoma,sans-ser=
if;font-size:small">
I start a network like 4 host and 1 switches.</div><div class=3D"gmail_defa=
ult" style=3D"font-family:tahoma,sans-serif;font-size:small">h1,h2,h3,h4 an=
d s1.</div><div class=3D"gmail_default" style=3D"font-family:tahoma,sans-se=
rif;font-size:small">

<br></div><div class=3D"gmail_default" style=3D"font-family:tahoma,sans-ser=
if;font-size:small">I know the dec_ttl action is for ipv4 packet and openfl=
ow 1.1+.</div><div class=3D"gmail_default" style=3D"font-family:tahoma,sans=
-serif;font-size:small">

<br></div><div class=3D"gmail_default" style=3D"font-family:tahoma,sans-ser=
if;font-size:small">So I have finished this command.</div><div class=3D"gma=
il_default" style=3D"font-family:tahoma,sans-serif;font-size:small"><span s=
tyle=3D"font-size:12pt;line-height:107%;font-family:&#39;Calibri Light&#39;=
,sans-serif">ovs-vsctl set bridge s1 protocols=3DOpenFlow10,OpenFlow12,Open=
Flow13</span><br>

</div><div class=3D"gmail_default"><font face=3D"Calibri Light, sans-serif"=
><span style=3D"font-size:16px;line-height:17.1200008392334px">And also use=
 -O OpenFlow13 in ovs-ofctl.</span></font></div><div class=3D"gmail_default=
"><font face=3D"Calibri Light, sans-serif"><span style=3D"font-size:16px;li=
ne-height:17.1200008392334px">Like the following line:</span></font></div>

<div class=3D"gmail_default"><span style=3D"font-size:12pt;line-height:107%=
;font-family:&#39;Calibri Light&#39;,sans-serif">ovs-ofctl -O OpenFlow13 ad=
d-flow s1 table=3D0,priority=3D65535,ip,in_port=3D1,vlan_tci=3D0x0000,dl_sr=
c=3D9e:60:7c:45:f2:b8,dl_dst=3D32:a2:19:d3:56:4f,nw_src=3D10.0.0.1,nw_dst=
=3D10.0.0.2,nw_proto=3D0,nw_tos=3D0,actions=3Doutput:2,dec_ttl</span><font =
face=3D"Calibri Light, sans-serif"><span style=3D"font-size:16px;line-heigh=
t:17.1200008392334px"><br>

</span></font></div><div class=3D"gmail_default"><font face=3D"Calibri Ligh=
t, sans-serif"><span style=3D"font-size:16px;line-height:17.1200008392334px=
"><br></span></font></div><div class=3D"gmail_default"><font face=3D"tahoma=
, sans-serif"><span style=3D"font-size:16px;line-height:17.1200008392334px"=
>Then in h1, I use the command=A0</span></font></div>

<div><div class=3D"gmail_default" style=3D"font-family:tahoma,sans-serif;fo=
nt-size:small">h1 sendip -d dsf -p ipv4 -is 10.0.0.1 -id 10.0.0.2 10.0.0.2<=
/div><div class=3D"gmail_default" style=3D"font-family:tahoma,sans-serif;fo=
nt-size:small">

which will send an &quot;ip packet&quot; from h1 to h2.</div><div class=3D"=
gmail_default" style=3D"font-family:tahoma,sans-serif;font-size:small"><br>=
</div><div class=3D"gmail_default" style=3D"font-family:tahoma,sans-serif;f=
ont-size:small">

And then in h2, I use this command to listen the port.</div><div class=3D"g=
mail_default"><font face=3D"tahoma, sans-serif">tcpdump ip host 10.0.0.1 -v=
</font><br></div><div class=3D"gmail_default"><font face=3D"tahoma, sans-se=
rif"><br>

</font></div><div class=3D"gmail_default"><font face=3D"tahoma, sans-serif"=
>But the result is I cannot see any changes of the ttl in the received pack=
et. The ttl value is still 64.</font></div><div class=3D"gmail_default"><fo=
nt face=3D"tahoma, sans-serif"><br>

</font></div><div class=3D"gmail_default"><font face=3D"tahoma, sans-serif"=
>How can I change that? Please help.</font></div><div class=3D"gmail_defaul=
t"><font face=3D"tahoma, sans-serif"><br></font></div><div class=3D"gmail_d=
efault">

<font face=3D"tahoma, sans-serif">Thank you.</font></div><span class=3D"HOE=
nZb"><font color=3D"#888888"><div class=3D"gmail_default"><font face=3D"tah=
oma, sans-serif">Allan</font></div><div class=3D"gmail_default"><font face=
=3D"tahoma, sans-serif"><br>
</font></div><br></font></span></div><span class=3D"HOEnZb"><font color=3D"=
#888888">-- <br>
<div dir=3D"ltr"><span style><font face=3D"tahoma, sans-serif">Research stu=
dent, final-year undergraduate</font></span><div style><font face=3D"tahoma=
, sans-serif">Extreme Scale Network Computing and service laboratory(<a hre=
f=3D"http://www.cloud-uestc.cn/cloud-uestc-EN/index.html" target=3D"_blank"=
>http://www.cloud-uestc.cn/cloud-uestc-EN/index.html</a>),</font></div>

<div style><font face=3D"tahoma, sans-serif">School of Computer Science &am=
p; Engineering,</font></div><div style><font face=3D"tahoma, sans-serif">Un=
iversity of Electronic Science and Technology of China(<a href=3D"http://ww=
w.oice.uestc.edu.cn/en/" target=3D"_blank">http://www.oice.uestc.edu.cn/en/=
</a>).</font></div>

<div style><div><font face=3D"tahoma, sans-serif">Website:=A0</font><a href=
=3D"http://www.allanjie.ml/" target=3D"_blank">http://www.allanjie.ml/</a><=
/div></div></div>
</font></span></div>
</blockquote></div><br><br clear=3D"all"><div><br></div>-- <br><div dir=3D"=
ltr"><span style=3D"color:rgb(0,0,0)"><font face=3D"tahoma, sans-serif">Res=
earch student, final-year undergraduate</font></span><div style=3D"color:rg=
b(0,0,0)">
<font face=3D"tahoma, sans-serif">Extreme Scale Network Computing and servi=
ce laboratory(<a href=3D"http://www.cloud-uestc.cn/cloud-uestc-EN/index.htm=
l" target=3D"_blank">http://www.cloud-uestc.cn/cloud-uestc-EN/index.html</a=
>),</font></div>
<div style=3D"color:rgb(0,0,0)"><font face=3D"tahoma, sans-serif">School of=
 Computer Science &amp; Engineering,</font></div><div style=3D"color:rgb(0,=
0,0)"><font face=3D"tahoma, sans-serif">University of Electronic Science an=
d Technology of China(<a href=3D"http://www.oice.uestc.edu.cn/en/" target=
=3D"_blank">http://www.oice.uestc.edu.cn/en/</a>).</font></div>
<div style=3D"color:rgb(0,0,0)"><div><font face=3D"tahoma, sans-serif">Webs=
ite:=A0</font><a href=3D"http://www.allanjie.ml/" target=3D"_blank">http://=
www.allanjie.ml/</a></div></div></div>
</div>

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