Re: Question about fast-leave implementation

"Beeram, Suresh KumarReddy" <[email protected]> Fri, 29 Oct 2010 18:21:27 +0000
Newsgroups	gmane.ietf.magma
Message-ID	<23E658492CE48649B5B5168EBC60387842C80B2890@GVW1101EXC.americas.hpqcorp.net>
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Hi Kunal,
Eventhough Fast-leave enabled on interface if no of hosts greater than one =
for particular group we need to send query..
Only difference with normal behavior was when no of hosts is only one. Then=
 FL enabled interface immediately deletes
cache entry without sending Query

Apart from that no other reason to send out query on FL enabled interface..

Thanks
B Suresh Reddy
From: [email protected] [mailto:[email protected]] On Behalf Of K=
unal Shah
Sent: Friday, October 29, 2010 4:17 AM
To: [email protected]
Subject: [magma] Question about fast-leave implementation

Hi all,

Is there any reason to send out a query in fast-leave is enabled on the int=
erface?? Enabling fast-leave allows deleting the cache immediately on recei=
ving a leave. If the cache is deleted immediately, hosts on the interface w=
ill see traffic loss, which makes me think that fast-leave is enabled when =
the interface is gauranteed to receive a leave when the last host goes away=
 or there is only one host on the interface. So does it make any sense in s=
ending out a query on receiving a leave if fast-leave is enabled??

Thanks
Kunal


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<p class=3DMsoNormal><span style=3D'font-size:11.0pt;font-family:"Calibri",=
"sans-serif";
color:#1F497D'>Hi Kunal,<o:p></o:p></span></p>

<p class=3DMsoNormal><span style=3D'font-size:11.0pt;font-family:"Calibri",=
"sans-serif";
color:#1F497D'>Eventhough Fast-leave enabled on interface if no of hosts
greater than one for particular group we need to send query..<o:p></o:p></s=
pan></p>

<p class=3DMsoNormal><span style=3D'font-size:11.0pt;font-family:"Calibri",=
"sans-serif";
color:#1F497D'>Only difference with normal behavior was when no of hosts is
only one. Then FL enabled interface immediately deletes <o:p></o:p></span><=
/p>

<p class=3DMsoNormal><span style=3D'font-size:11.0pt;font-family:"Calibri",=
"sans-serif";
color:#1F497D'>cache entry without sending Query<o:p></o:p></span></p>

<p class=3DMsoNormal><span style=3D'font-size:11.0pt;font-family:"Calibri",=
"sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=3DMsoNormal><span style=3D'font-size:11.0pt;font-family:"Calibri",=
"sans-serif";
color:#1F497D'>Apart from that no other reason to send out query on FL enab=
led
interface..<o:p></o:p></span></p>

<p class=3DMsoNormal><span style=3D'font-size:11.0pt;font-family:"Calibri",=
"sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=3DMsoNormal><span style=3D'font-size:11.0pt;font-family:"Calibri",=
"sans-serif";
color:#1F497D'>Thanks<o:p></o:p></span></p>

<p class=3DMsoNormal><span style=3D'font-size:11.0pt;font-family:"Calibri",=
"sans-serif";
color:#1F497D'>B Suresh Reddy<o:p></o:p></span></p>

<div>

<div style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'>

<p class=3DMsoNormal><b><span style=3D'font-size:10.0pt;font-family:"Tahoma=
","sans-serif"'>From:</span></b><span
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
[email protected] [mailto:[email protected]] <b>On Behalf Of </b>=
Kunal
Shah<br>
<b>Sent:</b> Friday, October 29, 2010 4:17 AM<br>
<b>To:</b> [email protected]<br>
<b>Subject:</b> [magma] Question about fast-leave implementation<o:p></o:p>=
</span></p>

</div>

</div>

<p class=3DMsoNormal><o:p>&nbsp;</o:p></p>

<div>

<p class=3DMsoNormal><span style=3D'font-size:10.0pt;font-family:"Arial","s=
ans-serif"'>Hi
all,<o:p></o:p></span></p>

</div>

<div>

<p class=3DMsoNormal><span style=3D'font-size:10.0pt;font-family:"Arial","s=
ans-serif"'>&nbsp;<o:p></o:p></span></p>

</div>

<div>

<p class=3DMsoNormal><span style=3D'font-size:10.0pt;font-family:"Arial","s=
ans-serif"'>Is
there any reason to send out a query in fast-leave is enabled on the
interface?? Enabling fast-leave allows deleting the cache immediately on
receiving a leave. If the cache is deleted immediately, hosts on the interf=
ace
will see traffic loss, which makes me think that fast-leave is enabled when=
 the
interface is gauranteed to receive a leave when the last host goes away or
there is only one host on the interface. So does it make any sense in sendi=
ng
out a query on receiving a leave if fast-leave is enabled??<o:p></o:p></spa=
n></p>

</div>

<div>

<p class=3DMsoNormal><span style=3D'font-size:10.0pt;font-family:"Arial","s=
ans-serif"'>&nbsp;<o:p></o:p></span></p>

</div>

<div>

<p class=3DMsoNormal><span style=3D'font-size:10.0pt;font-family:"Arial","s=
ans-serif"'>Thanks<o:p></o:p></span></p>

</div>

<div>

<p class=3DMsoNormal><span style=3D'font-size:10.0pt;font-family:"Arial","s=
ans-serif"'>Kunal<o:p></o:p></span></p>

</div>

<div>

<p class=3DMsoNormal><span style=3D'font-size:10.0pt;font-family:"Arial","s=
ans-serif"'>&nbsp;<o:p></o:p></span></p>

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