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Hello Diego,<br>
<br>
Thank You very much. I will use this timer.<br>
<br>
I've just noticed there is a mistake in my last post. I meant
"increase" instead of "reduce". Forgive me my poor English.<br>
<br>
Thanks again,<br>
Alexander<br>
<br>
07.06.2011 12:50, Garcia Del Rio, Diego (Diego) пишет:
<blockquote
cite="mid:547DC5F206DF574F9BB2B0A21DFE778A89CE3D80@FRMRSSXCHMBSB2.dc-m.alcatel-lucent.com"
type="cite">
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Hi Alexander,<br>
<br>
We have a few customers running mrai=1 second and it works
well enough. On a RR node though, keeping mrai=1 after a
bootup can slow down convergence a bit as it reduces the
chance to pack updates from peers. <br>
<br>
A recommendation in that case would be to use the
"boot-good-exec" and cron jobs to set mrai=30 just after
bootup and keep it at that value for 10 to 15 minutes (or
however long takes you RR to converge and a safety margin) and
only then set mrai=1 for fast update propagation. <br>
<br>
Keep in mind that route-removals are not constrained by mrai.
<br>
<br>
Diego Garcia del Rio
<br>
Product Management, IPD
<br>
Mountain View,CA
<br>
+1 (415) 439-9420
<br>
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<br>
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<b>From</b>: <a class="moz-txt-link-abbreviated" href="mailto:alcatel-nsp-bounces@puck.nether.net">alcatel-nsp-bounces@puck.nether.net</a>
<a class="moz-txt-link-rfc2396E" href="mailto:alcatel-nsp-bounces@puck.nether.net"><alcatel-nsp-bounces@puck.nether.net></a>
<br>
<b>Cc</b>: <a class="moz-txt-link-abbreviated" href="mailto:alcatel-nsp@puck.nether.net">alcatel-nsp@puck.nether.net</a>
<a class="moz-txt-link-rfc2396E" href="mailto:alcatel-nsp@puck.nether.net"><alcatel-nsp@puck.nether.net></a>
<br>
<b>Sent</b>: Tue Jun 07 08:18:16 2011<br>
<b>Subject</b>: Re: [alcatel-nsp] bgp min-route-advertisement
<br>
</font><br>
</div>
<br>
Hello,<br>
<br>
This is true, especially for address-family with full view.<br>
But also true is that in bgp/mpls vpns often there are no many
peering points and no full view of internet routes. 30sec
restriction significantly reduces convergence time in this
networks, especially in redundant topologies.<br>
So it is common practice, from "another vendor" for example, to
set default time for eBGP sessions in GRT equal to 30 secs, but to
set it equal to zero secs for iBGP and for PE-CE sessions in VPNs.<br>
<br>
Ok. My main question is- may be somebody know something important
about ALU routers that can have a serious negative impact when
setting advertisement equal to 1 sec?<br>
<br>
Thanks,<br>
Alexander<br>
<br>
07.06.2011 01:03, Thedin Guruge пишет:
<blockquote
cite="mid:BANLkTinjeOmYhwruGTnpstZjPL+ex0TkUQ@mail.gmail.com"
type="cite">Hi Alexander,
<div><br>
</div>
<div>As depicted by the config itself, it determines the
interval at which routes are advertised to peers, having it at
1 sec will set BGP to be more chatty..which isn't a common
desire.</div>
<div><br>
</div>
<div>Regards,</div>
<div><br>
</div>
<div>Thedin<br>
<br>
<div class="gmail_quote">On Mon, Jun 6, 2011 at 6:26 PM,
Alexander Saveliev <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:saveliev@mostelekom.net">saveliev@mostelekom.net</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">Hello,<br>
<br>
Does anybody know what's the point for choosing
min-route-advertisement=30sec in all BGP processes by
default? Why not 1sec for example?<br>
<br>
Thanks,<br>
Alexander<br>
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