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		<title>Overlapping vrf</title>
		<link>http://chorzkie.wordpress.com/2008/09/05/overlapping-vrf/</link>
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		<pubDate>Fri, 05 Sep 2008 16:47:05 +0000</pubDate>
		<dc:creator>chorzkie</dc:creator>
				<category><![CDATA[Oprekan]]></category>
		<category><![CDATA[Overlapping vrf]]></category>

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		<description><![CDATA[Saya nulis ini cuman supaya gak lupa tentang overlapping vrf di mpls l3 vpn, cisco platform. Cupu doang sih, nothing special. Misalkan, kita punya 4 vrf yang tersebar di 2 PE di mpls bb, dengan interaksi antar vrf sebagai berikut: vrf inetgw, kita kasih route-distinguisher (rd) dan route-target (rt) 65000:103 vrf operation, rd &#38; rt [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=chorzkie.wordpress.com&amp;blog=4742233&amp;post=5&amp;subd=chorzkie&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Saya nulis ini cuman supaya gak lupa tentang overlapping vrf di mpls l3 vpn, cisco platform. Cupu doang sih, nothing special.</p>
<p><a href="http://chorzkie.files.wordpress.com/2008/09/overlapping-vrf1.jpg"><img class="aligncenter size-full wp-image-7" title="overlapping-vrf1" src="http://chorzkie.files.wordpress.com/2008/09/overlapping-vrf1.jpg?w=450&#038;h=286" alt="" width="450" height="286" /></a></p>
<p>Misalkan, kita punya 4 vrf yang tersebar di 2 PE di mpls bb, dengan interaksi antar vrf sebagai berikut:</p>
<ul>
<li>vrf inetgw, kita kasih route-distinguisher (rd) dan route-target (rt)<strong> 65000:103</strong></li>
<li>vrf operation, <strong>rd &amp; rt 65000:101</strong></li>
<li>vrf management, <strong>rd &amp; rt 65000:102</strong></li>
<li>dan.. vrf supervision, <strong>rd &amp; rt 65000:104</strong></li>
<li>vrf inetgw berfungsi sebagai gateway internet saja (ya iyalahh,, sesuai namanya), bisa diakses oleh vrf supervision dan management.</li>
<li>vrf operation hanya punya akses dengan vrf supervision.</li>
<li>vrf supervision dan management terpisah, tidak bisa aling akses</li>
</ul>
<p>Kalo digambarin pake diagram, mungkin kayak gini kali ya..</p>
<p><a href="http://chorzkie.files.wordpress.com/2008/09/vrf-akses1.jpg"><img class="aligncenter size-full wp-image-9" title="vrf-akses1" src="http://chorzkie.files.wordpress.com/2008/09/vrf-akses1.jpg?w=423&#038;h=346" alt="" width="423" height="346" /></a></p>
<p>Irisan antar elips berarti saling akses antar vrf.</p>
<p>Maka, konfigurasi setiap vrf adalah:</p>
<p><em><strong>1. Vrf inetgw bisa diakses oleh vrf supervision dan management.</strong></em></p>
<p>ip vrf inetgw<br />
rd 65000:103<br />
route-target export 65000:103<br />
route-target import 65000:103</p>
<p>supaya bisa diakses oleh vrf supervision, import route target milik vrf supervision<br />
<strong> route-target import 65000:104</strong></p>
<p>supaya bisa diakses oleh vrf management, import route target milik vrf management<br />
<strong>route-target import 65000:102</strong></p>
<p>Hasilnya:</p>
<p>ip vrf inetgw<br />
rd 65000:103<br />
route-target export 65000:103<br />
route-target import 65000:103<br />
<strong> route-target import 65000:104<br />
route-target import 65000:102</strong></p>
<p>Di sisi vrf supervision dan management, musti di-import juga route target milik vrf inetgw, hasilnya:</p>
<p>ip vrf management<br />
rd 65000:102<br />
route-target export 65000:102<br />
route-target import 65000:102<br />
<strong> route-target import 65000:103</strong></p>
<p>ip vrf supervision<br />
rd 65000:104<br />
route-target export 65000:104<br />
route-target import 65000:104<br />
<strong> route-target import 65000:103</strong></p>
<p><em><strong>2. Aturan berikutnya, vrf operation hanya punya akses dengan vrf supervision.</strong></em></p>
<p>Maka dari vrf operation kita import hanya route target milik vrf supervision. Hasilnya:<em><strong><br />
</strong></em></p>
<p>ip vrf operation<br />
rd 65000:101<br />
route-target export 65000:101<br />
route-target import 65000:101<br />
<strong> route-target import 65000:104</strong></p>
<p>Dari sisi vrf supervision, juga diimport route traget milik vrf operation:</p>
<p>ip vrf supervision<br />
rd 65000:104<br />
route-target export 65000:104<br />
route-target import 65000:104<br />
route-target import 65000:103<br />
<strong> route-target import 65000:101</strong></p>
<p><em><strong>3. vrf supervision dan management terpisah, tidak bisa aling akses</strong></em></p>
<p>Ya sudah, kalo yang ini sih, pastikan saja vrf supervision dan vrf management tidak saling mengimport route-target. Hehe</p>
<p><em><strong>Maka , konfigurasi akhir masing-masing vrf adalah sebagai berikut:</strong></em></p>
<p>ip vrf operation<br />
rd 65000:101<br />
route-target export 65000:101<br />
route-target import 65000:101<br />
route-target import 65000:104</p>
<p>ip vrf management<br />
rd 65000:102<br />
route-target export 65000:102<br />
route-target import 65000:102<br />
route-target import 65000:103</p>
<p>ip vrf inetgw<br />
rd 65000:103<br />
route-target export 65000:103<br />
route-target import 65000:103<br />
route-target import 65000:104<br />
route-target import 65000:102</p>
<p>ip vrf supervision<br />
rd 65000:104<br />
route-target export 65000:104<br />
route-target import 65000:104<br />
route-target import 65000:103<br />
route-target import 65000:101</p>
<p>Yak, begitulah kawan, overlapping vrf yang saya maksud.  Quite simple isn&#8217;t it?</p>
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