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	<title>Networkers-online.com &#187; Routing</title>
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	<link>http://www.networkers-online.com/blog</link>
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		<title>BGP Attributes: Local Preference Attribute</title>
		<link>http://www.networkers-online.com/blog/2010/12/bgp-attributes-local-prefernce-attribute/</link>
		<comments>http://www.networkers-online.com/blog/2010/12/bgp-attributes-local-prefernce-attribute/#comments</comments>
		<pubDate>Sat, 18 Dec 2010 15:52:08 +0000</pubDate>
		<dc:creator>Wael Osama</dc:creator>
				<category><![CDATA[BGP]]></category>
		<category><![CDATA[BGP Attributes]]></category>
		<category><![CDATA[Local Preference]]></category>

		<guid isPermaLink="false">http://www.networkers-online.com/blog/?p=744</guid>
		<description><![CDATA[The local preference attribute is a well-know discretionary attribute. This means local preference must be recognized by all BGP implementations, but will not exist in all BGP update messages; specifically it will not exist in E-BGP update messages. BGP local preference attribute is one of the most used attributes in BGP real world to influence [...]


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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>BGP Attributes: Atomic Aggregate Atribute</title>
		<link>http://www.networkers-online.com/blog/2010/12/bgp-attributes-atomic-aggergate-atribute/</link>
		<comments>http://www.networkers-online.com/blog/2010/12/bgp-attributes-atomic-aggergate-atribute/#comments</comments>
		<pubDate>Tue, 14 Dec 2010 21:13:29 +0000</pubDate>
		<dc:creator>Wael Osama</dc:creator>
				<category><![CDATA[BGP]]></category>

		<guid isPermaLink="false">http://www.networkers-online.com/blog/?p=699</guid>
		<description><![CDATA[Atomic aggregate is a Well-known Discretionary attribute; it must be recognized by all BGP implementations and does not have to exist in all BGP updates. The purpose of the attribute is to alert BGP speakers along the path that some information have been lost due to the route aggregation process and that the aggregate path [...]


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		<slash:comments>3</slash:comments>
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		<item>
		<title>BGP Attribute Types and Flags</title>
		<link>http://www.networkers-online.com/blog/2010/12/bgp-attribute-types-and-flags/</link>
		<comments>http://www.networkers-online.com/blog/2010/12/bgp-attribute-types-and-flags/#comments</comments>
		<pubDate>Wed, 08 Dec 2010 13:10:25 +0000</pubDate>
		<dc:creator>Wael Osama</dc:creator>
				<category><![CDATA[BGP]]></category>

		<guid isPermaLink="false">http://www.networkers-online.com/blog/?p=687</guid>
		<description><![CDATA[BGP attributes is an interesting subject of study.  BGP is a very flexible and extensible protocol and I like that, let&#8217;s see how flexible is that protocol when it comes to attributes handling. We all know that BGP has four types of attributes as listed: Well-known mandatory. Well-known discretionary. Optional transitive. Optional non-transitive. I am [...]


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		<wfw:commentRss>http://www.networkers-online.com/blog/2010/12/bgp-attribute-types-and-flags/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>How to: use IS-IS overload bit</title>
		<link>http://www.networkers-online.com/blog/2010/08/how-to-use-is-is-overload-bit/</link>
		<comments>http://www.networkers-online.com/blog/2010/08/how-to-use-is-is-overload-bit/#comments</comments>
		<pubDate>Mon, 30 Aug 2010 13:37:12 +0000</pubDate>
		<dc:creator>Wael Osama</dc:creator>
				<category><![CDATA[CISCO HOW-TO]]></category>
		<category><![CDATA[ISIS]]></category>
		<category><![CDATA[Network Design]]></category>

		<guid isPermaLink="false">http://www.networkers-online.com/blog/?p=560</guid>
		<description><![CDATA[Overload bit is special bit in the IS-IS LSP used to inform the network that the advertising router is not yet ready to forward transit traffic.  The overload bit was first intended for signaling overload or resource shortage on specific router for the rest of the network. You can use the command set-overload-bit intentionally on [...]


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		<slash:comments>0</slash:comments>
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		<title>The endless story of OSPF vs IS-IS &#8211; Part 4 &#8220;The Inside Out&#8221;</title>
		<link>http://www.networkers-online.com/blog/2010/05/the-endless-story-of-ospf-vs-is-is-part-4-the-inside-out/</link>
		<comments>http://www.networkers-online.com/blog/2010/05/the-endless-story-of-ospf-vs-is-is-part-4-the-inside-out/#comments</comments>
		<pubDate>Sat, 22 May 2010 19:22:47 +0000</pubDate>
		<dc:creator>mmahmoud</dc:creator>
				<category><![CDATA[Bury the hatchet]]></category>
		<category><![CDATA[IGP]]></category>
		<category><![CDATA[ISIS]]></category>
		<category><![CDATA[Network Design]]></category>
		<category><![CDATA[OSPF]]></category>
		<category><![CDATA[Routing]]></category>

		<guid isPermaLink="false">http://www.networkers-online.com/blog/?p=448</guid>
		<description><![CDATA[In this post we&#8217;ll be covering a couple of topics from the Inside Out of the link-state protocols that have always been ambiguous and full of details, we&#8217;ll try to make them as crystal clear as we can. MTU: Both link-state routing protocols consider MTU in order to prevent any related problems, mainly loss of [...]


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		<wfw:commentRss>http://www.networkers-online.com/blog/2010/05/the-endless-story-of-ospf-vs-is-is-part-4-the-inside-out/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>The endless story of OSPF vs IS-IS &#8211; Part 3 &#8220;Packets and Database&#8221;</title>
		<link>http://www.networkers-online.com/blog/2010/05/the-endless-story-of-ospf-vs-is-is-part-3-packets-and-database/</link>
		<comments>http://www.networkers-online.com/blog/2010/05/the-endless-story-of-ospf-vs-is-is-part-3-packets-and-database/#comments</comments>
		<pubDate>Sun, 16 May 2010 20:57:30 +0000</pubDate>
		<dc:creator>mmahmoud</dc:creator>
				<category><![CDATA[Bury the hatchet]]></category>
		<category><![CDATA[IGP]]></category>
		<category><![CDATA[ISIS]]></category>
		<category><![CDATA[Network Design]]></category>
		<category><![CDATA[OSPF]]></category>
		<category><![CDATA[Routing]]></category>

		<guid isPermaLink="false">http://www.networkers-online.com/blog/?p=435</guid>
		<description><![CDATA[In this post we are going to cover the protocol packets and database structure for both routing protocols. To start let&#8217;s first highlight a couple of facts. OSPF runs on top of IP, that is it uses IP packets to exchange its messages (and thus it is vulnerable to spoofing and DoS attacks, and accordingly [...]


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		<wfw:commentRss>http://www.networkers-online.com/blog/2010/05/the-endless-story-of-ospf-vs-is-is-part-3-packets-and-database/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>The endless story of OSPF vs IS-IS &#8211; Part 2 &#8220;The history&#8221;</title>
		<link>http://www.networkers-online.com/blog/2010/04/the-endless-story-of-ospf-vs-is-is-part-2-the-history/</link>
		<comments>http://www.networkers-online.com/blog/2010/04/the-endless-story-of-ospf-vs-is-is-part-2-the-history/#comments</comments>
		<pubDate>Mon, 26 Apr 2010 20:30:43 +0000</pubDate>
		<dc:creator>mmahmoud</dc:creator>
				<category><![CDATA[Bury the hatchet]]></category>
		<category><![CDATA[IGP]]></category>
		<category><![CDATA[ISIS]]></category>
		<category><![CDATA[Network Design]]></category>
		<category><![CDATA[OSPF]]></category>
		<category><![CDATA[Routing]]></category>

		<guid isPermaLink="false">http://www.networkers-online.com/blog/?p=427</guid>
		<description><![CDATA[In our previous post we started consolidating the endless story of OSPF vs IS-IS, in this post we will cover the historical part of the story, it might not be interesting for some people, but I do believe that the history is what makes the future, so please bare with me through this post. The [...]


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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>IS-IS DIS in Practice</title>
		<link>http://www.networkers-online.com/blog/2010/04/is-is-dis-in-practice/</link>
		<comments>http://www.networkers-online.com/blog/2010/04/is-is-dis-in-practice/#comments</comments>
		<pubDate>Mon, 12 Apr 2010 11:40:09 +0000</pubDate>
		<dc:creator>Mounir Mohamed</dc:creator>
				<category><![CDATA[ISIS]]></category>
		<category><![CDATA[IS-IS DIS]]></category>
		<category><![CDATA[IS-IS DIS LAN-ID]]></category>
		<category><![CDATA[ISIS DIS]]></category>

		<guid isPermaLink="false">http://www.networkers-online.com/blog/?p=370</guid>
		<description><![CDATA[In the previous post IS-IS Neighbor Discovery we have discussed how IS-IS automatically discovers neighbors, in this post we will discuss the DIS role in broadcast networks. After the adjacency state reached the UP state the DIS election process take place, the router with the highest priority value (0-127 specified in the Priority field of [...]


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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>IS-IS Neighbor Discovery</title>
		<link>http://www.networkers-online.com/blog/2010/04/is-is-neighbor-discovery/</link>
		<comments>http://www.networkers-online.com/blog/2010/04/is-is-neighbor-discovery/#comments</comments>
		<pubDate>Mon, 12 Apr 2010 11:16:51 +0000</pubDate>
		<dc:creator>Mounir Mohamed</dc:creator>
				<category><![CDATA[ISIS]]></category>
		<category><![CDATA[IIH]]></category>
		<category><![CDATA[ISIS hello]]></category>

		<guid isPermaLink="false">http://www.networkers-online.com/blog/?p=373</guid>
		<description><![CDATA[Like other routing and signaling protocols IS-IS has built-in automatic neighbor discovery mechanism which is known by IIHs (IS-IS Hello PDUs), because IS-IS is not IP based protocol the IIH PDUs and all other IS-IS PDUs are directly encapsulated on the data-link layer. IS-IS has two hierarchical levels (L1 and L2) and two network types [...]


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		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>The Role of BGP in MPLS networks</title>
		<link>http://www.networkers-online.com/blog/2010/04/the-role-of-bgp-in-mpls-networks/</link>
		<comments>http://www.networkers-online.com/blog/2010/04/the-role-of-bgp-in-mpls-networks/#comments</comments>
		<pubDate>Mon, 05 Apr 2010 15:05:10 +0000</pubDate>
		<dc:creator>Wael Osama</dc:creator>
				<category><![CDATA[BGP]]></category>
		<category><![CDATA[MPLS]]></category>

		<guid isPermaLink="false">http://www.networkers-online.com/blog/?p=363</guid>
		<description><![CDATA[In almost every book you will read about MPLS, the author will state that one of the MPLS benefits is having a BGP free core network; sometimes they explain it sometimes not. However, to really understand this statement I encourage you to imagine removing MPLS from your core network and see what adjustments you need [...]


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		<slash:comments>0</slash:comments>
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