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Link Aggregation on Cisco IOS XR

Posted by gokhankosem on 09 Sep 16 - 0 Comments

Link Aggregation on Cisco IOS XR Link aggregation, LAG, Bundle, EtherChannel, what ever you say, they have the same logic in real. So, the configuration logic of Link Aggregation (LAG) is not different than Ether Channel logic on Cisco devices that run Cisco XR software. Here, again the bundle is created and the ports are […]

BGP Path Attributes – MED

Posted by gokhankosem on 24 Aug 16 - 0 Comments
bgp-path-attribute-med-ipcisco-

BGP Path Attributes – MED MED (Multi Exit Discriminator) attribute is the BGP Path attribute which provides information to the external neighbours, about how to come their Autonomous System. This is opposite of Local Preference. Local Preference says to the internal neighbours, “How to Exit AS”. MED says to the external neighbours, “How to Enter […]

BGP Path Attributes – Origin

Posted by gokhankosem on 24 Aug 16 - 1 Comment
bgp path attribute, origin

BGP Path Attributes – Origin The Origin attribute informs the Autonomous Systems (AS) about the originator of that route. It is a Well-Known Mandatory BGP Path attribute. It is supported in all BGP implementations and in all update packets it must exist. There are three different Origin type. These are : • i (IGP) • […]

BGP Path Attributes – AS Path

Posted by gokhankosem on 24 Aug 16 - 0 Comments
bgp path attribute, as path, as path prepending

BGP Path Attributes – AS Path AS Path is another Well-Known and Mandatory BGP Path attribute. Here, as we have discusssed before, Well-Known means “it is supported by every BGP implementation” and Mandatory means “it must be included in every route entry”. In AS Path mechanism, whenever a route pass a AS (Autonomous System), it […]

BGP Path Attributes – Local Preference

Posted by gokhankosem on 24 Aug 16 - 0 Comments
bgp path attribute, local preference

BGP Path Attributes – Local Preference In BGP Path selection algorithm, if your device is a different vendor product (not Cisco), the first BGP Path Attribute that is taken into account during path selection is Local Preference attribute. Local Preference is not a vendor specific BGP Path Attribute like all the BGP path attributes except […]


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