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H-VPLS (Hierarchical VPLS) is the more scalable version of VPLS. Basically, H-VPLS has some architectural difference than flat VPLS. You can also view the lesson, that we have talked about 
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BGP 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 
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BGP Origin Attribute informs the Autonomous Systems (AS) about the originator of that route. It is a Well-Known Mandatory BGP Path attribute like AS Path Attribute and Next Hop Attribute. 
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BGP AS Path Attribute AS Path Attribute 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” 
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What is BGP Local Preference Attribute? In BGP Path selection algorithm, if your device is a different vendor product (not Cisco), the first BGP Path Attribute that is taken into 
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