CCIE

What is Routing Protocol IS-IS ? In this lesson, we will focus on one of the Routing protocols. We will learn What is ISIS Protocol? Why We use this protocol. 
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In this lesson, we will configure VPLS on Nokia Service Routers. Before any Service configuration, our IGP configuration must be done and the network must be converged. We had talked 
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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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