BGP Attributes and BGP Path Selection

In this blog I will briefly review the BGP path selection algorithm used when deciding which BGP routes to install in the routing table. Though before doing so, I ought to review first the BGP attributes. BGP ATTRIBUTES TYPES Firstly, we classify BGP attributes based on whether or not they should be supported within a specific vendor BGP implementation. Well-Known BGP attributes are supported in all BGP implementation regardless the vendor. Depending on whether or not these are sent with BGP Updates, we further classify them into: Mandatory attributes – these must be present in every single update where NLRIs…

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Cisco ISE Deployment Notes

As with any deployment, having a good design in place is the foundation of achieving a successful deployment. In this blog I will be putting together a few notes to keep in mind when designing and deploying Cisco ISE appliance. COMMUNICATION Whilst communication is not strictly part of the actual design, it is nonetheless an important area to address. Deploying access controls in any network is a risky business indeed. Why? Well … access control here should be a good clue! Furthermore, prior to even starting the design, you must fully understand what the requirements are and communicate the limitation within…

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