OSPF and BGP: Differences and Interactions When it comes to routing protocols, two of the most popular are OSPF (Open Shortest Path First) and BGP (Border Gateway Protocol). Both OSPF and BGP are used to determine the best path for data to travel through a network,...
When it comes to IPv6, there are several categories of IPv6 addresses, each with its own use case. For example, IPv6 link-Local addresses are intended for addressing on a single link for purposes such as automatic address configuration or neighbor discovery. For this...
BGP blackhole filtering is a routing technique used to drop unwanted traffic. Black holes are placed in the parts of a network where unwanted traffic should be dropped. For example, a customer can ask a provider to install black hole on its provider edge (PE) routers...
BGP community attribute is a transitive optional attribute that we use for tagging (marking) a set of prefixes sharing a common property. Every BGP update carries network information (prefix) along with well-known attributes such as AS Path, Origin information, and...
The Internet consists of Internet Service Providers (ISPs) of all shapes and sizes. ISPs have two options when it comes to connecting to the Internet. They can either purchase IP transit from an upstream provider, or form a peering relationship with other ISPs. To...
