OSPF and ISIS are two popular link-state routing protocols used in large-scale networks. Both protocols have similarities and differences in...

  Configuration In this lab we will configure IS-IS to carry IP routes. The IS-IS Lab Files include the initial and final configs for the t...

Adjacancies IS-IS uses Protocol Data Units, or PDU’s to communicate. This is like a packet in OSPF terminology. An IS-IS Hello PDU, or IIH, ...

NET Value A Network Entity Title, or ‘NET’, is an address that identifies the router. It consists of the router’s system ID, and the area a...

Inter-Area Routing To route a packet outside an area, a level 1 router sends the packet to the nearest level 2 capable router. The nearest r...