IS-IS

Routing

Term Overview

Term IS-IS

Category Routing

Related Terms 4

Definition

Intermediate System to Intermediate System. A link-state routing protocol used by large ISPs and service providers, operating directly over Layer 2 rather than IP. Functionally similar to OSPF but preferred in large-scale SP networks.

Routing

Related Terms

OSPF BGP Routing Table Autonomous System (AS)

More in Routing

Autonomous System (AS) BGP Default Route Gateway Hop OSPF Router Routing Table