EIGRP Topology

by | Oct 17, 2013 | Routing

Enhanced Interior Gateway Routing Protocol or EIGRP is an Cisco proprietary interior gateway protocol suited for many different typologies and media. In a well designed network, EIGRP scales well and provides extremely quick convergence times with minimal network...

VRRP

by | Oct 15, 2013 | High Availability, Routing

Virtual Router Redundancy Protocol or VRRP is an open standard that eliminates a single point of failure inherent in the static default routed environment. VRRP specifies an election protocol that dynamically assigns responsibility for a virtual router. It’s a...

Layer 2 Multilink

by | Aug 15, 2013 | Routing

The only way to increase your current DS1 bandwidth without completely changing the Physical Layer to something such else such as Ethernet is to create a logical bundle with multiple DS1’s interfaces at Layer 2. If you already have the real estate in your Router...

OSPF Area 0

by | Jun 12, 2013 | Routing

The OSPF protocol is based on link-state technology, which is a departure from the Bellman-Ford vector based algorithms used in traditional Internet routing protocols such as RIP. OSPF has introduced new concepts such as authentication of routing updates, Variable...

GLBP

by | Apr 15, 2013 | High Availability, Routing

Gateway Load Balancing Protocol or GLBP differs from Cisco Hot Standby Redundancy Protocol or HSRP and IETF RFC 3768 Virtual Router Redundancy Protocol or VRRP in that it has the ability to load balance over multiple gateways. Like HSRP and VRRP an election occurs,...