Internet Registries

by | Apr 24, 2014 | Routing

      iana – Domain Names Management of the DNS Root, the .int and .arpa domains, and an IDN practices resource. iana – Number Resources Coordination the global pool of IPv4, IPv6 and AS numbers to Regional Internet Registries. iana –...

Trunking

by | Mar 23, 2014 | Switching

Trunking at Layer 2 basically comes in one of two flavors either dynamic or static. With dynamic trunking protocol or DTP developed by Cisco Systems switches can form Layer 2 trunks using either the industries standard IEEE 802.1Q or Cisco’s proprietary ISL...

Lancope Stealthwatch

by | Feb 5, 2014 | Netflow

I have been hearing and reading about vendor by the name of Lancope. I had really never heard of them before, but I noticed that they often participate in Cisco related events such as Cisco Live. After some investigations I discovered that they offer a wide range of...

HSRP

by | Nov 15, 2013 | High Availability, Routing

Hot Standby Routing Protocol or HSRP is a Cisco’s proprietary Layer 2 method of providing high network availability by providing redundancy for IP hosts on an IEEE 802 LAN configured with a default gateway address. HSRP routes IP traffic without relying on the...

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...