February 4, 2012

Errdisabled – Taking Ports OFFLINE Like the MCP from TRON

Errdisable is like the MCP from TRON

TweetEveryone remembers the original movie TRON where the character Flynn, played by Jeff Bridges, is sucked into the microscopic world of computer games.  In the movie the villain was the Master Control Program or MCP who would take programs OFFLINE if they misbehaved. Switches have their own MCP (of sorts) which takes network switch ports [...]

How to Configure HSRP on a Cisco Router

hsrp-basic

TweetHot Standby Routing Protocol or HSRP, is a Cisco proprietary protocol that allows two or more routers to work together to represent a single IP address for a particular network. HSRP, as well as Virtual Route Redundancy Protocol (VRRP) are considered high-availability network services that allow for almost immediate fail over to a secondary interface [...]

SSH Configuration – Securing Router Logins

configure ssh on a cisco router

TweetHow to Configure SSH (Secure Shell) For Remote Login on a Cisco Router By Don R. Crawley Prior to the introduction of SSH in the Cisco IOS, the only remote login protocol was Telnet. Although quite functional, Telnet is a non-secure protocol in which the entire session, including authentication, is in clear text and thus [...]

Important Safety Tips and Alternatives to Cisco’s FabricPath Switches

nexus

TweetEntering the Nexus If you have a data center or if you have any services running in a data center then at some point you may have considered Cisco’s Nexus switching platform.  Rightly so, Cisco’s Nexus platform promises and delivers huge flexibility and scalability gains within the data center. FabricPath To provide this next leap in data center  switching [...]

WiMax Basics – Using 4G Wireless in your Network

wimax

TweetAs wireless Internet services grow and expand, it seems that the industry is on a constant upward spiral. The potential for increased connectivity seems to be virtually limitless, and the spirit of competition and desire for profits will almost certainly motivate wireless providers to continue to strive for new heights for the foreseeable future. It [...]