Applied Infrastructure

Browse by Tags

• CiscoLive2010
• failure domains
• HSRP
• interface down
• reachability
• redundancy
• reports
• resilient networks
• SLA
• spanning tree

• HSRP Preempt Delay

  I learned something new at CiscoLive: hsrp preempt delay and why it should be used. In the Resilient Campus Design session, the presenter discussed factors and configurations that make a network more resilient. HSRP is often used in campus networks as... Posted Jul 23 2010, 09:24 AM by tslattery with | with no comments Filed under: high availability, Featured, CiscoLive2010, HSRP, resilient networks

• Tracking Key Interface State

  The Baltimore-Washington area has been hit with several significant snow storms this winter and those storms have impacted the operations of a large metropolitan area network. Problems range from power outages at some sites to link problems between sites... Posted Mar 01 2010, 01:58 PM by tslattery with | with no comments Filed under: high availability, Featured, redundancy, interface down

• High Availability Networking (>5-nines)

  One of the best sessions I attended at CiscoLive this year was titled "BRKRST-3365, Unified HA Network Design: The Evolution of the Next Generation Network" by John Cavanaugh, Chris Cornwall, and a whole team of contributors. They talked about... Posted Aug 17 2009, 01:28 PM by tslattery with | with 1 comment(s) Filed under: high availability, Featured, failure domains, redundancy, spanning tree

• Reachability SLA and SNMP Data Collection

  Some network management systems track reachability by pinging network devices. In fact, at a Networkers a few years ago, the Cisco IT team talked about using 5 second pings to measure network availability (what I prefer to call reachability) in the Cisco... Posted Jun 13 2009, 02:09 PM by tslattery with | with 1 comment(s) Filed under: reports, high availability, Featured, SLA, reachability