Tshoot: High CPU utilization while flexlink and multicast were operating.

Equipments and tools 1. Windows 2003 server with Orion NPM installed. For traffic and network health monitoring. 2. Windows XP with VLC media player version 0.8.6c, this is the video server. 3. Windows 7 with VLC media player version 0.8.6c, this is the video client. 4. One WS-3560-24TS-E, Catalyst switch that has flexlink feature. 5. … Continue reading Tshoot: High CPU utilization while flexlink and multicast were operating. →

Flexlink: Proof of concept

Introduction Proof of concept for VRF, PBR and Flexlink will be based on this diagram. Cisco 871 has reached its EoL on June 2010, this router is designed for branch office with a built in 4 port switch. The built-in switch itself has only one layer 2 redundancy mechanism - STP 802.1D, there's no flexlink … Continue reading Flexlink: Proof of concept →

Flexlink

What is flexlink? Flexlinks are a pair of layer 2 interface either switch ports or port channels, where one link is configured as active while the other is standby. When the active link fails, the standby link will take over and forward the data, interfaces running flexlink will not run STP. configure terminal interface gi0/1 … Continue reading Flexlink →