Cisco CCNA Troubleshooting

Cisco CCNA Troubleshooting – Physical & Data Link Layer, by Chris Bryant, covers important aspects of troubleshooting Cisco networks at the physical (layer 1) and data link (layer 2) layers of the OSI model.

Part 1 covers network cabling, troubleshooting tools, attenuation and cross-talk. Part 2 covers switch troubleshooting, layer 1 show commands, network monitors, protocol analyzers, arp and proxy arp.

Physical & Data Link Layer - Part 1

More information coming soon…

Physical & Data Link Layer - Part 2

More information coming soon…

Cisco CCNA Troubleshooting – Frame Relay, by Chris Bryant, covers important aspects of troubleshooting Frame Relay on Cisco networks. Topics covered include: