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Why Spanning Tree Protocol is Used

This short article describes why the Spanning-Tree Protocol is used. It’s easy to connect a bunch of computers to a switch, and connect the switch to its gateway, and you get a full simple network. But then you add another ... Read More »

Spanning Tree Protocol

Please read here for a brief introduction on Spanning Tree Protocol  STP BID and Root Bridge Each BPDU contains the Bridge ID (or BID for short). The Bridge ID is composed of: the bridge priority the bridge MAC address The ... Read More »

CCNP Routing And Switching Exam Fees


Here are the official Pearson Vue Cisco CCNP Routing and Switching exam fees: Implementing Cisco IP Routing (ROUTE) 300-101: exam costs about 200$ Implementing Cisco IP Switched Networks (SWITCH) 300-115: exam costs about 200$ Troubleshooting and Maintaining Cisco IP Networks ... Read More »

CCNP Collaboration Syllabus


Cisco announced the new CCNP certification track: CCNP Collaboration, which replaces the famous CCNP Voice track. The CCNP Collaboration track is composed of four exams, as of May 6th, 2015: CIPTV1 CIPTV2 CAPPS CTCOLLAB Read More »