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Author Archives: Keyboard Banger

Conversation with a legacy CCIE

One of my collegues is an old CCIE, from the days of Cisco WAN certifications. He worked with Telefonica, a big Spanish Telco company. He managed to take a bunch of spare routers to build a lab on his office ... Read More »

New CCNP Curriculum

Cisco released the new version of its respected CCNP. Hopefully, I did BSCI. Now I have no other alternative but to kill BCMSN. Then, I can play with some Voice. Meanwhile, TSHOOT gets more and more mature. Read More »

Almost 28 Days Later

The CEO rejected my premature resignation. He had a very strong personality and self-confidence, I admit it. In my one-and-a-half year of working at SATEC, I only discussed with him twice.In a second attempt to quit my job early, he ... Read More »

Almost Finished BCMSN first review

I have read and practiced almost all subjects. Now I need to review the ones I forgot. Yeah I am conscious that I’ve forgotten many concepts and configuration commands. So I need a second and maybe a third and fourth ... Read More »

MSTP Notes


I configured VLANs, assigned ports to them, configured VTP domain to be the same on both switches, configured trunks, configured MST region with its name, revision number and vlan-to-instance mapping… but I couldn’t see changes when I issue spanning-tree mst ... Read More »

STP Notes


This is the topology I’m using for these notes. Electing a root bridge for a vlan: in my lab, both switches had the same Bridge priority, which was the default 32768 + the Vlan ID number. So the tie was ... Read More »

Etherchannel Notes Pt2


a port channel can be of two types: L2 port channel or L3 port channel. L2 port channel: formed of L2 interfaces. L3 port channel: formed of L3 interfaces. We get a L3 interface by issuing no switchport interface command. ... Read More »

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