Categories R&S

L3 technologies – EIGRP – Initialization

Here is my next CCIE series about EIGRP. In this first post, I will have a look on the basic EIGRP configuration.   This is the link to the Cisco configuration guide for EIGRP: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_eigrp/configuration/15-mt/ire-15-mt-book/ire-enhanced-igrp.html   L3 technologies – EIGRP – Initialization –Network diagram   L3 technologies – EIGRP – Initialization – Basic configuration: Let’s […]

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Categories R&S

L2 technologies – MST multiple regions

Time to tackle some real MST challenge, multiple spanning-tree with multiple regions. I have created a new network diagram in order to test this further.   L2 technologies – MST multiple regions – Physical network diagram     L2 technologies – MST multiple regions – Theory: Here is some theory first as MST with multiple […]

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Categories R&S

L2 technologies – Multiple Spanning-Tree Protocol – MST

I have never seen this in production but this is still part of the CCIE. Let’s try to get a good view about multiple spanning-tree protocol.   L2 technologies – Multiple Spanning-Tree Protocol  – Network diagram   L2 technologies – Multiple Spanning-Tree Protocol  – Configuration: Following our network diagram, we will create 2 MST instances […]

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Categories R&S

L2 technologies – Spanning-Tree Protocol

Here is one good topic. I’m going to have a look only at rapid-PVST+. The standard spanning-tree isn’t really used any more in Cisco networks.   L2 technologies – Spanning-Tree Protocol – Physical network diagram L2 technologies – Spanning-Tree Protocol – configuration: Let’s first make sure that rapid-PVST+ is enable on all switches. SW10(config)#spanning-tree mode […]

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Categories R&S

L2 Technologies – Etherchannel

Today’s post will be about Etherchannel. That’s a quite simple topic.   We will keep the same topology. We have an etherchannel between SW10 and SW11. Let’s play around with it.   L2 Technologies – Etherchannel – Physical network diagram   L2 Technologies – Etherchannel  – configuration: L2 Technologies – Etherchannel  – Static Layer 2 […]

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Categories R&S

L2 technologies – VTP

In this post I will have a look at VTP. We will quickly go over VTP version 2 and focus more on the new features of VTP version 3.   VTP is used to automatically create, delete, manage vlans across your L2 network.   L2 technologies – VTP configuration – Physical network diagram   L2 […]

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Categories R&S

IPv6 – Routing – EIGRPv6

In this post I will have a look at EIGRPv6 for IPv6. We will finish the configuration of our network, the goal is to get full reachability between all the devices and hosts.   IPv6 – Routing – EIGRPv6 – Network diagram   IPv6 – Routing – EIGRPv6 – Configure EIGRPv6: We are now going to […]

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