Cisco vPC in VXLAN/EVPN Network – Part 3 – Verifying Connectivity
The following topology is used: We want to verify connectivity and traffic flow towards: Let’s start with the gateway. The […]
EVPN, VXLAN
EVPN, VXLAN
Cisco vPC in VXLAN/EVPN Network – Part 2 – Configuring vPC
When building leaf and spine networks, leafs connect to spines, but leafs don’t connect to leafs, and spines don’t connect
EVPN, VXLAN
Cisco vPC in VXLAN/EVPN Network – Part 1 – Anycast VTEP
Many vendors offer MLAG features, that is, the ability to form a PortChannel (some vendors call it trunk or bond)
CCNA
CCNA 200-301 Updated To Version 1.1
Cisco is updating the Cisco Certified Network Associate (CCNA) exam to version 1.1. In the past, Cisco only did major
Ethernet
1000BASE-T Part 4 – Link Down Detection
In the previous three parts, we learned about all the interesting things that go on in the PHY with scrambling,
VXLAN
Troubleshooting vPC in My Virtual Lab
I’m preparing a blog post on setting up vPC in a VXLAN/EVPN environment. While doing so, I ran into some
Ethernet
1000BASE-T Part 3 – Autonegotiation
In this post, we’ll take a closer look at auto negotiation. Auto negotiation has the following characteristics: The Auto Negotiation
Ethernet
1000BASE-T Part 2 – Deepdive
In 1000BASE-T Part 1, we reviewed the layers and what their purpose is. Now we’re going to go much deeper
Ethernet
1000BASE-T Part 1 – Introduction
How does Ethernet detect that a link goes down? This, what I thought was a simple question, I asked myself
EVPN, VLAN
How Anycast VTEP Broke My Lab And What I Learned
I’m preparing a massive blog post on vPC in the context of VXLAN/EVPN and while doing so I accidentally broke