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Visual Guide to LAG Thinking for Server Admins

When working with Server and VMware people, there is a fair amount of misunderstanding of what is happening in the network. The best technical explanation for what is happening in LAG is, of course described at Ivan Pepelnjak’s IPSpace Blog – vSphere Does Not Need LAG Bandaids – The Network Does while Chris Wahl talks about the server side for VMware but I wanted to add something to the debate.

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◎ Tech Notes: Arista AgilePorts – Building 40Gigabit DCI with 10GbE ports

Stumbled over “AgilePorts” feature in Arista products this week: Arista’s AgilePorts technology enables the combination of four 10GbE SFP+ interfaces into a single 40GbE interface leveraging the parallel lane technology present in the 40GBASE-CR4 and 40GBASE-SR4standards. With AgilePorts, each 10GbE interface emulates one of the four parallel lanes, which are then driven by a 40GbE […]

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Network Dictionary – UADP

Cisco has a built a single technology strategy for fixed and wireless networking and called it Unified Access Data Plane (UADP).

Tech Notes: What is Shortest Path Bridging IEEE 802.1aq – Brief

Summary of the key elements of the Shortest Path Bridging Protocol IEEE 802.1aq.

Basics: Three Types of Cisco UCS Network Adapters

In the Cisco UCS servers, there are three classes or categories of Network Adapters for B-series and C-Server servers. I write this down because it’s pretty hard to find this summary anywhere is Cisco’s documentation and I keep having to tell people the difference. Now I can point them at this blog post.

Tech Note: Command Line for Alternate PAC file for Chrome

Sometimes you need to use many different Proxy Auto Configuration files with a web browser, usually when testing or trying out new installation of the proxy servers.

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Tech Notes: Juniper QFabric – A Perspective on Scaling Up

Juniper QFabric is a new approach to Ethernet Switch Fabrics. When it was announced last year,it was noted that the underlying physical design is a completely different approach to building Switch Fabrics. Here I’m taking a loosely research based approach to understand how Juniper QFabric is different from all other approaches to the problem, and also a look at some of the challenges ahead.

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