I had fun times participating in a discussion focused on whether it makes sense to deploy OTV+LISP in a new data center deployment. Someone quickly pointed out the elephant in the room:
How many LISP VM mobility installs has anyone on this list been involved with or heard of being successfully deployed? How many VM mobility installs in general, where the VMs go at least 1,000 miles? I'm curious as to what the success rate for that stuff is.
I think we got one semi-qualifying response, so I made it even simpler ;)
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This post will describe different load balancer designs, the pros and cons of the designs and how they affect the forwarding of packets.
Load Sharing Vs Load Balancing
The terms load sharing and load balancing often get intermixed. An algorithm such as Cisco Express Forwarding (CEF) does load sharing of packets meaning that packets get sent on a link based on parameters such as source and destination MAC address or source and destination IP address or in some cases also the layer 4 ports in the IP packet. The CEF algorithm does not take into consideration the utilization of the link or how many flows have been assigned to each link. Load balancing on the other hand tries to utilize the links more evenly by tracking the bandwidth of the flows and assigning flows based on this information to the different links. The goal is to distribute the traffic across the links as evenly as possible. However load balancing is mostly used to distribute traffic to different servers to share the load among them.
Why Load Balancing?
What warrants the use of a load balancer? Think of a web site such as facebook.com. Imagine the number of users Continue reading
I loathe MRTG graphs. They were cool in 2000, but now they’re showing their age. We have much better visualisation tools available, and we don’t need to be so aggressive with aggregating old data. I’ve been working with InfluxDB + Grafana recently. Much cooler, much more flexible. Here’s a walk-through on setting up InfluxDB + Grafana, collecting network throughput data, and displaying it.
There’s three parts to this:
A show recorded in a bar. What could go right?
The post Field Engineering – A Garage Bar In Oregon appeared first on Packet Pushers.
A show recorded in a bar. What could go right ?
The post Field Engineering – A Garage bar in Oregon appeared first on Packet Pushers.
INE have trained over 3,800 CCIE’s more than all the other training companies combined. Once you have submitted your passing story to them, they will feature you on the CCIE Wall of Success. I have made it on there – Still can’t believe it!
The post INE CCIE Wall of Success appeared first on Roger Perkin - Networking Articles.
Look at that middle glass in the picture to the left. Do you view that middle glass as 1/2 empty or 1/2 full?
Departures at Dell; Docker's latest conquest; ONOS appoints a community manager