Tag: DCI

This blog takes a look at a couple of ways to design Internet connectivity in the presence of Layer 3 data center interconnect (DCI). There’s an inherent design question in [...]

When you have two datacenters, you need the right plan for Datacenter Interconnection. Here’s a summary of the common options.

Data Center Interconnect (DCI), filtering HSRP between datacenters as part of optimal forwarding.

You may have noticed the NetCraftsmen News page article mentioning that Terry Slattery and I were invited and plan to attend Network Field Day #5. See also http://techfieldday.com/. I plan to listen to vendor presentations, learn,  and contribute what I can. I can also ask relevant questions for you (taking the…

I hope you are not thinking, "What's this about OTV and DCI needing defenses?" But if this question puzzles you, this blog is for you. The purpose of this blog is to make sure everyone (who reads this) is aware, Data Center Interconnect (DCI) techniques, and in particular OTV, do not…

What is the future of Disaster Recovery? That’s the obvious question after my blog on https://netcraftsmen.com/blogs/entry/improving-disaster-recovery.html. To recapitulate, that blog concluded that by doing datacenter basics well, we can help [...]

The topic of Data Center Interconnect at L2, and failover between data centers, seems to be a hot topic! I’d like to briefly note some of the great interaction that’s [...]

This blog provides a link to the CMUG presentation on Cisco Overlay Transport Virtualization (OTV) I gave in Columbia, MD on 1/19/11. I have also added some supplementary info you [...]

Two prior blogs discussed OTV, Cisco Overlay Transport Virtualization. One of those blogs pointed out some concerns one might have about optimal routing, OTV optimal routing. (My virtual machine — [...]