Since DMVPN has been added to the CCIE v5 BluePrint (http://www.cisco.com/web/learning/exams/docs/ccieRS_Lab5.pdf) I figured that now was just as good of a time as any to write this blog.
DMVPN stands for Dynamic Multipoint VPN and it is an effective solution for dynamic secure overlay networks.
DMVPN is combination of the following technologies:
- Multipoint GRE (mGRE)
- Next-Hop Resolution Protocol (NHRP)
- Dynamic Routing Protocol (EIGRP, RIP, OSPF, BGP)
- Dynamic IPsec encryption
- Cisco Express Forwarding (CEF)
Topology that we will be starting with:
First thing will be to complete the base configurations on R1, R2 & R3. This will consist of configuring the IP addresses on the above interfaces and setting up the routing protocol to distribute the routes. In this case we will use EIGRP 123. Read More »
Tags: BGP, CCIE, DMVPN, EIGRP, OSPF, security
If I were launching an Ambassador Program I’d hire William Shakespeare in a “Stratford-upon-Avon” minute. Not only is he highly productive, his communication skills are excellent, and at 450 he’s gained centuries of experience.
That’s not why I’d hire him though. What makes Bill my top pick is his people expertise. He pays laser-focused attention to what people say, don’t say, like, dislike, love, hate, crave, value, and fear. In short, he puts himself in other peoples’ shoes to understand who they are and what they want, which is critical for a successful Ambassador Program.
In this article we’ll learn how Shakespeare and his passion for people can help you understand your Ambassadors and give them what they want, not what you assume they want. Read More »
Recently I was speaking to someone (Mike from New Jersey) at Cisco Live and they were raving about their journey to the Flexpod. They were seeking the best compute, networking and storage yet didn’t want to be boggled down with details when it came to the purchasing process. Converged systems like this are relatively new, and honestly when I was an IT pro; we didn’t have options like that! Not to make me sound old, but when Mike and I were talking about this approach I had a few questions.
Read the rest of Rick’s article, If you bundle it, they will come!, on the Data Center and Cloud blog.
Tags: FlexPod, UCS
In part one of this series we covered the internals of HDDs, in part two we went over the internals of SSD, In part three we continue reviewing storage concepts to refresh or learn the right lingo.
Lets start by understanding “Redundant Array of Independent Disks” (RAID). There are RAID levels like RAID0 and RAID1 that are easily to understand and others like RAID5 and RAID6, which many sysadmins misunderstand.
Read the full article, Decoding UCS Invicta – Part 3, on the Data Center and Cloud blog.
Tags: RAID, UCS
#CiscoChampion Radio is a podcast series by Cisco Champions as technologists. Today we’re talking about IWAN deployments with Cisco Communications Architect David Prall. Lauren Friedman (@Lauren) moderates and Sven Kutzer and Rikard Strid are this week’s Cisco Champion guest hosts.
Listen to the Podcast
Learn about the Cisco Champions Program HERE.
See a list of all #CiscoChampion Radio podcasts HERE.
David Prall, @pralldc, Communications Architect
Sven Kutzer @svenkutzer, Senior Systems Engineer
Rikard Strid, @rikardstrid, Founder thingk.me, Clayster AB Read More »
Tags: #ciscochampion, Cisco Intelligent WAN, IWAN