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DCI as an enabling framework for both Workload Mobility & Disaster Recovery using OTV and LISP

A couple of colleagues of mine wrote a  document on live Workload Mobility and Disaster Recovery for Tier-1 applications.   I think you should check it out and here’s a couple of key points that I want to highlight:

  1. A single physical Cisco, EMC, VMware infrastructure
  2. Both vMotion and SRM validated on same infrastructure
  3. Tier-1 Enterprise Applications tested

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FHRP – Egress Path Optimization from the Server to the Client

I previously discussed using LISP to optimize your client-server traffic so today I’ll discuss the reverse direction: Egress Path Optimization from the Server to the Client. Let’s go over the need for Path Optimization in the direction from Server-to-Client with some pictures and explanations.

The Virtual Machine (VM) server is configured with a default gateway IP address, 192.168.1.1, which is the next hop IP address that the VM will forward packets towards as the traffic returns to the client outside the data center.  In this data center environment, we’ve deployed the default gateway using the First Hop Redundancy Protocol (FHRP).  In reality, FHRP is an umbrella technology term that includes Hot Standby Routing Protcol (HSRP) and Virtual Router Redundancy Protocol (VRRP), two main technologies that provide transparent failover and redundancy at the first hop IP router.  Please see info on FHRP here.

Also notice that the VM default gateway is the same as the HSRP Virtual IP Address (VIP). The HSRP VIP binds itself to one of the physical HSRP Routers via an HSRP election process using Layer 2 control packets between the two physical HSRP Routers and this means that the VM default gateway, since it points to a VIP, may move between physical HSRP Routers, and of course which is then intent and design when using any type of FHRP.

In the above picture, the Path is Optimized from Server to Client, so now let’s take a look at what happens when we migrate the VM to the new data center.

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VMworld Europe – Cloudy with a Cisco Lining

VMworld Europe is just around the corner and the final preparations are being completed.  The Bella Center, in beautiful Copenhagen Denmark, is undergoing a cloudy transformation that will tickle the technical fancy of geeks and provide answers and directions for the business minded.  The cloud has come to the Bella Center and it has a Cisco lining.

Cloud is changing the way we do IT and Cisco is leading the charge.  We have the products, innovation and partnerships to help you on your journey to the cloud.  Cisco can help you own the cloud.  Stop by our booth in the Bella Center to hear about some of these great Cisco solutions:

  • Cisco Intelligent Automation for Cloud: Cisco powered orchestration and automation tools, which are key component to a successful cloud initiative.  We will demo the software in action as it powers the internal Cisco private cloud CITEIS (Cisco IT Elastic Infrastructure Services).
  • Cisco Nexus 1000v:  Cisco’s award winning virtualized switch providing networking and security solutions for the data center.  Learn how the Nexus 1000v compliments VMware vCloud Director and delivers highly secure, multitenant data center networks

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