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HP FlexNetwork Architecture poster – Deployment Scenarios #hp_networking #HPConverge #HPFlexNetwork

March 30, 2013 Comments off

Download the poster here: http://bit.ly/X3ZLn3

HP FlexNetwork Architecture Poster

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HP Networking Product Portfolio Guide #hp_networking #HPConverge #HPFlexNetwork

March 30, 2013 Comments off

Download the HP FlexNetwork Portolio Guide here: http://bit.ly/16oebkL

HP FlexNetwork Porfolio Guide

HP Converged Infrastructure Reference Architecture Design Guide – Accelerating IT with HP Converged Infrastructure #HPConverge

March 29, 2013 Comments off

The  technical white paper can be downloaded here:  http://bit.ly/YJ00o0

Courtesty of HP Converged Infrastructure

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HP #FlexFabric Reference Architecture – Applying HP Converged Infrastructure to data center networks #HPConverge

March 29, 2013 Comments off

HP FlexFabric Reference Architecture – Applying HP Converged Infrastructure to data center networks

The  technical white paper can be downloaded hereL http://bit.ly/ZsXvlK

Courtesty of HP Converged Infrastructure

 

HP ConvergedNetwork WhitePaper

HP ConvergedNetwork WhitePaper TOC

Overview of the Guide

This guide is intended for technology decision-makers, solution architects, and other experts tasked with improving data center networking. It can serve as a baseline for network planning and design projects.

It is said, “You cannot chart your course without first knowing whence you came.” This also applies to data center architecture. However, many technical guides take the opposite approach. They attempt to sway the reader towards specific technical directions based on the merits of a current technology or standard. That approach often loses the reader because it does not provide a context for why the new technical approach was developed in the first place.

This document will frequently reference technology trends in the data center which have and are being driven through virtualization and standards. It will also introduce issues that confront data center architects in this fast-paced, results-driven, and security-minded industry.

Technical documents often promote a vendor’s products or vision. This document takes a slightly different approach. Rather than put HP’s vision for converged network infrastructure first, this guide instead presents the building blocks for that vision. It does this by first identifying the most important IT trend today—virtualization of resources at all levels. It then moves forward by introducing HP-supported technologies that enhance virtualized computer networks. Finally, it provides FlexFabric Reference Architecture examples for different types of virtualized server deployments using a layered approach.

The FlexFabric Reference Architecture guide is less of a discussion on specific HP equipment, and more of an overall focus on two things—virtualization and HP Networking technologies that support virtualization. It provides another level of detail to complement the HP Converged Infrastructure Reference Architecture Solution Block Design Guide http://h20195.www2.hp.com/v2/GetPDF.aspx/4AA2-6453ENW.pdf

HP believes simplification is the overriding key to success in networks supporting virtualization. This document provides guidance on network simplification for virtualized deployments that do not sacrifice performance or deployment flexibility.

The major concept areas that will be covered are:

  • Virtual server networking
  • Securing the virtual edge
  • Managing the virtual edge
  • Converged network infrastructure

This approach allows data center architects and IT teams to develop new and more flexible data center models and methodologies. By doing so, IT can meet new demands head-on, rather than forcing businesses to adapt to technology limitations.

…Converged network infrastructure: unifying data and storage networks

Convergence is a technical term historically used to express the combining of voice and data onto the same network fabric. Now expressed as a converged network infrastructure, it encompasses the sharing of network resources between data and storage networks. This trend constitutes a move towards a unification of data and storage networks.

Network technologies like Fibre Channel, used to connect storage resources to computers, differ substantially from network technologies used to connect computer networks. Although high in performance, these network types create two dissimilar data center networks (LAN/WAN and storage), which increase the number of cables and management.

Technologies such as blade servers have addressed this challenge by drastically reducing the number of interconnections. Blade servers have simplified the network by reducing cables and Ethernet ports by over 75 percent. Converged network infrastructure can reduce data center complexity by an additional 50 percent, using technologies like Fibre Channel over Ethernet (FCoE), and more efficient technologies like data center bridging (DCB), also known as converged enhanced Ethernet (CEE).

ConvergedInfra

All of these emerging network technologies have an effect on how data centers are being planned for the future, but it is also important to understand how these technologies evolved.

The remainder of this section focuses on identifying what is currently used in data center network deployments, as well as identifying HP’s vision of converged network infrastructure….

vMotion over Distance and Stretched VLAN across L3 WAN – Cisco OTV is your Answer @stretchcloud

March 24, 2013 1 comment

Not a new article, but this topic came up in debate for a current project working on but illustrated the point nicely of when you dont have L2 across sites and must use routed networks.

Below courtesy @stretchcloud. Read the article here: http://stretch-cloud.info/2012/07/vmotion-over-distance-and-stretched-vlan-cisco-otv-is-your-answer/

…I will talk about how do you stretch the VLAN onto a different DC.

Yes, I am talking about Cisco OTV. Cisco’s OTV provides a mechanism to transport native Layer-2 Ethernet frames to a remote site. With a standard Layer-3 WAN, there is no way to bridge layer-2 VLANs, and as a result, communication between two sites must be routed. Because of the routing aspect, it is not possible to define the same VLAN in two locations and have them both be actively transmitting data simultaneously.

Because OTV can operate over any WAN that can forward IP traffic, it can be used with a multitude of different underlying technologies. It provides mechanisms to control broadcasts at the edge of each site, just as with a standard Layer-3 WAN, but also gives you the ability to allow certain broadcasts to cross the islands. OTV only needs to be deployed at certain edge devices, and is only configured at those points, making it simple to implement and manage. It also supports many features to optimize bandwidth utilization, provide resiliency and scalability.

Let’s look at how OTV operates. Here we have two sites separate by a standard Layer-3 WAN connection. OTV is deployed across the WAN by configuring it on an edge switch at both sites. Each end of the OTV “tunnel” is assigned an IP address. Both OTV switches maintain a MAC-to-Next Hop IP table so that they know where to forward frames in a multi-site configuration.

When a host at one site sends a frame to a host at the other site, it can determine the MAC address of the other host, since it is on the same VLAN/network. The host sends the Ethernet frame, which is accepted by the OTV switch and then encapsulated in an IP packet, sent across the WAN, and subsequently decapsulatedby the remote OTV switch. From here, the Ethernet frame is delivered to the destination as if it had been sent locally.

Concept in Practice: Workload Relocation Across Sites

In the event that there is a planned event that will impact a significant number of resources, services must be moved to an alternate location. Unfortunately, because the networks are disjointed, there is no way to seamlessly migrate virtual servers from one location to another without changing IP addresses. As a result, Site Recovery Manager is used to provide an offline migration to the second site, and update DNS records to reflect the new IP addresses for the affected servers. Once the event is complete, another offline migration is performed to restore services to the primary site.

Concept in Practice: vMotion over Distance with OTV & Stretched VLANs

By using OTV in this situation, instead of having to use SRM to emulate a disaster situation, vMotion can be used to migrate the VMs from one site to the other. While this migration is still an offline event, it does provide a much simpler solution to implement and manage by allowing the VM to maintain it’s network identity in either location.

In addition to addressing the initial challenge, OTV provides additional benefits. By having two functional sites with the same network attributes, it is possible to split workloads for services, providing fault tolerance and redundancy. So, if the primary site does have a planned event, failing resources over to the second site may not even be necessary. It also allows the infrastructure to scale by having added ESXi servers operational at the second location to distribute the load.

#VirtualConnect for Dummies #CloudSystem Matrix #HP #IaaS #Cloud

May 28, 2012 Comments off

Fill out the Form here: http://h18004.www1.hp.com/products/blades/virtualconnect/connectfordummies/regForm.html

The HP Virtual Connect team is pleased to announce that HP Virtual Connect for Dummies® -2nd Edition is now available as an e-book.
•What’s new with Virtual Connect and all about the new Virtual Connect FlexFabric Module
•How HP Virtual Connect simplifies your data center, lowers costs, and saves time
•About the HP Virtual Connect product family

#VMware Updated KB: Overview of vNetwork Distributed Switch concepts #vSphere5

September 24, 2011 Comments off

VMware KB: Overview of vNetwork Distributed Switch concepts.

 KB Article: 1010555
Updated: Sep 21, 2011


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