19 novembre 2012

How to- VLAN configuration on virtual switches, physical switches, and virtual machines

There are three methods of VLAN tagging that can be configured on ESXi/ESX. Our presentation today provides a brief overview of these methods that can be configured on ESX/ESXi: External Switch Tagging (EST), Virtual Switch Tagging (VST), and Virtual Guest Tagging (VGT). For further information and steps, refer to the KB article:VLAN configuration on virtual switches, physical switches, and virtual machines (1003806).   --> Please see the rest on the blog... [Lire la suite]
Posté par jcdemarque à 22:30 - - Permalien [#]
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12 novembre 2012

Windows 8's enterprise play: evolution not revolution

Microsoft does expect businesses to use Windows 8: it's not just for consumers. However, based on a seminar it held in London this week, its adoption looks like being a long, slow process.... It often takes businesses several years to roll out a new version of Microsoft Windows, especially if they have a lot of in-house applications to test. With a large section of the market still moving from XP to Windows 7, there are relatively few prospects for enterprise-wide Windows 8 projects. None the less, Erwin Visser, Microsoft's senior... [Lire la suite]
Posté par jcdemarque à 09:22 - - Permalien [#]
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23 avril 2012

The day software ate Cisco

Cisco’s track record with software tells us the company will not survive the shift to software-defined networking It hasn’t happened yet. It’s another of my predictions. But it suddenly struck me this week, as I read about the latest developments in cloud networking. Five or so years from now, the day will come when Cisco will have shrunken almost to nothing, eaten by software. Marc Andreessen’s phrase, “software is eating the world,” coined for a Wall Street Journal article last August, succinctly captures the single most... [Lire la suite]
Posté par jcdemarque à 15:18 - - Permalien [#]
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22 novembre 2011

Troubleshooting ESXi networking with LLDP

One common issue with networking in virtualized environments is the outgoing ports from the virtual switches to the physical network switches. Configuring with VLANs and similar must be done very carefully to ensure that all ports are correctly setup. It is often quite hard to track patch cables going from the server chassis to the switch port and it is often also difficult to determine the relation between the ESXi server NIC ports to the VMNICs visible inside ESXi. A very helpful tool is a network discovery protocol, for... [Lire la suite]
Posté par jcdemarque à 15:16 - - Permalien [#]
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13 novembre 2011

Hyper-V Extensible Switch in Windows Server 8

--> A major inovation in Windows Server 8 Hyper-V !!!!   Mike Neil has blogged about the Hyper-V Extensible Switch in Windows Server 8 over on the Server and Cloud Platform blog (here:http://blogs.technet.com/b/server-cloud/archive/2011/11/08/windows-server-8-introducing-hyper-v-extensible-switch.aspx). This is something that I am actually quite excited about.  Specifically – I am really interested to see what ideas other people are able to come up with around extending the capabilities of virtual networking. As Mike... [Lire la suite]
Posté par jcdemarque à 17:08 - - Permalien [#]
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04 août 2011

Conseils d’implémentation d'un stockage sur Ethernet

Un très bon article sur les considérations d'implémentation d'un stockage Ethernet (NFS, iSCSI...)   En cette période de vacances, ce petit post vise à vous faire réviser les quelques conseils pour l'implémentation d'un stockage Ethernet afin de l'utiliser dans vSphere. En espérant qu'il vous soit utile, bonne lecture.PS pour mes ouailles : je vous interroge en rentrant :) Le stockage sur Ethernet existe depuis de nombreuses années sous la forme de Network Attached Storage ou NAS. Bien que sa facilité d’implémentation soit... [Lire la suite]
Posté par jcdemarque à 19:49 - - Permalien [#]
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25 août 2008

Juniper, un concurrent valable pour Cisco?

http://www.reseaux-telecoms.net/actualites/lire-cisco-demonte-au-profit-de-juniper-chez-amazingmailcom-18662.html Ce sont des tarifs de maintenance trop élevés qui ont amené la société Amazingmail.com à démonter tous ses équipements de réseau Cisco pour les remplacer par leur équivalent chez Juniper. L'opération a permis de revoir les règles de sécurité des pare-feux. Amazingmail.com est une petite société d'emailing basée à Scottsdale (Arizona). Elle emploie 90 personnes, réparties entre trois sites. C'est sans état d'âme... [Lire la suite]
Posté par jcdemarque à 14:09 - - Permalien [#]
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