Scott's Weblog The weblog of an IT pro specializing in virtualization, networking, open source, and cloud computing

Configuring Inter-VLAN Routing

Yesterday I completed the configuration of inter-VLAN routing (aka “router on a stick”, or RoaS) as part of my ongoing CCNA preparation. A couple people mentioned that they would find the configuration useful, so I’m posting what I have. This is by no means a comprehensive treatise on the subject; for that, you should look elsewhere. Google can find you lots of sites with more in-depth and detailed information on the reasons behind the necessary configuration.

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Setting up a CCNA Study Environment with GNS3 and VMware

If you were following my tweets over the last few days, you probably already know that I have been working on setting up a CCNA study environment using Ubuntu Linux, GNS3, and VMware Workstation. After a couple days of difficulties, I finally managed to make it work last night. Here are the steps that I took to make it work.

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Thinking Out Loud: What is multi-hop FCoE?

It’s been a while since I last posted a “Thinking Out Loud” post, but a Twitter discussion this morning prompted me to post this one. Last night, I posted a question to Brad Hedlund (@bradhedlund on Twitter and a great data center networking resource) regarding the Nexus 2232PP fabric extender. My tweet to Brad was this: does the Nexus 2232PP make “multi-hop FCoE” possible via NIV?

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Am I Understanding RoCE Correctly?

A couple of days ago I posted a tweet inquiring about RDMA (Remote Direct Memory Access) over Converged Ethernet, affectionately known as RoCE and even more affectionately pronounced “Rocky”. At the time I was unclear exactly what RoCE was and what it was trying to accomplish.

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Another Collection of UCS Posts

It’s been a couple of months since I posted my last collection of UCS-related posts. Since that time, I’ve collected a few more posts, so here’s another collection of UCS posts (in no particular order).

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Virtualization Short Take #38

I really should get into the habit of posting these short takes more often! It’s been a while since the last Virtualization Short Take and now I have a huge collection of items that I wanted to mention. Anyway, without further ado, here’s Virtualization Short Take #38!

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The Everything VMware at EMC Community

I think that Chad might have posted something about this new community, but I wanted to also mention it myself. The “Everything VMware at EMC” Community, part of the EMC Community Network (ECN), is a new online community that EMC has recently established. There’s a growing amount of content out there; here are a few notable items:

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Some EMC Data Domain Announcements Today

EMC Data Domain made a couple of significant product announcements today. First, EMC announced the EMC Data Domain Global Deduplication Array (GDA). Second, EMC also announced a doubling of the logical capacity for the high-end Data Domain DD880.

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Changing IP Addresses on an EMC Celerra NS-960

Changing the IP addresses on an EMC Celerra unified storage array is generally a pretty straightforward process. EMC supplies a script called clariion_mgmt that you can use to change the IP addresses on the back-end CLARiiON storage processors (SPs). In the large majority of cases, the process for changing the IP addresses on an EMC Celerra using this script looks something like this:

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Congrats to the Script-O-Mania Winners

Just last week VMware wrapped up its Script-O-Mania contest; the winners of the contest are announced here. I had the privilege—and the responsibility—of being a judge for the contest. It wasn’t an easy task; all the entries submitted were very good, and it was difficult picking only three to be the winners.

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