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Network wide Bonjour® – How would you support Bonjour across multiple VLANs?

As the saying goes, “every stick has two ends”. While laptops, smartphones and tablets have enabled us to be more mobile without compromising on being “connected,” with it comes challenges such as WIFI accessibility, power consumption and your ability to find network based services, like a printer wherever you happen to be.

To facilitate the ability for an end user to discover Services on a network, various Service Discovery protocols have been introduced. One of the most popular is DNS-SD (DNS-Service Discovery), which in conjunction with mDNS (multicast DNS) make up Apple’s offering called Bonjour. Bonjour enables end users to discover Services on their local network. While Bonjour is focused on smaller networks (e.g. Home Networks) with the advent of mobile customers wanting to discover services in close proximity, Bonjour becomes an ideal option to facilitate that. However, as Bonjour utilizes mDNS which is constrained to a single VLAN, customers are not able to discover services across multiple VLANs.

There are a few approaches being proposed to support Bonjour across multiple VLANs:

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Engineers Unplugged (Episode 10): Get Help for Your Home Network

November 28, 2012 at 10:25 am PST

In this week’s episode of Engineers Unplugged, VMware’s Mike Laverick (@Mike_Laverick) confesses on air that his home lab is a mess and he needs help. Good news, Cisco’s Josh Atwell (@Josh_Atwell) to the rescue! No VLANs? No problem. Let’s watch and see what Josh suggests.

Sound familiar? Suffering a similar problem? Contact us (@CommsNinja) and we might solve your problem on-air.

Mike Laverick and Josh Atwell address Mike's home lab situation.

Mike Laverick and Josh Atwell address Mike's home lab situation.

Welcome to Engineers Unplugged, where technologists talk to each other the way they know best, with a whiteboard. The rules are simple:

  1. Episodes will publish weekly (or as close to it as we can manage)
  2. Subscribe to the podcast here: engineersunplugged.com
  3. Follow the #engineersunplugged conversation on Twitter
  4. Submit ideas for episodes or volunteer to appear by Tweeting to @CommsNinja
  5. Practice drawing unicorns

Questions for Mike or Josh? Join the conversation on Twitter. Follow @CiscoDC to stay up to date on all the news.

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BYOD for Manufacturers: Tablets Welcome! Here’s how…

April 10, 2012 at 8:59 am PST

Have you noticed all those iPads around the factory? All around the production areas, the office areas and the warehouse? These  mobile connected devices and applications are quickly changing business and organizational models.

They are also changing employee habits and the way we work, as more and more users depend on tablets, such as the Apple iPad, for a variety of daily personal and professional tasks.

It’s not  just Apple, though they’re the most common. All those other tablets too.  Some of the others are  capable of a drop or two, or more onto hard concrete!

The most prevalent use case that IT departments need to solve for is the one where an employee brings their own personal device into the company and seeks to gain network access. This is happening a lot these days.  Funny, but companies are finding this is one of the ways they are attracting and keeping talent, especially young talent, so listen up!

Figure 1 illustrates the Cisco solution… Read More »

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Get Data to Its Destination Faster

Layer 3 switches can improve the performance and expandability of your small business network

The performance of your network to your small business is vital. In addition to bandwidth, you should consider whether the network you built to support your small business still meets your needs. If your network seems sluggish and is impacting employee productivity, chances are that flat network design is the cause. Adding Layer 3 switches would improve your network’s performance and enable it to grow with your fledgling business.

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3 ways to secure guest access to your small business network

You can provide guests with Internet access while ensuring the safety of your company data

I do a fair bit of traveling in my job. When selecting hotels, secure Internet access is one of my top criteria. It’s right up there with a comfy bed and fluffy pillows. I want to know that when I’m using the hotel network, I can access my corporate email or do online banking without having to worry about whether an intruder is prying on my Internet connection. It’s the same when I visit a client site. Clients very kindly let me use their Internet connection, but they want to ensure that I can’t snoop on their corporate network. Read More »

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