The concept of a controller based LAN network is a powerful idea, and the OpenFlow Network Foundation has participation from large networking vendors, large cloud providers and big data companies such as Google, Facebook, Yahoo and so forth. This provides some validation that the technology is of keen interest.

Recently, venture capital funding has been moving into startups working on this technology.

Ivan and Greg both agree that this is potentially a game changing technology, especially for cloud networking with the potential to disrupt significant parts of the networking industry.

Show Notes

You can Matt Davey’s blog here.

OpenFlow Website Openflow coming to Interop

Openflow project at Stanford Uni recorded a number of videos which have great demonstrations of where the product is today.

Greg’s article on TCAM can be found here

Venture capitals has funded Big Switch to develop software in this are.

This company iwNetworks makes switch hardware for Cloud networks.

Details on the OpenVswitch and their announced support for OpenFlow. This is hugely interesting if you are a cloud provider and the ability to tie your virtual switches with the configuration of the your physical switches is a powerful tool. Open vSwitch is an equivalent

Speakers

You can Matt Davey’s blog here.

Name: Ivan Pepelnjak

Web: http://blog.ioshints.info Twitter: @ioshints

Name: Greg Ferro

Web: www.etherealmind.comTwitter: @etherealmind

Feedback

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© Etherealmind for Gestalt IT, 2011. | Show 40 – Openflow – Upending the Network Industry
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Greg got to meet Tom for the first time, and bunch of other wireless nerds (Full List and talk networking. To wrap it up we recorded this show where we gove the Packet Pushers critical eye on the products and the presentations, talk about what we loved and hated, some of the interesting parts of the show.

• comparing the Spectrum Analysis tools from Air Magnet, Metageek (WiSpy) and discussing which one is best suited to different markets.
• A look at wireless controller networking and the fact that wireless manufacturers are moving towards distributed solutions and that companies like Aerohive are part of that move.
• Some info the HP and Cisco wireless networking products including discussion 3×3 wireless stadanrd

You can find the Metageek training videos on their WiSpy products on Youtube by metageektrent.

You can Jennifer Huber’s Comparison video of MetaGeek and Air Magnet .

Greg’s post at EtherealMind.com on Controller based networks and might be worth contrasting with the move away from controller based networks in wireless AeroHive, HP, ‘Big Boner’ AP’s and Wireless LAN Controllers

Guests

Jennifer Huber is @jenniferlucille and her blog http://jenniferhuber.blogspot.com/

Chris Lyttle | Twitter: wifikiwi.com @wifikiwi

Tom Hollingsworth http://networkingnerd.wordpress.com | Twitter: @NetworkingNerd

Presenting Sponsors

Here are the presenting companies from the Wireless Tech Field Day:

	Aerohive	@Aerohive
	AirMagnet	@AirMagnet_Inc
	Fluke Networks	@FlukeNetworks
	HP	@HP_Networking
	MetaGeek	@MetaGeek
	Cisco Wireless

Feedback

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© Etherealmind for Gestalt IT, 2011. | Show 39 – Unplugged on Tech Field Day Wireless
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So we rounded up Ivan from IOS Hints and Greg from EtherealMind to record a fast, furious and focussed look at the state of play with the three data centre fabrics today. Lots of speculation, wild guesses and deep diving followed. I learned heaps.

Topics that we covered: * data centre fabric design, TRILL, Borg or Big Brother approaches, * FCoE, iSCSI, NFS, Routing, * Juniper, QFX 3500, QFabric, ERX, ICN, * Brocade, VDX, VCS, FSPF, * Cisco, Nexus 7000, Nexus 5000,

Name: Ivan Pepelnjak

Web: http://blog.ioshints.net Twitter: @ioshints

Name: Kurt Bales

Web: www.network-janitor.net Twitter: @networkjanitor

Name: Greg Ferro

Web: www.etherealmind.comTwitter: @etherealmind

Links and Posts

This post is where Ivan looks into TRILL and STP interaction at the edge of the L2 network. IOSHints TRILL/FABRIC PATH – STP INTEGRATION

Here is the post where Ivan outlines the Borg / Big Brother architectures. THE DATA CENTER FABRIC ARCHITECTURES

Brad Hedlund’s post on  Inverse Virtualisation – it seems Cisco might be forgetting that  there is more than one way to do it and Brad talks about the the other ways to do it while pointing out that the way HE does it is best. Keep up the good work Brad and stay “on message” for Cisco – keep pulling for the team.

Greg’s post at EtherealMind.com on Controller based networks and might be worth contrasting with the move away from controller based networks in wireless AeroHive, HP, ‘Big Boner’ AP’s and Wireless LAN Controllers

Feedback

Follow the Packet Pushers on Twitter (@packetpushers | Greg @etherealmind | Tom Hollingsworth), and send your queries & comments about the show to packetpushers@gmail.com.  We want to hear from you!

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© Etherealmind for Gestalt IT, 2011. | Show 38 – Comparing Data Centre Fabrics From Juniper, Brocade and Cisco
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Guests

Terry Slattery http://www.netcraftsmen.net

Tom Hollingsworth http://networkingnerd.wordpress.com | Twitter: @NetworkingNerd

John McManus http://etherealmind.com/author/mcmanusj/ | Twitter: @_johnmcmanus_

Matthew Norwood http://networktherapy.wordpress.com @matthewnorwood

and last, and the very least.

Greg Ferro http://etherealmind.com| Twitter @etherealmind

Topic 1 – Cisco UC or Microsoft Lyncs

What’s the difference ? Does anyone care ?

http://go.microsoft.com/?linkid=9742864

http://technet.microsoft.com/en-us/library/gg293124.aspx

http://www.cisco.com/en/US/products/sw/voicesw/ps556/index.html

Topic 2 – Data Cabling

Talking more about MPO cabling and data centre cabling design. Which led into a discussion about data centre floors, power density, suspended cabling floors, contained hot or cold aisles and other related topics.

Greg had a blog post http://etherealmind.com/notes-physical-connectors-40-100-gigabit-ethernet/.

Topic 3 – IPv6 and NAT

Because we haven’t discussed it enough yet.

Carrier Grade NAT. Deep Packet Inspection and the pathways is forces onto the traffic flows.

Topic 4 – Designing the Network from the Ground Up

How do you approach design a network form the ground up ?

Feedback

Follow the Packet Pushers on Twitter (@packetpushers | Greg @etherealmind | Tom Hollingsworth), and send your queries & comments about the show to packetpushers@gmail.com.  We want to hear from you!

Subscribe in iTunes and RSS

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Media Player and MP3 Download

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© Etherealmind for Gestalt IT, 2011. | Show 37 – Even More IPv6 Ready Than Last Week
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Tom Hollingsworth http://networkingnerd.wordpress.com | Twitter: @NetworkingNerd

John McManus http://etherealmind.com/author/mcmanusj/ | Twitter: @_johnmcmanus_

Greg Ferro http://etherealmind.com| Twitter @etherealmind

Topic 1 – iPad 2

Apparently none of us are going to buy one, because we’ve already got one.

Topic 2 – What is Cloud Computing

Although we tire of talking about Cloud Computing, it’s seem that there is more to say. Talking about what building you own cloud is about including accounting/budgeting problems and server/networking operation problems. We also talk about the lack of bandwidth and a wide range of other topics.

Topic 3 – Catalyst 6500 Services module strategy

What’s the future of Cisco Cat6500 services modules strategy since the current modules are obviously not scaling to the future. Is the Nexus 7000 suitable for use in the Campus ?

Somehow we deviated into a discussion about the relevance of the ASR 1K/9K routers and their fit into a network design.

Topic 4 – IPv6 Ready program

A look at the http://www.ipv6ready.org/ program which led into a discussion around how to deploy IPv6 into an enterprise (hint: it’s doesn’t involve deploying IPv6).

Topic 5 Tech Field Day Wireless

I’ll be in San Jose for the http://gestaltit.com/field-day/2011-wireless/ Gestalt IT Tech Field Day. Tom Hollngswoth and Mat Norwood (regular guests on the show) are also

Feedback

Follow the Packet Pushers on Twitter (@packetpushers | Greg @etherealmind | Tom Hollingsworth), and send your queries & comments about the show to packetpushers@gmail.com.  We want to hear from you!

Subscribe in iTunes and RSS

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Media Player and MP3 Download

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© Etherealmind for Gestalt IT, 2011. | PPP Show 36 – IPv6 Ready
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This is Packet Pushers Media Mungle, new format were we gather people from from the technology media to sit down around the virtual workbench and look back at events with beady media eye. We’ll take closer look at what’s been happening and discuss what’s happening in a little bit more detail. We got a list of topics to discuss and here is who’s who in the zoo today.

Guests

Mike Fratto, Editor, Network Computing. networkcomputing.com | Twitter: @ mfratto

Shamus McGillicuddy, Director of News and Features for searchnetworking.com | Twitter : @shamustt

Matters At Hand

Juniper QFabric and it’s impact on the market

Cisco SecureX strategy – is there a plan ? First it was Borderless Networks, now it’s SecureX. Along the way we lost a lot of products, and seen a lot of delays.

Any news from Brocade ? Nah, still nothing.

There is also the Huawei/Symantec and Force10 deal which could be interesting. Breathes some life into Force10

Feedback

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You can subscribe to the RSS feed or head over to the Packet Pushers website to download the MP3 file directly from the blog post for that episode.

© Etherealmind for Gestalt IT, 2011. | Show 35 – Media Markup – A Garden of Switches
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• Tom Hollingsworth http://networkingnerd.wordpress.com | Twitter: @NetworkingNerd
• Brandon Carroll http://globalconfig.net/ | Twitter: @brandoncarroll
• John McManus http://etherealmind.com/author/mcmanusj/ | Twitter: @_johnmcmanus_

Topic 1 Juniper QFabric Announcement

Is this the point we start to re-think the 3 Layers of Network Architecture, will the future generation laugh at core, distribution and access designs. What are the implications for future designs?

Cisco response is kind of hysterical: http://blogs.cisco.com/news/ciscos-unified-fabric-in-the-data-center/

Greg posts about Diverging Ethernet Switch markets is http://etherealmind.com/diverging-ethernet-switch-markets/

Greg’s post on controller based network sis http://etherealmind.com/controller-based-networks-for-data-centres/

Topic 2 – Who’s scared of multivendor networking ?

Does anyone remember those days ? There seem to be a drive at proprietary technology around the Data Centre these days, QFabric Unified Fabric, this does not help with multivendor environments.

Topic 3 – What impact has could computing on network design for the network Design Engineer ?

I see network a bunch of cuboids linked together which allows communication between end point, I see no fluffiness here.

Topic 4 – The Last of the Bogons / Bogon begone

RT @_JohnMcManus_: BOGON updates tonight, feeling all sentimental as this should really be the last time bye bye BOGONS

http://www.team-cymru.org/Services/Bogons/

Topic 5 – Backplanes and Frames – User Question

From: Travis Marlow travis.marlow@gmail.com

Message: Does a tagged frame stay tagged when it enters a switch and traverses the backplane? I have always wondered this and haven’t found the answer in all of my studies.

Cheesy Bogon Jokes

A Bogon walks into a bar. The Bartender says… You’re not supposed to be here!

A Bogon walks into a bar. The Bartender says….. I thought you were extinct !

A Bogon walks into a bar and says to the Bartender… Take me to your leader!

Feedback

Follow the Packet Pushers on Twitter (@packetpushers | Greg @etherealmind | >Tom Hollingsworth <), and send your queries & comments about the show to packetpushers@gmail.com.  We want to hear from you!

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Media Player and MP3 Download

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© Etherealmind for Gestalt IT, 2011. | Show 34 – Breaking the Three Layer Model
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This is Packet Pushers Media Mungle, new format were we gather people from from the technology media to sit down around the virtual workbench and look back at events with beady media eye. We’ll take closer look at what’s been happening and discuss what’s happening in a little bit more detail. We got a list of topics to discuss and here is who’s who in the zoo today.

Guests

• Mike Fratto, Editor, Network Computing. networkcomputing.com | Twitter: @ mfratto
• Shamus McGillicuddy, Director of News and Features for searchnetworking.com | Twitter : @shamustt
• James Duffy, networkworld.com | Twitter: @jim_duffy

Matters At Hand

Topic 1 – Cisco Announces a Dividend – Why ?

Precis: Cisco announced a dividend for 2011. Is there a bigger story to this ? Links: http://www.reuters.com/article/idUSTRE68D42P20100914?pageNumber=1

Topic 2 – Cisco’s disappointing outlook for its fiscal Q2.

Why did Cisco downcast its upcoming quarter while its peers are expecting double digit growth? Is it a Cisco issue alone? Misexecution? Spread too thin in too many adjacent markets? They gained share in core routing and switching markets in fiscal Q1/calendar Q3 so it does not appear that they are taking their eye off the ball. What’s at the root of Cisco’s challenging quarter?

Topic 3 – Network Management ?

The Data Center Orchestration market heating up with LineSider acquisition and joint development with BMC. Is it imperative for Cisco to own this technology (vs. partner) in order to be successful in next-gen data center opportunities? Network management has always been a chink in Cisco’s armour — will it impair the company’s efforts in data center? Or will they get it right this time around? Do they have any wiggle room? Must they succeed in DC mgmt./orchestration — ie, be a leading supplier or provider of these solutions — in order to succeed in DC/cloud overall?

Topic 4 – Wireless LAN market activity

One general topic: wireless LAN market activity. Smaller players like Aerohive and Meraki have made interesting moves in recent weeks. Cisco announced a new WIPS solution. And HP is rumored to be making a major move soon.

Feedback

Follow the Packet Pushers on Twitter (@packetpushers | Greg @etherealmind | Ethan @ecbanks), and send your queries & comments about the show to packetpushers@gmail.com.  We want to hear from you!

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© Etherealmind for Gestalt IT, 2011. | Show 32 – Media Mungle
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With the upcoming Ipocalypse it seems like time to start discussing IPv6 in detail. Although we previously covered IPv6 in Show 21 – IPv6 for the Win! Part 1 and Show 21 – IPv6 for the Win! Part 2 we think that IPv6 is big enough to have another shot.

Guests

• Shivlu Jain http://www.mplsvpn.info | Twitter: @shivlu
• ruhann du plessishttp://routing-bits.com | Twitter : @routingbits
• Kurt Bales, Eintellego www.network-janitor.net | Twitter: @networkjanitor
• Skeeve Stevens , Eintellego www.eintellego.net | Twitter: @skeevework

Matters At Hand

Boche.Net – VMware and jumbo frames

• Boche.net – Jumbo Frames Comparison Testing with IP Storage and vMotion

IPv6 – It’s almost here

• public IPv6 allocation and how the RIRs will respond.
• https://www.arin.net/knowledge/rirs/ARINcountries.html
• Shivlu points out that 6RD is going to be the most popular choice.
• http://tools.ietf.org/html/rfc5569
• http://en.wikipedia.org/wiki/IPv6_rapid_deployment
• http://www.renesys.com/blog/2011/01/egypt-leaves-the-internet.shtml
• cablemap.info shows a global map withthe undersea cables around the globe.
• http://revk.www.me.uk/2011/01/expert.html Blog post suggesting that the ARIN is working up a media event for the last of the IPv4 addresses.

Egypt blocking off the Internet

• Observations, comments. Statements of the obvious.
• Skeeve points out that at recent Internet conference Egypt wants to be able to tap all the backbone cables.
• global prefix and it’s failure for carrier dependent deploymnt

Feedback

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© Etherealmind for Gestalt IT, 2011. | Show 33 – IPv6 It All Comes Down to Money
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A mixed bag of topics this week, some from people who have written in and some more general topics.

• Capacity planning a firewall or router – what are the issues and technical limitations
• Why are we using 1Gb Ethernet ports at the access layer when we don’t need them ?
• A look at the Skype outage – Skype’s Blog
• Using EIGRP as the IGP in an MPLS core – why not ?

Feedback

Follow the Packet Pushers on Twitter (@packetpushers | Greg @etherealmind | Ethan @ecbanks), and send your queries & comments about the show to packetpushers@gmail.com.  We want to hear from you!

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Media Player and MP3 Download

You can subscribe to the RSS feed or head over to the Packet Pushers website to download the MP3 file directly from the blog post for that episode. Also, subscription options for Zune, Boxee and a range of other podcatchers are listed on the website.

© Etherealmind for Gestalt IT, 2011. | Show 31 – Don’t Take It Too Seriously
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