Packet Pushers Podcast

Topic: RSA exposure and what it means to people when the obscurity of a statement tells you nothing about what happened and why you should be very, very scared. You could even contrast this a little with the Fukushima nuclear issues due to the lack of...

This show is an introduction to OpenFlow - the why, how and what's it gonna do ?  We discuss OpenFlow with Matt Davey from Indiana University who is using OpenFlow enabled switches and wireless access points today. 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 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 You can subscribe to Packet Pushers in iTunes by clicking on the logo here. 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.

The rise in mobile devices such as iPads, HP tablets and more means that Wireless Networking is becoming part of the mainstream for network engineers. You can't ignore it anymore. When we got an invitation to the very first ever Wireless Tech Field Day in San Jose on March 17 & 18 , then we all packet our bags and headed out. 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 3x3 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 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 You can subscribe to Packet Pushers in iTunes by clicking on the logo here. 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.

Kurt Bales has a customer who wants to buy a new Data Centre Network and the three main networking vendors (Juniper, Cisco & Brocade) have pitched at him and the customer. Kurt then contacted the Pushers and said "This would make a great podcast to talk about how it looks, works and the reality of the so-called "Data Centre Fabric networks, plus I've got some questions that I'd like to get some second opinions." 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.info Twitter: @ioshints Name: Kurt Bales Web: http://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! Subscribe in iTunes and RSS You can subscribe to Packet Pushers in iTunes by clicking on the logo here. 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.  

A short episode this week because of the daylight savings change in the US and Greg didn't schedule things correctly. 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 You can subscribe to Packet Pushers in iTunes by clicking on the logo here. 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.  

Guests 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 You can subscribe to Packet Pushers in iTunes by clicking on the logo here. 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.  

Intro 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 Follow the Packet Pushers on Twitter (@packetpushers | Greg @etherealmind , and send your queries & comments about the show to packetpushers@gmail.com.  We want to hear from you! Subscribe in iTunes and RSS You can subscribe to Packet Pushers in iTunes by clicking on the logo here. 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. .

Guests 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

Intro 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 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! Subscribe in iTunes and RSS You can subscribe to Packet Pushers in iTunes by clicking on the logo here. 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. .

Intro 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! Subscribe in iTunes and RSS You can subscribe to Packet Pushers in iTunes by clicking on the logo here. 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. .

Topics for this Week 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! Subscribe in iTunes and RSS You can subscribe to Packet Pushers in iTunes by clicking on the logo here. 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.

This week we hear from HP on their Network Certification program. Rebekah Harvey, Director of Product Management for HP Global Certification and Learning got in the hot seat and answered our questions on their program

Guests This Week Jennifer Huber is the host and her twitter is @jenniferlucille and her blog http://jenniferhuber.blogspot.com/ Andrew von Nagyblakekrone.com @w4nm4n Chris Lyttle wifikiwi.com @wifikiwi #Content * 802.11n adoption in the enterprise may be driven by iPads and iPhones today, and Android in the future. This may drive the greater of adoption of wireless networking generally. * Will the prevalence of personal hotspot devices end up ruining enterprise guest networks? Guest networks are becoming important systems for external consultants and contractors and the wireless networks need to be more reliable. Discussions of some of the challenges around this. * Fast roaming and why it’s important in an enterprise environment, especially with 802.1x/EAP authentication; forthcoming Wi-Fi Alliance Voice Enterprise certification. * Keith R Parsons moving to Ruckus. Feedback Follow the Packet Pushers on Twitter (@packetpushers | Greg @etherealmind | Dan @rovingengineer | Ethan @ecbanks), and send your queries & comments about the show to packetpushers@gmail.com.  We want to hear from you! Subscribe in iTunes and RSS You can subscribe to Packet Pushers in iTunes by clicking on the logo here. 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. If you need to subscribe manually use http://feeds.packetpushers.net/PacketPushersPodcast.  

This week on the Packet Pushers we had Guests Josh O'Brien http://staticnat.com @joshobrien77 Matthew Norwood http://networktherapy.wordpress.com @matthewnorwood Jeremy Filliben http://www.jeremyfilliben.com/ @jfilliben Marko MILIVOJEVIC http://markom.info @icemarkom Topics Discussed Matthew recently posted about Myths of IT http://networktherapy.wordpress.com/2010/12/08/the-myths-of-it-part-2/ where he points out the IT people don’t REALLY need business skills just commonsense. Looking back at Cisco’s marketing for the year. Hah! How the future of Cisco networking products looking …. not too good. What do you do during your commute. If you have one (don’t be hating Jeremy because he works from home) And lost of other stuff. Listen in to the general chat from this week. 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! Subscribe in iTunes and RSS You can subscribe to Packet Pushers in iTunes by clicking on the logo here. 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.

It was planned to have a discussion around L2 Data Centre connection the VMworld in Copenhagen but Scott and I could not meetup. So we recorded this podcast to start talking about some of the issues, technology and solutions. I'm not sure that we have all the technology or knowledge in place, so keep watching for more discussions in the future. This is the second half of the show and you should probably listen to last weeks show to get the whole story at http://packetpushers.net/show-27-layer-two-2-data-centre-interconnect/ Guests Scott Lowe http://scottlowe.org Ivan Pepelnjak http://blog.ioshints.info @ioshints Layer 2 Data Centre Interconnect - open discussion The challenges of extending L2 DCI network betweens sites. Outlining the threats of large Layer 2 spaces in terms of network vulnerability. quick review of vMotion traffic and its requirements. Reviewing the impact of fault domains and L2 VLAN space as uncontrollabl It’s all about the application. Latency, latency and the impact on vMotion switchover. Greg’s article on the Traffic Trombone and Ivan’s extensions to it. It’s worth remembering that Network Load Balancers can be more effective than using vMotion is certain use cases. vMotion is not for unplanned outages or DR. More for planned outages or possibly workload balancing. Debating whether we are able to QoS L2 traffic when flowing between data centers thus answering the question about guaranteeing levels of service for multiple hosts in a VLAN. Some humour on Pseudowire over MPLS over GRE over IP. But’s its actually real. Some review on the F5 EtherIP technology and whether it’s relevant to the solution. 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! Subscribe in iTunes and RSS You can subscribe to Packet Pushers in iTunes by clicking on the logo here. 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.