Greg Ferro
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Greg Ferro
Poster: Only Two Problems With IP Routing
It is often said that there are only problems in the design of IP Routing protocols. Propagation – how routes are notified to all elements on the network. Expiration – how to detect and notify that routes are no longer valid. But most people quickly realise that silent third problem – recursion. […]
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The Hardware Inside Your Network Device
I’ve spent a lot of time researching the hardware and technology that goes inside switches and routers. In part this is because I’m in the early stages of a book on White Box Networking where I needed to be able to put together information about the technology but really because software can only deliver what […]
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Show 187 – The Silicon Inside Your Network Device – Part 2
This is Part 2 in a special series looking at the silicon and hardware inside your network device. Although software will be at heart of network innovation, it will still run on hardware and it’s time to expose the internals of our network hardware and understand the hardware architecture inside a typical device. Many people […]
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The post Show 187 – The Silicon Inside Your Network Device – Part 2 appeared first on Packet Pushers Podcast and was written by Greg Ferro.
The Cost of Software Licensing in Networking – Is the Price Worth It ?
I've been evaluating Cisco Nexus products for a customer. So far, its taken 10h20m to check which licenses are required for each platform. And I'm still not confident that it's correct and accurate.
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Blessay: We Need To Buy Infrastructure Dolls Not Babies For The Private Cloud
The future of private infrastructure ownership is moving to a new model combines the old with the new that I describe as “dolls and babies” where the major transformation in infrastructure ownership is the transition from having babies to owning dolls. Infrastructure as Babies Enterprises buy infrastructure like people have babies. It takes months to […]
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Coffee Break 7
This is “The Coffee Break”. A podcast on state of the networking business where we discuss vendors moves and news, analysis on product and positioning, and look at the business of networking. In the time it takes to have coffee break. Topics Cisco Reveals OpenFlow SDN Killer:OpFlex protocol for ACI offered to IETF, OpenDaylight Researchs […]
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The post Coffee Break 7 appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Coffee Break 7
This is “The Coffee Break”. A podcast on state of the networking business where we discuss vendors moves and news, analysis on product and positioning, and look at the business of networking. In the time it takes to have coffee break.
The post Coffee Break 7 appeared first on Packet Pushers.
Coffee Break 7
This is “The Coffee Break”. A podcast on state of the networking business where we discuss vendors moves and news, analysis on product and positioning, and look at the business of networking. In the time it takes to have coffee break.Blessay: Overlay Networking, BFD And Integration with Physical Network
Lede: In discussions with a stealthy networking startup today, we were discussing how their overlay network technology for the SDN WAN was able to to detect network blackouts and brownouts in the physical network. Their answer was to run Bi-directional Forwarding Detection (BFD) in the overlay tunnels. Now you have effective quality and service detection in the overlay network.
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Thought for My Day: Existing Networks are Self Automated and Policy Driven
Today’s Networks are auto-configuring and self-orchestrating. When you connect a server to network device, the device will identity the MAC address of the server and update it’s database. The server can make a request to a DHCP server and self configure. A network can be intentionally designed so that multiple paths exist through the network. […]
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Blessay: The Internet is a “Cloud” for Networking
Can the Internet be the “Cloud Network” ? If so, when could the transition happen (if it hasn’t started already) ?
Supposition/Hypothesis As a technology, the Internet has strikingly similar properties to sharing Compute and Storage as ‘Cloud’. A large pool of resource that can be used or shared between many parties. The total pool of resource is dynamically allocated. Internet bandwidth is shared between all users and access is determined by bandwidth purchased at the network edge
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Poster: Network Safety Starts With You
Being a Network Engineer is a hazardous and even dangerous profession yet the Health and Safety division doesn't seem to care about the network damage and prevention.
It's time for us to stand up and start our own ITIL-compliant safety campaign. I've prepared the following handy sign for you to print and place on your cubicle wall to remind you to be safe out there.
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Coffee Break – Show 6
News of the Networking Industry in the time it takes to drink a coffee (more or less). This week we are joined by Amy Engineer to parse the news and dig into the business of technology.
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The post Coffee Break – Show 6 appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Coffee Break – Show 6
News of the Networking Industry in the time it takes to drink a coffee (more or less). This week we are joined by Amy Engineer to parse the news and dig into the business of technology.
The post Coffee Break – Show 6 appeared first on Packet Pushers.
Coffee Break – Show 6
News of the Networking Industry in the time it takes to drink a coffee (more or less). This week we are joined by Amy Engineer to parse the news and dig into the business of technology.Rant: Living with Legacy and Public Cloud Farting
No matter how hard the clouderati click the heels of their brogues together and repeat “public cloud is better” , the simple fact is that most companies have large amounts of IT infrastructure that works just fine and is profitable. To make matters worse, the cost of transformation exceeds the potential financial return while creating […]
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Show 186 – The Silicon Inside Your Network Device – Part 1
This is Part 1 in a special series looking at the inside of your network device. Although software will be at heart of network innovation, it will still run on hardware and it’s time to expose the internals of our network hardware and understand the hardware architecture inside a typical device. Many people are surprised […]
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The post Show 186 – The Silicon Inside Your Network Device – Part 1 appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Response: RFC 7167 – A Framework for Point-to-Multipoint
Frame Relay was to teach multipoint networking to upcoming engineers and we recently abandoned on the curriculum. Now it's back in MPLS-TP.
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Brocade Vyatta & Forwarding Performance on X86 Server
It's a constant and oft repeated fallacy that software on x86 servers will never forward packets at speed. Here is Vyatta explaining why their software will be able to go past 100 Million Packets Per Second this year on standard COTS hardware.
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Response: Speeds and Feeds › Of Money, Responsibility, and Pride
Steve Marquess who manages the business side of the OpenSSL Foundation talks about the shabby state of corporate support for open source development. I want to call out this paragraph first (although many other are more interesting), about the courage and discipline it takes to publish your work in the face of fear of public […]
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