Greg Ferro
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Greg Ferro
Show News: Network Down Stories and The Nightmare Before Christmas
Last year, we published two shows of horror stories about network outages and these shows generated a HUGE response from the audience. People emailed us about laughing, head nodding and “that happened to me”. Because you loved it, we are going to do it again. Because of time constraints the format will be a little […]
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The post Show News: Network Down Stories and The Nightmare Before Christmas appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Response: The Inner Ring
This is some of Russ White's finest writing on the career development using a lecture from CS Lewis as a baseline
The post Response: The Inner Ring appeared first on EtherealMind.
Network Break 19
Continuing our regular look at the news in Networking and Cloud.
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The post Network Break 19 appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Musing: Subscription License Economics
The rise of software licensing in networking changes some of my assumptions about the 5 year cost of ownership of products. Roughly, lets assume that you are buying virtual appliances like firewalls, DNS/DHCP, IDS/IPS, proxy servers and load balancers and that you pay some type of yearly license to use the product. Capital Upfront The legacy […]
The post Musing: Subscription License Economics appeared first on EtherealMind.
Response: I’m Terrified of My New TV
Smart Televisions are tracking everything you do and sending that data to unknown services: The amount of data this thing collects is staggering. It logs where, when, how, and for how long you use the TV. It sets tracking cookies and beacons designed to detect “when you have viewed particular content or a particular email […]
The post Response: I’m Terrified of My New TV appeared first on EtherealMind.
Blessay: Over-Capitalized and Under-Invested in Human Infrastructure
LEDE: One of the hardest parts of DevOps movement is explaining the unique value to IT Leadership in conventional organisations that rely on ITIL principles. I'm having success by framing the debate in terms of over-capitalised on assets and under-invested in human infrastructure.
The post Blessay: Over-Capitalized and Under-Invested in Human Infrastructure appeared first on EtherealMind.
PS Show 35 – OEM SFP and QSFP Modules – Do They Work ?
Do you really need genuine SFP and QSFP modules in your network equipment ? We talk technical with a supplier of OEM modules for your network equipment about the technology, functions and operation of non-vendor SFP optics and modules.
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The post PS Show 35 – OEM SFP and QSFP Modules – Do They Work ? appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Network Break 18
This week we round up the news and talk about latest vendor happenings.
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The post Network Break 18 appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Response: Cisco Announces Membership of Open Compute Project
A blog post on the Cisco’s website announces Cisco joins Open Compute Project as a Gold member: To that list, I am pleased to announce that we recently joined the Open Compute Project as a Gold member. The motivation behind our membership is similar to our involvement in the aforementioned open networking projects: we see […]
The post Response: Cisco Announces Membership of Open Compute Project appeared first on EtherealMind.
Tech Notes: Ping Sweep an IP Subnet
This is my current goto code snippet for using the BASH command line to perform a ping sweep through an IPv4 subnet. for i in `seq 1 255`; do ping -c 1 192.168.1.$i | tr \n ' ' | awk '/1 received/ {print $2}'; done This script is deliberately simple, only works for /24 subnets but […]
The post Tech Notes: Ping Sweep an IP Subnet appeared first on EtherealMind.
Thoughts of My Day: VCE Always Was An EMC Property
EMC announced during it’s quarterly results that it was taking a larger position in VCE. VCE was always an EMC asset, co-operation with partners Cisco, Intel and VMware has never been strong and this simply closes out the current chapter. The end result positions EMC to also be a “IBM style” company with a full […]
The post Thoughts of My Day: VCE Always Was An EMC Property appeared first on EtherealMind.
Show 209 – HP Networks and Network Management – Sponsored
Talking about Network Management get mixed reactions in the network industry with a rich history of products that didn't match our expectations or needs. In today's sponsored podcast, HP Networking continues their mission to change the way network engineers feel about their NMS's through the HP Intelligent Management Center.
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The post Show 209 – HP Networks and Network Management – Sponsored appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Response: HowTo Configure IP Multicast PIM on ECMP| Mellanox Interconnect Community
Today I spent several hours reading up on PIM Bidirectional for an customer implementation on an ECMP networking. I realise that somewhere inside my head there is a lot of IP Multicast knowledge that hasn’t been lost but it is definitely hiding. I had to re-learn a number of concepts before I started feel confident. […]
The post Response: HowTo Configure IP Multicast PIM on ECMP| Mellanox Interconnect Community appeared first on EtherealMind.
Confusing Times in Networking and Cognition Jumps
I’ve been researching four different and distinct types of networking in the last few weeks. I’m finding that the cognition required to jump between technologies is making my head hurt. Here is a summary of four technology areas that interest me this week. Optical Networking As part of research project I have been getting deep […]
The post Confusing Times in Networking and Cognition Jumps appeared first on EtherealMind.
Response: http2 explained
Been researching HTTP2 protocol on the basis that is will, more or less, be the dominant protocol on the Internet and everywhere else. Aside from the sense of excitement I get from looking at solving old problems, HTTP2 is a huge change for networking and this site has the best explanation I’ve found so far. Check […]
The post Response: http2 explained appeared first on EtherealMind.
Monospaced Fonts and Command Line
Recently I've been on a search for a 'better' font to use in terminals. In an unrelated coincidence, I learned about anti-aliasing, I still don't understand it but it makes a difference.
The post Monospaced Fonts and Command Line appeared first on EtherealMind.
IOS: show tcp vty
On Cisco IOS, this is a very useful command "show tcp vty xx" to show TCP statistics of the VTY session. If you think your terminal is running slow because of packet loss or delay then this command will provide visibility. The other cause is the CPU/Memory running slow if you don't see any errors on the TCP (as you can see below).
The post IOS: show tcp vty appeared first on EtherealMind.
Killer Apps in the Gigabit Age | Pew Research Center’s Internet & American Life Project
Very, very funny quote in the Pew Research Report: How could people benefit from a gigabit network? One expert in this study, David Weinberger, a senior researcher at Harvard’s Berkman Center for Internet & Society, predicted, “There will be full, always-on, 360-degree environmental awareness, a semantic overlay on the real world, and full-presence massive open […]
The post Killer Apps in the Gigabit Age | Pew Research Center’s Internet & American Life Project appeared first on EtherealMind.
Network Dictionary – Invariant
I use the term "invariant" quite regularly when designing networks. It sounds fancy.
The post Network Dictionary – Invariant appeared first on EtherealMind.
If Cisco Could Be Split Up, What Could Go ?
Following the breakups of IBM and HP as they divest the low profit divisions and EMC under a some pressure to disband the Federation, the same question is often raised about Cisco but what could go ?
The post If Cisco Could Be Split Up, What Could Go ? appeared first on EtherealMind.