The Realpolitik of technical pre-sales
I’m the technical guy in the room, but yes, you could call me a salesperson if you were feeling vicious. I work with many vendors and my job in Technical Pre-Sales is to pitch their solutions to the Enterprise network administrator. Some vendors have amazing products, some of them not so much. Walking the line […]
Author information
The post The Realpolitik of technical pre-sales appeared first on Packet Pushers Podcast and was written by Glen Kemp.
7 CCIE Strategy Mistakes – What I will do differently next time!
Download the PDF here Although at the time of writing I have not yet passed the CCIE Lab Exam in Routing & Switching, but I wanted to write down my 7 CCIE Strategy Mistakes that I made on my journey so far. I have come a long way and have learnt a lot. My journey […]
The post 7 CCIE Strategy Mistakes – What I will do differently next time! appeared first on Roger Perkin - Networking Articles.
Rapid Spanning Tree Synchronization – Keeping It Classless Labs
This is a specific video on Rapid Spanning Tree Synchronization. See my full writeup on RSTP in general. Forgive the low(er) quality of this particular video, it was recorded at an hour in the morning that frankly should not exist.[CCIE] Spanning-Tree Part 2 – RSTP
This post picks up where the previous left off. Again, a CCNP-level knowledge of STP is recommended. So…Spanning Tree didn’t converge quickly enough for some people, and enabling PortFast everywhere kind of defeats the purpose, so 802.1w Rapid Spanning Tree was born. RSTP in essence puts into place some additional features to speed up STP reconvergence. Old-school 802.1D meant that you had to wait at least 30 seconds to get a port from blocking to forwarding, and this means that recovering from a failure takes at least that much time (sometimes more depending on other factors).Rapid Spanning Tree Synchronization – Keeping It Classless Labs
This is a specific video on Rapid Spanning Tree Synchronization. See my full writeup on RSTP in general. Forgive the low(er) quality of this particular video, it was recorded at an hour in the morning that frankly should not exist.[CCIE] Spanning-Tree Part 2 – RSTP
This post picks up where the previous left off. Again, a CCNP-level knowledge of STP is recommended. So…Spanning Tree didn’t converge quickly enough for some people, and enabling PortFast everywhere kind of defeats the purpose, so 802.1w Rapid Spanning Tree was born. RSTP in essence puts into place some additional features to speed up STP reconvergence. Old-school 802.1D meant that you had to wait at least 30 seconds to get a port from blocking to forwarding, and this means that recovering from a failure takes at least that much time (sometimes more depending on other factors).Rapid Spanning Tree Synchronization – Keeping It Classless Labs
This is a specific video on Rapid Spanning Tree Synchronization. See my full writeup on RSTP in general. Forgive the low(er) quality of this particular video, it was recorded at an hour in the morning that frankly should not exist.[CCIE] Spanning-Tree Part 2 – RSTP
This post picks up where the previous left off. Again, a CCNP-level knowledge of STP is recommended. So…Spanning Tree didn’t converge quickly enough for some people, and enabling PortFast everywhere kind of defeats the purpose, so 802.1w Rapid Spanning Tree was born. RSTP in essence puts into place some additional features to speed up STP reconvergence. Old-school 802.1D meant that you had to wait at least 30 seconds to get a port from blocking to forwarding, and this means that recovering from a failure takes at least that much time (sometimes more depending on other factors).Masterclass – Tcpdump – Parameters
This Masterclass article series aimes to provide in-depth technical information on the installation, usage and operation of the classic and supremely popular tcpdump network traffic analysis program including alternatives, running tcpdump as a process, building expressions, understanding output and more. I’ve covered the Basics previously, will cover Parameters here, then filter Expressions and finally Interpreting Output. […]
Author information
The post Masterclass – Tcpdump – Parameters appeared first on Packet Pushers Podcast and was written by Steven Iveson.
PQ Show 26 – Cisco Live Network, IPv6 and Hugs All Round – Sponsored
Guests Patrick Warichet Alain Fiocco @alainfiocco Andrew Yourtchenko @ayourtch Kumar Reddy @kumarreddy Show Notes You can follow the Cisco IPv6 Lab Team on Twitter at @cisco6lab “Happy Eyeballs” – RFC6555 – Happy Eyeballs: Success with Dual-Stack Hosts – http://tools.ietf.org/html/rfc6555 Test your IPv6 http://test-ipv6.com/ IPvFoo – https://code.google.com/p/ipvfoo/ 6lab.cisco.com/stats Sessions on Cisco Live 365 from Orlando, 2013. […]
Author information
The post PQ Show 26 – Cisco Live Network, IPv6 and Hugs All Round – Sponsored appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Show 151 – Defining Software Defined Whatever
The hosts of the Speaking in Tech podcast join the Packet Pushers to discuss “not networking” just ahead of the Cisco Live conference. CLUS roving reporter Chris Wahl @chriswahl takes part in the melee. Dropping insults on ITIL and ITSM once again. Defining Software Defined Whatever because “My Other Software Defined is Your Mom” Software […]
Author information
The post Show 151 – Defining Software Defined Whatever appeared first on Packet Pushers Podcast and was written by Greg Ferro.
Masterclass – Tcpdump – Basics
This Masterclass article series aimes to provide in-depth technical information on the installation, usage and operation of the classic and supremely popular tcpdump network traffic analysis program including alternatives, running tcpdump as a process, building expressions, understanding output and more. I’ll cover the Basics here and move on to Parameters, then filter Expressions and finally Interpreting […]
Author information
The post Masterclass – Tcpdump – Basics appeared first on Packet Pushers Podcast and was written by Steven Iveson.
Speaker for the Dead – Telnet
The idea of this article series is for me to play the part of a ‘Speaker for the Dead’ for technology that has or is becoming ‘end of life’ or legacy and/or irrelevant (or which should be). In this article, I’ll cover Telnet; the good, the bad, the ugly, the full (but brief) and honest […]
Author information
The post Speaker for the Dead – Telnet appeared first on Packet Pushers Podcast and was written by Steven Iveson.
Spanning Tree Nerd Knobs – Keeping It Classless Labs
This is a video on some of the “nerd knobs” that we get to play with in a traditional spanning tree environment. I have done a full writeup on the topic that goes along with this video - you can view this video on that page as well.[CCIE] Spanning-Tree Part 1 – Nerd Knobs
I wrote this post not only to put out some information on one of the least-understood facets of networking (especially in data center, as most technology today is aimed at making STP irrelevant) but also to help get something on paper for me, seeing as I am going down the CCIE path full force now, and this has always been a weak area of mine. This post will assume you have CCNP-level knowledge about Spanning Tree Protocol (STP).Spanning Tree Nerd Knobs – Keeping It Classless Labs
This is a video on some of the “nerd knobs” that we get to play with in a traditional spanning tree environment. I have done a full writeup on the topic that goes along with this video - you can view this video on that page as well.[CCIE] Spanning-Tree Part 1 – Nerd Knobs
I wrote this post not only to put out some information on one of the least-understood facets of networking (especially in data center, as most technology today is aimed at making STP irrelevant) but also to help get something on paper for me, seeing as I am going down the CCIE path full force now, and this has always been a weak area of mine. This post will assume you have CCNP-level knowledge about Spanning Tree Protocol (STP).Spanning Tree Nerd Knobs – Keeping It Classless Labs
This is a video on some of the “nerd knobs” that we get to play with in a traditional spanning tree environment. I have done a full writeup on the topic that goes along with this video - you can view this video on that page as well.[CCIE] Spanning-Tree Part 1 – Nerd Knobs
I wrote this post not only to put out some information on one of the least-understood facets of networking (especially in data center, as most technology today is aimed at making STP irrelevant) but also to help get something on paper for me, seeing as I am going down the CCIE path full force now, and this has always been a weak area of mine. This post will assume you have CCNP-level knowledge about Spanning Tree Protocol (STP).All Aboard the Application Train!
It’s been an interesting week so far… and it’s only Wednesday. In just a little over a day and a half, we’ve had hundreds of people stop by our booth at Cisco Live! and I wanted to share a few observations from those interactions:
- A significant number of people still do not know or understand much about SDN. This isn’t surprising and further underscores the disservice vendors have done at creating confusion that I wrote about a couple of weeks ago.
- When you talk about an application-centric approach to networking and network service automation, people get interested very fast, even when they are not building or using a cloud.
- Everyone is asking for examples of real use cases and deployments to help them determine which vendors they should engage/invest their time.
I suppose I shouldn’t be too surprised that networkers aren’t that familiar with software. Given that Cisco is talking a little more about software and software-defined networking these days, that’ll probably change by this time next year. In fact, Cisco spent much of Wednesday morning outlining its “vision” for application-centric infrastructure. From my perspective it’s a great thing to have Cisco promote the concept we’ve been pushing for a Continue reading