iPexpert’s Newest “CCIE Wall of Fame” Additions 12/11/2015
Please join us in congratulating the following iPexpert students who have passed their CCIE lab!
Stuff The Internet Says On Scalability For December 11th, 2015
Hey, it's HighScalability time:
- 100 million: John Henry as played by a conventional computer loses to a quantum computer; 400,000: cores in PayPal's OpenStack deployment; 10TB: max size of Google Cloud SQL database; 9%: Kickstarter projects that don't deliver; $2.3 trillion: worth of The Forbes 400 members; billions: worth of Spanish treasure ship;
- Quotable Quotes:
- Pandalicious: I actually expect that down the road most large open source projects will start distributing a standardized build environment via docker containers.
- @glasnt: "Optimise for speed flexibility & evolution" "Whoever is iterating faster has a huge advantage" - @adrianco #yow15
- @erikbryn: LIDAR goes from $75K to $500, leaves Moore's Law in the Dust
- Henry Miller: One has to believe wholeheartedly in what one is doing, realize that it is the best one can do at the moment—forego perfection now and always!—and accept the consequences which giving birth entails.
- @jedws: "uber is way more reliable on Saturday and Sunday because there are no engineers working on the.system" #yow15
- Continue reading
The Missing Tier: SDN MANO for Multiservice Networks
Intelligent provisioning of SDN network services cries out for an analytics-based MANO layer.
Show 267: Juniper’s Sky Advanced Threat Prevention (Sponsored)
The Packet Pushers talk to Juniper Networks about Sky Advanced Threat Prevention (ATP), a cloud-based anti-malware service integrated with SRX Gateways. It employs multiple technologies to identify risks and provide a higher degree of accuracy in threat prevention.
The post Show 267: Juniper’s Sky Advanced Threat Prevention (Sponsored) appeared first on Packet Pushers.
Show 267: Juniper’s Sky Advanced Threat Prevention (Sponsored)
The Packet Pushers talk to Juniper Networks about Sky Advanced Threat Prevention (ATP), a cloud-based anti-malware service integrated with SRX Gateways. It employs multiple technologies to identify risks and provide a higher degree of accuracy in threat prevention.
The post Show 267: Juniper’s Sky Advanced Threat Prevention (Sponsored) appeared first on Packet Pushers.
Networking Challenges For 2016 And Beyond
Network administrators are bracing for the proliferation of IoT devices, escalating security threats, and tight budgets ahead.Managing Performance In SDN And NFV Environments
Gauging service quality in an SDN/NFV network requires looking at every layer that makes up your application.Transforming ideas into light bulbs – LiFi
About 4 years ago, Harald Haas, a physicist and professor of mobile communications at the University of Edinburgh, was the first to coin the term Li-Fi, at a TED Talk during TEDGlobal 2011. Since then, millions of bits about this technology roamed the Internet, and many companies already started implementing it.
Who’s doing this already?
The history begins with a company named Velmenni, which has produced a light bulb that works with Li-Fi technology on a small scale. They are not the first to prove the technology works, nor the first to conduct a real-world experiment, but here’s their Jugnu Lighbulb demo.
Philips has developed a VLC (Visible Light Communication) system for shoppers at stores. People have to download an app on their smartphone and then it will interact with the LEDs in the store. The LEDs can pinpoint their location in the store and give them corresponding coupons and information based on which aisle they are on and what they are looking at.
ByteLight has developed a system similar to Philips’ lighting network, making LEDs “talk” to any smartphone and tablet with a camera and/or Bluetooth Smart technology that is “opened to listen”.
The first VLC smartphone prototype was Continue reading
CPLANE Networks on Software Gone Wild
When I wrote a blog post explaining the difference between centralized control and centralized control plane, John Casey, CEO of CPLANE Networks wrote a comment saying “yeah, that’s exactly what we’re doing.”
It took us a while to get the stars aligned, but finally we managed to sit down and chat about what they’re doing, resulting in Episode 46 of Software Gone Wild.
Custom metrics with Cumulus Linux
Host sFlow version 1.28.3 adds support for Custom Metrics. This article demonstrates how the extensive set of standard sFlow measurements can be augmented using custom metrics.
Recent releases of Cumulus Linux simplify the task by making machine readable JSON a supported output in command line tools. For example, the cl-bgp tool can be used to dump BGP summary statistics:
cumulus@leaf1$ sudo cl-bgp summary show json
{ "router-id": "192.168.0.80", "as": 65080, "table-version": 5, "rib-count": 9, "rib-memory": 1080, "peer-count": 2, "peer-memory": 34240, "peer-group-count": 1, "peer-group-memory": 56, "peers": { "swp1": { "remote-as": 65082, "version": 4, "msgrcvd": 52082, "msgsent": 52084, "table-version": 0, "outq": 0, "inq": 0, "uptime": "05w1d04h", "prefix-received-count": 2, "prefix-advertised-count": 5, "state": "Established", "id-type": "interface" }, "swp2": { "remote-as": 65083, "version": 4, "msgrcvd": 52082, "msgsent": 52083, "table-version": 0, "outq": 0, "inq": 0, "uptime": "05w1d04h", "prefix-received-count": 2, "prefix-advertised-count": 5, "state": "Established", "id-type": "interface" } }, Continue reading
I use SNMP SETs and I’m not afraid to admit it.
Do you remember back in CCNA school when we learned all sorts of great things that we very rarely followed. One of the favourites was that we are supposed to put meaningful descriptions on all of our interfaces so we know what the other side is connected to.
How many people actually follow that advice?
Yeah, I never do it either. There’s always just too many things on the list that need to get done and it seems like that extra 5 seconds it would take me to update the description to the interface just doesn’t seem like it’s worth the effort. Of course, then I later check the port and end up knocking out my XYZ services and cause myself an outage.
This is where a little python and a decent NMS can help to solve a problem.
Understanding ifIndex
Before we get into the code. We need to understand a little about ifIndex values and how they relate to the physical interfaces of the devices. If you’re REALLY interested, you can do some reading in RFC 2863. But in a nutshell, each interface on a device, whether physical or logical has a specific numeric value assigned to it Continue reading