SDxCentral Weekly News Roundup — February 3, 2017
Netscout joins OPNFV; Cato launches a cloud-based SD-WAN service.
Stuff The Internet Says On Scalability For February 3rd, 2017
Hey, it's HighScalability time:
- 100 billion: words needed to train large networks; 73,653: hard drives at Backblaze; 300 GB hour: raw 4k footage; 1993: server running without rebooting; 64%: of money bet is on the Patriots; 950,000: insect species; 374,000: people employed by solar energy; 10: SpaceX launched Iridium Next satellites; $1 billion: Pokémon Go revenue; 1.2 Billion: daily active Facebook users; $7.17 billion: Apple service revenue; 45%: invest in private cloud this year;
- Quoteable Quotes:
- @kevinmarks: #msvsummit @varungyan: Google's scale is about 10^10 RPCs per second in our microservices
-
language: "Order and chaos are not a properties of things, but relations of an observer to something observed - the ability for an observer to distinguish or specify pattern."
- general_ai: Doing anything large on a machine without CUDA is a fool's errand these days. Get a GTX1080 or if you're not budget constrained, get a Pascal-based Titan. I work in this field, and I would not be able to do Continue reading
Worth Reading: Sorting through SD-WAN
The post Worth Reading: Sorting through SD-WAN appeared first on 'net work.
When Will AWS Move Up The Stack To Real Applications?
Imagine how little fun online retailer Amazon would be having on its quarterly calls if it had not launched its Amazon Web Services cloud almost eleven years ago. The very premise of Amazon was to eliminate brick and mortar retailing, cutting out capital expenses as much as possible, to deliver books and then myriad other things to our doorsteps.
How ironic is it that Amazon pivoted to one of the most capital intensive businesses on earth – running datacenters – and has been able to extract predictable and sizable profits from it to prop up its other businesses and strengthen …
When Will AWS Move Up The Stack To Real Applications? was written by Timothy Prickett Morgan at The Next Platform.
Show 325 – Next-gen Load Balancing with Avi Networks (Sponsored)
Sponsor Avi Networks joins the Packet Pushers to discuss load balancing in the modern world. The post Show 325 – Next-gen Load Balancing with Avi Networks (Sponsored) appeared first on Packet Pushers.
Python – Argparse Part II
In my previous post on Argparse I had some issues with validating values and printing help output for values that are out of range. I got some great suggestions from my smart colleagues Mikkel Troest and Patrick Ogenstad who are far more advanced in their Python knowledge.
We started out with the following code in the last post:
#!/usr/bin/env python
# import Argparse
import argparse
# import sys
import sys
# create main function
def main():
# create ArgumentParser object
parser = argparse.ArgumentParser(description="Daniel's ping script v0.1")
# add arguments
parser.add_argument("-version", "--version", action="version", version="%(prog)s 0.1")
parser.add_argument("-c", "--c" , help="Number of packets", action="store", type=int, choices=xrange(1, 1000), metavar=("(1-1000)"))
parser.add_argument("-s", "--s" , help="packetsize in bytes", action="store", type=int, choices=xrange(56, 1500), metavar=("(56-1500)"))
parser.add_argument("-t", "--t" , help="ttl for icmp packets", action="store", type=int, choices=xrange(1, 255), metavar=("(1-255)"))
parser.add_argument("-w", "--w" , help="timeout in seconds", action="store", type=int, choices=xrange(1, 10), metavar=("(1-10)"))
parser.add_argument("-ip", "--ip", help="ip address", action="store", required=True)
# parse command-line arguments
parser.parse_args()
if __name__ == "__main__" and len(sys.argv) < 2:
print "use the -h flag for help on this script"
else:
main()
First let’s clean up this a bit since the length of the lines are more than 80 characters Continue reading