One of my readers was listening to the Snabb Switch podcast and started wondering “whether it’s possible to leverage and adopt these bleeding-edge technologies without a substantial staff of savvy programmers?”
Short answer: No. Someone has to do the heavy lifting, regardless of whether you have programmers on-site, outsource the work to contractors, or pay vendors to do it.
Read more ...I wanted to take just a moment to share a little gotcha that could take you by surprise. To demonstrate, I have a simple topology with an ASA in the middle. I am inspecting ICMP so ping traffic is stateful and flows properly.
To confirm connectivity, I can ping from csr1000v-2 from csr1000v-1
csr1000v-1#ping 10.0.0.10 repeat 5 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.0.0.10, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 2/6/16 ms
Now for the ASA change that can catch an administrator off guard
asav-1(config)#logging on asav-1(config)#logging trap informational asav-1(config)#logging host inside 1.1.1.1 tcp/1025 //clear the connection just to make sure the next connection will be new asav-1(config)#clear conn
Now the connectivity from csr1000v-1 to csr1000v-2 is broken
csr1000v-1#ping 10.0.0.10 repeat 5 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.0.0.10, timeout is 2 seconds: ..... Success rate is 0 percent (0/5)
So what is wrong? Let’s take one quick look at the logging configuration.
asav-1(config)# show run logging logging enable logging trap informational logging host inside 1.1.1.1 6/1025 asav-1(config)#
Network giant will purchase provider of cloud access security broker technology for $293 million.
You don't have to be a developer to benefit from Agile principles. Creative people can combine Agile concepts with engineering skills to solve problems. On today's episode we're joined by an experienced Agile coach and an IT recruiter to find out how Agile can improve IT infrastructure projects and careers.
The post The Next Level: Agile Networking Part 2 appeared first on Packet Pushers.
It used VeloCloud’s technology.
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When IBM sold off its System x division to Lenovo Group in the fall of 2014, some big supercomputing centers in the United States and Europe that were long-time customers of Big Blue had to stop and think about what their future systems would look like and who would supply them. It was not a foregone conclusion that the Xeon-based portion of IBM’s HPC business would just move over to Lenovo as part of the sale.
Quite the opposite, in fact. Many believed that Lenovo could not hold onto its HPC business, and Hewlett Packard Enterprise and Dell were quick …
Lenovo HPC Bounces Back After IBM Spinoff was written by Timothy Prickett Morgan at The Next Platform.
Hamburg Port Authority is using LoRaWAN.