General – Advice on Numbering Policies in Networking
There are several situations where we need to write some form of policy such as QoS, routing policies used in for example redistribution, filtering and policy-based routing, dot1x and so on. Lately I had to update a policy used by the master controller (MC) in an IWAN design. What are some important things to consider when writing the policy?
The number to start with – If you start with the number one then it won’t be possible to insert anything above this line at a later time. How certain are you that you will never have to put anything before the starting line? My recommendation is to start with a higher number such as 100.
Space between each line – Don’t number your lines 100, 101, 102, 103 and so on. Leave some more space between each line in case you have to insert something later between two lines. A spacing of 10 should be fine for most situations.
Go from most granular to least granular – The policy should go from as granular as possible to the least granular at the end. If you have a statement that is too broad you may catch more than you expected even Continue reading
NodeJS Quick Reference
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Introduction to Next Generation Network Technology: IOT- Internet Of Things
Today I am going to talk about the next generation technology where we are going to connect many other infrastructure and electronic things and controlled and managed by single user or with group of the users. IOT is now the demand of many enterprise, Schools, Hospitals, Factories and many other places. IOT helps ease to work with the help of the latest technology.
IOT is the new technology where we automated the various appliances may be electronic and electric to make this world better. A aspect, within the internet of things, can be someone with a heart monitor implant, a farm animal with a biochip transponder, an car that has built-in sensors to alert the driver whilst tire pressure is low -- or every other natural or guy-made item that can be assigned an IP address and provided with the capacity to switch facts over a network.
The IoT permits objects to be sensed and managed remotely across current network infrastructure, developing opportunities for extra direct integration of the physical global into pc-based totally systems, and resulting in improved efficiency, accuracy and financial advantage.
What is the Basic Purpose of IOT ? How it will helpful for my Business ?
IoT Continue reading
The Use of the Asymmetric routing
Today I am going to talk about the the concept of asymmetric routing and what is the purpose of the asymmetric routing in details. In simple words, Asymmetric routing is used when a packet takes one path to the destination and takes another path when returning to the source. It can be used of manual purposes where we want the sending and the receiving path will be different.
Asymmetric routing is common within most networks i.e. the larger the network, the more likely there is asymmetric routing in the network. Asymmetric routing is an undesirable situation for many network devices including, firewalls, VPNs, and Load Balancer appliances. These devices all rely on seeing every packet to function properly.
Below is the example showing the asymmetric routing where we have two different paths for sending and receiving the packets or you can say traffic flow path are different for sending and receiving the packets. In the below topology, you can see that Site A sending the traffic to internet via Primary Router and then to ASA and then to internet Router while receiving from Internet router then secondary router and then to Site A via MPLS cloud. So this Continue reading
Marvell in Talks to Buy Cavium, Creating $14B Chipmaker, Report Says
It follows reports that Broadcom is planning an unsolicited bid for chipmaker Qualcomm.
Hive Mind, Help Me Out with A10 AXAPI?
Dear Internet,
I am writing some automation code in Go to create client-ssl templates on an A10 load balancer running AXAPI version 2. It’s going as swimmingly as it can with the v2 API, but one area of non-complete API coverage has led to another issue and I’m wondering if anybody has seen the same thing.
Background – Disabling SSLv3
SSL access to VIPs on the A10 load balancer is controlled by means of client-ssl templates which define which certificates should be presented and the ciphers and protocols supported for the incoming connection. In this case therefore, disabling SSLv3 is accomplished in the client-ssl template (unfortunately there is no global switch to turn SSLv3 off by default). A typical template might look like this in the configuration:
slb template client-ssl mytemplate cert my_certificate key my_private_key chain-cert some_chain_cert disable-sslv3 !
As it turns out, all aspects of the client-ssl template are exposed via the API except for “disable-sslv3” which shows neither as a returned property of the template (highly annoying), nor as a property which can be set when creating a template (also annoying). Thus to replicate a template like the one above, I choose to set everything I can using the Continue reading
Broadcom Plans Unsolicited Offer on Qualcomm, Report Says
This follows yesterday's news that Broadcom is relocating its headquarters to the U.S.
Cumulus content roundup: November
Saddle-up and get ready to ride — the Cumulus content roundup is back to take you on a journey through the best in industry news! It’s been a great month for innovation and forward-thinking, here at Cumulus Networks and beyond. From clouds to chassis to microservices, we’ve got the latest in data center networking trends covered. Check out what’s going on, and let us know what you think!
The best from Cumulus:
Private vs. public cloud white paper: Trying to decide which cloud is best for your organization? This white paper weighs the costs and benefits of private, public, and hybrid clouds for you. Read more so you can pick the perfect cloud.
Cumulus Networks inducted into JPMorgan Chase Hall of Innovation: We are humbled and honored to announce that Cumulus Networks has been inducted into the JPMorgan Chase Hall of Innovation. Read this blog to see what it takes to be an innovator.
Technical video and demo: NetQ: This video is perfect for anyone searching for a technical breakdown and demonstration of NetQ’s immense capabilities. Watch here, and see the awesome power of NetQ for yourself.
Choosing your chassis: This blog post provides an up-close Continue reading
Fujitsu and NetApp Partner on Converged Infrastructure
NetApp teamed up with Cisco on converged infrastructure seven years ago.
VMware’s VeloCloud Deal Fills Gap Between the Branch Office and the Edge
Expect more consolidation of SD-WAN and networking vendors to come.
Synopsys Pays $548M to Buy Black Duck, Boost Security Software
Black Duck’s security technology automates the detection of vulnerabilities in open source software.
SDxCentral’s Weekly News Roundup — November 3, 2017
CenturyLink closes on Level 3 for $34B; Microsoft Azure to triple its capacity in China; Telefonica Chile virtualizes its core network with Ericsson.
Arista’s Service Provider Vertical Grows During Q3 2017
The company’s revenues grew 50.8% year-over-year.
I’m Planning to Change the World
Earlier this week, the Internet Society published the booklet Enabling Digital Opportunities in the Middle East. Using research created by the Internet Society, ESCWA, and Wamda, it shows what positive and practical steps can be taken to increase digital opportunity and spread its benefits to all of society. Layal Jebran is one person who’s helping to make a difference.
Layal Jebran is the type of person who can give an interview on the phone while giving directions to her friends while walking through the streets of New York City looking for Thai food. She’s the type of person who can start multiple companies while traveling the world giving motivational speeches and accepting awards. To call the 29-year-old woman, a multitasker would be an understatement. In the startup world, she’s more like a superhero.
“I started as an activist when I was 12 years old,” Jebran said. “And my first startup happened my second year in college.”
That successful startup used the Internet to connect freelance advisers to clients who needed them in the Middle East, but like many entrepreneurs, Jebran didn’t stop there. Lyl Big Designs led to other projects, and she continued developing several different ideas Continue reading
Show 364: ThousandEyes Adds Infrastructure Visibility (Sponsored)
On today s Weekly Show, sponsor ThousandEyes is back to discuss Device Layer, a new feature that uses SNMP to collect data from network devices to boost visibility of network performance. The post Show 364: ThousandEyes Adds Infrastructure Visibility (Sponsored) appeared first on Packet Pushers.
Cisco’s Kaushik on Security: AI is Key, but ‘You Always Want a Human in the Loop’
“You’re not going to have full automation unless you’re 100 percent certain.”