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Company needs "fast and efficient" integration of MRV to stabilize revenues.
The company launched on Kickstarter in 2013.
In IT monitoring, performance and health metrics both serve a purpose.
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Fig 1.1- Sample OSPF topology |
Cloudflare runs 3,588 containers, making up 1,264 apps and services that all need to be able to find and discover each other in order to communicate -- a problem solved with service discovery.
You can use Cloudflare for service discovery. By deploying microservices behind Cloudflare, microservices’ origins are masked, secured from DDoS and L7 exploits and authenticated, and service discovery is natively built in. Cloudflare is also cloud platform agnostic, which means that if you have distributed infrastructure deployed across cloud platforms, you still get a holistic view of your services and the ability to manage your security and authentication policies in one place, independent of where services are actually deployed.
Service locations and metadata are stored in a distributed KV store deployed in all 100+ Cloudflare edge locations (the service registry).
Services register themselves to the service registry when they start up and deregister themselves when they spin down via a POST to Cloudflare’s API. Services provide data in the form of a DNS record, either by giving Cloudflare the address of the service in an A (IPv4) or AAAA (IPv6) record, or by providing more metadata like transport protocol and port in an SRV record.
Local and Distributed vSwitches server the same purpose as physical switches allowing for VM vNICs to be assigned to specific VLANs. In a production environment it is usual to define a local vSwitch on each ESX host for management and backdoor and have distributed vSwitches shared between hosts for VMs.
A cisco vswitch that can be used instead of the default VMware DvS to have a similar environment to that of Cisco physical NXOS switches. The control and packet communication can either be carried over VLANs in Layer2 mode or IP addresses in Layer3 mode. The default and Cisco recommended solution is L3 mode.
I was recently faced with a challenge whereby I needed to inject 30,000 BGP routes into a test environment for a DOCSIS 3.1 POC. Typically I would use IXIA to form the BGP session and inject the routes. However, all of our IXIA testers were in use thus I needed a quick alternative.
I was already aware of BIRD and it’s use as a route server in a number of IXP environments so figured it would be a good fit. The following steps detail how to install BIRD on Ubuntu and how to instantiate a BGP session with a Juniper MX router.
For more info on BIRD check here
For this install I’m using a VM running Ubuntu server 12.04LTS:
lab@ubuntu-server1:~$ lsb_release -aNo LSB modules are available.Distributor ID: UbuntuDescription: Ubuntu 12.04.3 LTSRelease: 12.04Codename: precise
First up we need to enable Linux to support IPv4 forwarding. Two options here; we can either use the sysctl net.ipv4.ip_forward=1 command, although this setting will reset when the server is rebooted. Alternatively we can modify /etc/sysctl.conf to make the change permanent. Edit /etc/sysctl.conf and Continue reading
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Russ White explains why thinking is important.
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Beware of destruction of service (DeOS) attacks.
Risk Management in Submarine Cable System Submarine networks carry over 99% of the world’s Intercontinental electronic communications traffic. There is misconception that Satellites carry data from continent to continent. If we ask anyone in the world, 95% of people give answer as satellites carry international traffic. This is absolutely wrong. The Internet, International […]
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Anycasting IP space has become quite a meme in the networking world in the last few years, with it being used sparsely in the past for UDP based services like DNS. Now it’s being used for TCP based services too,
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