Dinesh Dutt was the guest speaker in the second Leaf-and-Spine Fabric Design session. After I explained how you can use ARP/ND information to build a layer-3-only data center fabric that still support IP address mobility Dinesh described the details of Cumulus Linux redistribute ARP functionality and demoed how it works in a live data center.
It will incorporate the technology with its Contrail platform.
Many operators conduct technology trials in hope that the results will contribute to the 5G standard.
This pure-play security company has been around for 28 years.
This is a second technical post related to segment-routing, I did a basic introduction to this technology on Juniper MX here;
Segment Routing on JUNOS – The basics
For this post I’m looking at something a bit more advanced and fun – performing Segment-routing traffic-engineering using an SDN controller, in this case OpenDaylight Beryllium – an open source SDN controller with some very powerful functionality.
This post will use Cisco ASR9kV virtual routers running on a Cisco UCS chassis, mostly because Cisco currently have the leading-edge support for Segment-routing at this time, Juniper seem to be lagging behind a bit on that front!
Lets check out the topology;
It’s a pretty simple scenario – all of the routers in the topology are configured in the following way;
The first thing to look at here is BGP-LS “BGP Link-state” which is an extension of BGP that allows IGP information (OSPF/ISIS) to be injected into BGP, this falls conveniently into the world of centralised path computation – where we can use a controller of some sort to look at Continue reading
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Although vendor-written, this contributed piece does not advocate a position that is particular to the author’s employer and has been edited and approved by Network World editors.
With cybersecurity threats on the rise, companies are increasingly taking advantage of cybersecurity insurance. And while cyber insurance can be worth it, it’ll cost you. Last year, U.S. insurers earned $1B in cyber premiums. You can minimize your premiums by showing your insurance company you’re actively mitigating cyber risks, which is a win-win: lower your risk and secure a more cost-effective insurance plan.
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Having once granted the right to vote on equal terms, the State may not, by later arbitrary and disparate treatment, value one person's vote over that of another.Lessig cites the principle of "one person one vote", but in a new and novel way. He applies in an arbitrary way that devalues some of the votes that have already been cast. Specifically, he claims that votes cast for state electors should now be re-valued as direct votes for a candidate.