The Packet Pushers stop by the IPv6 Buzz studios for a follow-up conversation with Tom Coffeen and Ed Horley on IPv6 address planning, including why nibble boundaries are so useful for subnetting, use cases for PI and PA address spaces, and tool recommendations.
The post IPv6 Buzz 024: Enterprise IPv6 Address Planning Revisited appeared first on Packet Pushers.
To catch you up to speed quickly, I have a six-part blog series that will show you how to set up the CL 3.7.5 campus design feature: Multi-Domain Authentication.
We’ll cover it all: Wired 802.1X Authentication using Aruba ClearPass, Wired MAC Authentication using Aruba ClearPass, Multi-Domain Authentication using Aruba ClearPass, Wired 802.1x using Cisco ISE, Wired MAC Authentication using Cisco ISE, and Multi-Domain Authentication using Cisco ISE.
In the last blog, I showed you how to enable wired 802.1X authentication in Cumulus Linux 3.7.5+ using Aruba ClearPass 6.7.x. In this second guide, I’ll be sharing is how to enable wired MAC Authentication in Cumulus Linux 3.7.5+ using Aruba ClearPass 6.7.x.
Keep in mind that this step-by-step guide assumes that you have already performed an initial setup of Aruba ClearPass.
1. Add the Cumulus Switch to ClearPass
First, we are going to add this specific Cumulus Network switch to ClearPass. Go to the following:
Configuration > Network > Devices. Click “+Add” in the top right-hand corner
Fill in the appropriate IP Address, Description, and Shared Secrets. For simplicity sake, set the “Vendor Name” to Continue reading
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This is a guest blog post by Dave Crown, Lead Data Center Engineer at the State of Delaware. He can be found automating things when he's not in meetings or fighting technical debt.
In a recent blog post, Ivan postulated “You’d execute a REST API call. Any one of those calls might fail. Now what? ... You’ll have absolutely no help from the orchestration system because REST API is not transactional so there’s no rollback.” Well, that depends on the orchestration system in use.
The promise of controller-based solutions (ACI, NSX, etc.) is that your unicorn powered network controller should be an all seeing, all knowing platform managing your network. We all have hopefully learned about the importance of backups very early on our careers. Backup and, more importantly, restore should be table stakes; a fundamental feature of any network device, let alone a networking system managed by a controller imbued with magical powers (if the vendor is to be believed).
Read more ...The Internet Society Elections Committee is pleased to announce the final results of the 2019 elections for the Internet Society Board of Trustees. The voting concluded on 8 April. The challenge period (for appeals) was opened on 9 April and closed on 17 April.
There were no challenges filed. Therefore the election results stand:
The term of office for all 4 of these Trustees will be 3 years, commencing with the 2019 Annual General Meeting of the Internet Society, 26-28 July.
The Elections Committee congratulates all of the new and renewing Trustees and expresses its gratitude once more to all the candidates and to everyone who participated in the process this year
The post 2019 Internet Society Board of Trustees Final Election Results & IETF Appointment appeared first on Internet Society.
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Nineteen vendors took part in tests that placed a strong focus on synchronization for 5G and the 5G...
If you had to pick two really hot topics in the networking space right now, you’d be hard-pressed to find two more discussed than SD-WAN and microsegmentation. SD-WAN is the former “king of the hill” in the network engineering. I can remember having more conversations about SD-WAN in the last couple of years than anything else. But as the SD-WAN market has started to consolidate and iterate, a new challenger has arrived. Microsegmentation is the word of the day.
However, I think that SD-WAN and microsegmentation are quickly heading toward a merger of ideas and solutions. There are a lot of commonalities between the two technologies that make a lot of sense running together.
SD-WAN isn’t just about packet switching and routing any longer. That’s because networking people have quickly learned that packet-by-packet processing of traffic is inefficient. All of our older network analysis devices could only see things one IP packet at a time. But the new wave of devices think in terms of flows. They can analyze a stream of packets to figure out what’s going on. And what generates those flows?
Applications.
The key to the new wave of SD-WAN technology isn’t some kind of magic method Continue reading