Well folks, it has finally been announced! Cisco has retired the CCNA Voice and CCNA Video certifications in favor of a new, all-encompassing CCNA Collaboration certification. It will be comprised of two separate exams—one with a focus on Unified Communications solutions and one emphasizing the implementation and troubleshooting of video infrastructures.
The first exam is called “Implementing Cisco Collaboration Devices” and corresponds to exam number 210-060 CICD. Topics to note within this exam will be call signaling and media flows, VoIP quality implications, user account creation and modification, calling privileges, IM and Presence, RTMT and CDR/CMR-based reporting, and typical end user support scenarios. The focus of this exam is now on becoming a well-rounded engineer, with knowledge in more than just CUCM. For more information, visit this link here.
The second exam is called “Implementing Cisco Video Network Devices” and corresponds to exam number 210-065 CIVND. Topics on this exam that should carry great importance will be streaming video, media convergence, desktop and immersive systems, troubleshooting methodologies, media quality, and multi-point control units. With the focus here being solely on video and its integration with voice networks, candidates for the exam will gain a breadth of knowledge during the studying Continue reading
OSPF as a PE-CE routing protocol can be used in the MPLS Layer 3 VPN design between customer and the service provider. If the customer receives an MPLS Layer 3 VPN service , routing protocol is enabled between the customers and the Service Providers. Don’t forget that static routing is a routing protocol ! This VPN… Read More »
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At CloudFlare, making web sites faster and safer at scale is always a driving force for innovation. We introduced “Universal SSL” to dramatically increase the size of the encrypted web. In order for that to happen we knew we needed to efficiently handle large volumes of HTTPS traffic, and give end users the fastest possible performance.
CC BY 2.0 image by ecos systems
In this article, I’ll explain how we added speed to Universal SSL with session resumptions across multiple hosts, and explain the design decisions we made in this process. Currently, we use two standardized session resumption mechanisms that require two different data sharing designs: Session IDs RFC 5246, and Session Tickets RFC 5077.
Resuming an encrypted session through a session ID means that the server keeps track of recent negotiated sessions using unique session IDs. This is done so that when a client reconnects to a server with a session ID, the server can quickly look up the session keys and resume the encrypted communication.
At each of CloudFlare’s PoPs (Point of Presence) there are multiple hosts handling HTTPS traffic. When the client attempts to resume a TLS connection with a Continue reading
When I was at HP Discover last December, I noticed a few people running around wearing Cumulus Networks shirts. That had me a bit curious, as Cumulus isn’t usually on the best of terms with traditional networking vendors unless they have a partnership. After some digging, I found out that HP would be announcing a “britebox” branded whitebox switch soon running Cumulus Linux. I wrote a post vaguely hinting about this in as much detail as I dared leak out.
No surprise that HP has formally announced their partnership with Cumulus. This is a great win for HP in the long run, as it gives customers the option to work with an up-and-coming network operating system (NOS) along side HP support and hardware. Note that the article mentions a hardware manufacturing deal with Accton, but I wouldn’t at all be surprised to learn that Accton had been making a large portion of their switching line already. Just a different sticker on this box.
The real winner here is Cumulus. They have partnered with Dell and HP to bring their NOS to some very popular traditional network vendor hardware. Given that they continue to push Cumulus Linux Continue reading
Whenever I write about the crazy things vendors are trying to sell us, and the kludges we have to live with, I keep wondering, “Is it just me, or is the whole industry really as ridiculous as it seems?” It’s so nice to see someone else coming to the same conclusions, like Mark Burgess (the author of CFEngine and the Promise Theory) did in a lengthy essay on whether SDN makes sense.
Read more ...phpipam has support for creating custom fields to be used in address, subnets, vlans, devices and users tables. This is useful when you need to add some custom data to your tables. You can set your custom fields under Administration > Custom fields.
It supports following types of data and it representations:
Besides setting field type there are some other variables that can be set for each: