Latest articles by Phil Hippensteel
Byte-Sized Lesson In IP/AV: Pointer Fields
After glancing at Figure 1, does it make you wonder how a data packet makes its way from the network to the correct application that will process the data it contains?
Byte Sized Lesson in IP/AV: IP Multicasting
We’ve heard a good deal about the amount of bandwidth that video demands from the network.
Byte-Sized Lesson in IP: Routers & Routing
In the last Byte-Sized Lesson, we looked at Layer 2 switches.
Byte-Sized Lesson: Layer 2 Switches & VLANs
Probably the most common network interconnection device in industry networks are layer 2 switches.
Byte-Sized Lessons for Tech Managers: DHCP
When a computer powers up, isn’t DHCP the protocol that a computer uses to get its IP address? Well, yes. But DHCP does much more than assign an address.
It’s Time to Reconsider ARP
ARP (Address Resolution Protocol) is one of the least discussed protocols in the TCP/IP suite.
Why is a Traditional RF Manufacturer Embracing IP?
Carlisle, PA-based Z-Band has been recognized as the manufacturer of a video over twisted pair solution that is unique in the AV industry.
Byte-Sized Lessons in IP: Ethernet Addressing
Ethernet has become the de facto standard for the infrastructure of the world’s local area networks (LANs).
Byte-Sized Lessons in IP: Layered Communications
The concept of layered communications is at the foundation of all IP communications, including audio and video over IP.
Bufferbloat is a New Threat to Web Traffic, Including AV
Sometimes it seems strange that a problem can develop and go undetected, even under watchful eyes. That’s exactly what has happened with the phenomenon called bufferbloat.
Ask Professor Phil: Understanding Content Delivery Networks
Isaiah, I’m going to assume that the videos are retrieved using a browser or similar piece of software, because that is the most common method.
Ask Professor Phil: Streaming Video Snafu
Paul, I suggest that the difference is caused by one of these: the operating system and the particular version on your server, and your client or the version of the browser being used in the client.
Ask Professor Phil: IPTV implementation challenges
Dear Professor Phil, After a bit of a struggle, we’ve managed to implement IPTV.
Ask Professor Phil: Defining Delay Skew
Dear Professor Phil, What is delay skew? Does it matter?
Ask Professor Phil: Is a VLAN always a separate subnet?
Dear Professor Phil, We’re thinking of purchasing an IP video encoder; it streams RTSP.
The Influence of IT on AV: A Tech Manager Primer
We’ve all heard a lot about it already: How IT is influencing the AV industry.
Ask Professor Phil: Does RTP Matter for Network Video?
Dear Professor Phil, We use IPTV in our school to deliver video obtained from feed provided by our cable company.
Ask Professor Phil: My network is over-run with video traffic.
Dear Professor Phil, We have been very surprised to learn that one-third of all traffic on our university network is video.
Ask Professor Phil: AV Standards vs Proprietary Approaches?
Dear Professor Phil, I’ve always contended that standards in audio and video communications are extremely important.
