What Network Time Protocol Is and Why You Should Care
If you manage a network and haven’t considered synchronizing your devices with the NTP protocol, this article is for you. Logs, BGP sessions, RADIUS accounting, DHCP leases, syslog, NetFlow, security alerts. Every one of them depends on accurate time. Network Time Protocol, usually called NTP, is the protocol that keeps clocks in sync across IP networks. It runs over UDP port 123.
Ham Radio Topic: What is a “PL”?
PL stands for “Private Line.” It’s a Motorola trade name for what the industry calls CTCSS, which means Continuous Tone-Coded Squelch System. In simple terms, a PL is a low-frequency tone your radio sends along with your voice.
AI-Driven Network Operations: What’s Real and What’s Marketing for ISPs
This is the second installment in my series about the modern Internet Service Provider. The term AIOps gets thrown around liberally, and it’s worth being precise about what machine learning actually does well in network operations versus where it’s still …
Funny Friday: AI at the gates
Stolen from a mailing list. One way to look at AI.
How the Modern ISP Network Is Actually Structured
The three-tier model of core (edge), distribution, and access remains the foundation of ISP network architecture, though the distinctions between these layers have become less defined. A current assessment requires analysis beyond standard diagrams.
The Modern ISP Network: Architecture, Challenges, and What’s Next for Internet Service Provider Infrastructure
You’re managing a network that deals with more traffic than ever before. Your subscribers stream 4K video, work from home using cloud-based tools, and rely on applications where even a slight delay matters. The systems you have now are working, but the reality is that the network design you use today won’t be enough for the next five years.
Autonomous System Provider Authorization (ASPA)
Autonomous System Provider Authorization (ASPA) addresses a longstanding gap in Border Gateway Protocol (BGP) security.
Annatomy of a DDoS attack. When ports fill up
Identifying a DDoS attack requires an understanding of normal network behavior. In the left portion of the graph,
Network related Valentine
Roses are red. Packets are neat. I’d reroute the whole internet Just to land at your IP. You’re my default gateway When my heart drops a route. No packet loss here Just love, end-to-end, absolute. If life were BGP And …
AI Traffic and FD-IX. An exchange perspective
AI traffic does not behave like normal internet traffic. Traditional transit models were built for north–south traffic. That means users pulling content from somewhere else. A house streams Netflix. A business checks Microsoft 365. Traffic leaves the local network, hits a transit provider, and finds its way to a remote. That model works because most flows are bursty and asymmetric. Download heavy. Upload light. Predictable
How Internet Service Providers can use AI – the 10,000 foot level
How Internet Service Providers can use AI – the 10,000 foot level
Stuck SFP modules in switches
If you have been around the Data Center world working on switches, you will have run into this at one point. A stuck SFP. If you have ran into this, the following article by Edge Optical Solutions will be of …