Recent disruptions to two undersea internet cables in the Baltic Sea have yet again...
M
Noction Blog
The latest BGP network optimization and IP flow analysis trends.
When Critical Infrastructure is Vulnerable: Rethinking Network Resilience
Recent disruptions to two undersea internet cables in the Baltic Sea have yet again highlighted a pressing issue for...
From Idle to Established: BGP states, BGP ports and TCP interactions
Understanding BGP states is essential to grasp how BGP operates. Similar to interior gateway protocols (IGPs) like...
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ACK and NACK in Networking
In networking, communication between devices relies on the efficient exchange of data packets. Among the essential...
BGP and asymmetric routing
What is asymmetric routing? Asymmetric routing is a network communication scenario where the forward and reverse paths...
TCP header, TCP header size, TCP checksum mechanism, TCP header structure, options, and format
The Mail Analogy: Understanding TCP Headers and Reliable Delivery The internet seamlessly transfers data, but how does...
Mastering Network Resilience Amidst Africa’s Internet Disruptions: The Advanced Capabilities of Noction IRP
Last week, Africa faced yet again a significant setback in its connectivity infrastructure, with multiple undersea...
BGP flapping, BGP flapping reasons, and the ways to resolve flapping issues
The Border Gateway Protocol (BGP) serves as the lifeblood of the internet, facilitating the exchange of routing...
Understanding BGP Communities
After reading the title of this article you may be thinking of small neighborhoods in the world's most-connected...
Navigating Undersea Cable Disruptions: Seacom’s Red Sea Connectivity Challenge and Strategic Solutions
Over the recent weekend, the digital world faced a stark reminder of its vulnerabilities when Seacom, a crucial link...
Observation Point, Observation Domain ID, and Source ID for NetFlow v9 and IPFIX
Effective network monitoring plays a crucial role in modern network management. To achieve this, protocols like...
NetFlow data and its fields vs packet capture
When it comes to keeping tabs on networks, we’ve got two heavy hitters: NetFlow and packet capture. They are both...
BGP Route Leak prevention and detection via roles in UPDATE and OPEN Messages – RFC 9234
RFC 9234 introduces a novel mechanism that leverages the BGP Role to prevent and detect route leaks. BGP leaks occur...
MPLS TE Deadlock
One of the characteristics of MPLS TE is that an established LSP (label Switched Path) is not torn down in the event...
Geo-blocking at the BGP Level
Geo-blocking at the BGP level is an approach that allows network operators to restrict or control internet traffic by...
Multi-Protocol Label Switching – Transport Profile (MPLS-TP) and Configuration
MPLS-TP, short for Multi-Protocol Label Switching - Transport Profile, is a packet transport technology developed...
Edge Computing in Networking
The growth of data worldwide is expected to continue at an unprecedented rate, and the increase of Internet of Things...
Diverting DDoS traffic using the FlowSpec redirect-to-IP next-hop capability (configuration example)
Distributed denial-of-service (DDoS) attacks can be a major threat to the availability and security of networks. These...
Diverting DDoS traffic using the FlowSpec redirect via VRF capability. Configuration example.
In the previous article, we described different DDoS attacks and their impact on network infrastructure. We focused on...
BGP traffic rerouting, Flowspec, and the DDoS Scrubbing Centers
When it comes to distributed denial-of-service (DDoS) attacks, they are far from a downward trend. Although the...
Optimizing BGP convergence
When there is a change in the reachability of one or more prefixes, BGP needs to do some work to adapt to that change...
Tier 1 Carriers Performance Report: December, 2022
The report offers specific insights into the performance of major Internet Carriers for the month of December, 2022.
BGP and OSPF. How do they interact?
OSPF and BGP: Differences and Interactions When it comes to routing protocols, two of the most popular are OSPF (Open...
Tier 1 Carriers Performance Report: November, 2022
Tier 1 Carriers Performance Report – November, 2022Current report can be used as a trustworthy reference when...