In traditional methods for DDoS mitigation, such as RTBH (remotely triggered blackhole), a BGP route is injected, advertising the IP address of the server under attack with a special community (666). This special community on the border routers sets the next hop to a...
[vc_row][vc_column][vc_column_text]The Tier 1 Carriers Performance Monitoring Service has just been released by Noction. It is available to the general public at no cost. Real-time dashboards contain visualizations that are automatically updated with the most...
Network visibility is crucial because we cannot manage and secure what we cannot see. NetFlow plays a critical role in traffic visibility by helping network professionals to characterize network traffic and determine where it flows. It provides information that is...
On Monday, June 24th a major BGP leak occurred. A big part of the internet was sent down a black hole after a major ISP accepted a network misconfiguration from a downstream ASN of a Noction user. This caused major outages at Cloudflare, Amazon, Facebook, and a number...
Border Gateway Protocol (BGP) is a core routing protocol used by most of the Internet Service Providers (ISPs). BGP’s role is to exchange routing and reachability information between autonomous systems (ASes) on the Internet. An AS can be an ISP, a university or the...
This article gives some insights on how to set up a network traffic analysis and alerting system based on NetFlow. NetFlow is an advanced and widely used technology that provides detailed information to help you analyze traffic for any abnormalities. It allows...
Software-Defined Networking (SDN) in a Wide Area Network (WAN) – SD-WAN is a technology that simplifies management of WAN by decoupling control plane from the data plane. SD-WAN offers the ability to combine multiple types of connections such as 4G/LTE, or MPLS,...
On August 8th, 2014 some ISPs experienced a phenomenon called the “512k Day”. The global BGP routing table, which consists of the global Internet routes and reflects how ISPs reach destination IPs, stretched to more than 512,000 records. Routers with the high-speed...
Bring Your Own Device (BYOD) is a practice that allows users to bring their personal devices such as tablets or smartphones to the workplace and use them to access the company’s network. BYOD’s advocates claim that the BYOD trend movement helps to improve...
So far, we have discussed NetFlow configuration for network devices from various vendors such as Cisco, Juniper, Huawei, VyOS. We have collected layer 3 and 4 traffic information such as source/destination IP addresses, UDP/TCP protocol and source/destination ports....
