If you've spent time supporting AI infrastructure, whether that's a GPU training cluster, a fleet of inference nodes, or a multi-tenant model serving platform, you've probably noticed something: the network telemetry tools that served you well in a...
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...
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...
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...
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...
Our previous article discusses flow-based SSH compromise detection. A force attack against SSH hosts consists of scan, brute-force and compromise phases that...
Secure Shell (SSH) provides a secure channel over an unsecured network in a client-server model. SSH is typically used to log into a remote machine and...
The Internet we know nowadays cannot properly operate without using the Domain Name System (DNS). DNS syncs up domain names with IP addresses so humans can...
Simple Network Management Protocol (SNMP) is a well-known standardized application layer protocol, originally developed for network management but mostly used...
Duplication of NetFlow occurs when the NetFlow records about the same flow are exported multiple times to a NetFlow collector. In turn, the volume of network...
In our previous article we have discussed the alternative way to get flow statistics using a NetFlow generator. One of the fundamental features of the...
What is a NetFlow Generator? A NetFlow generator is a dedicated network appliance or software running on a PC and listening on a single or multiple network...
This is the second part of the post dedicated to NetFlow configuration. In the first part, we’ve discussed the configuration of Flexible NetFlow on Cisco IOS...