Kentik

JUNE 7, 2023

Kentik Cloud users can now access the new Kentik Map for Google Cloud to automatically visualize detailed Google Cloud and hybrid cloud infrastructure topology. In addition, the map visualizes Dedicated Interconnect attachments, VM interfaces, and VPN gateways with their associated on-prem and cloud routers.

Cloud 97

Cloud Gateway Port IP Address 97

Kentik

MAY 9, 2017

But believe it or not, many of these services have been operating for 25 years now — since the advent of the commercial Internet — without the IP equivalent of package tracking. We can’t yet see where (geographically or topologically) the traffic from XYZ is entering the network, and we also can’t see where it egresses to the next hop.

Internet 40

Internet Routers Network Networking 40

The Network DNA

JULY 5, 2024

VXLAN EVPN Basic Topology EVPN Route Type The EVPN control plane advertises the following types of information: Ethernet auto-discovery (AD) routes are route type 1. Ethernet segment routes, or route type 4, are used to broadcast the length of the IP address, the originating router's IP address, and the Ethernet segment identifier.

IP Address 52

IP Address Ethernet Advertising Unicast 52

CATO Networks

AUGUST 22, 2023

Traditional WAN Overview WANs were designed to connect distributed corporate locations, traditionally, with WAN routers at each location. These WAN routers defined the network boundaries and routed traffic to the appropriate destination. This allows the use of public internet for transport, which reduces networking costs.

WAN 52

WAN Bandwidth Data Centers Routers 52

CATO Networks

NOVEMBER 15, 2017

Instead, remote locations generate an increasing amount of traffic bypasses the data center and goes directly to the Internet. MPLS connections are secure, as they are private networks that never touch the public Internet. Particularly with SaaS, many business critical applications are no longer hosted in on-site data centers.

MPLS 52

MPLS WAN Cloud Wide Area Network 52

CATO Networks

AUGUST 7, 2018

Work is done in more places and the Internet has become central to how business is conducted. IT becomes far more agile, deploying sites in minutes; leveraging any available data service such as MPLS , dedicated Internet access (DIA), broadband or wireless; and being able to reconfigure sites instantly.

WAN 52

WAN MPLS Wide Area Network Data Centers 52

Kentik

JANUARY 29, 2020

The flow analytics are used to make decisions on how traffic is being sent or received to other internet-connected peers via traffic engineering and optimization. This could mean finding an application or network owner or blocking malicious traffic, such as a DDoS.

Port 16

Port Network Networking Data Centers 16

Kentik

JANUARY 29, 2020

The flow analytics are used to make decisions on how traffic is being sent or received to other internet-connected peers via traffic engineering and optimization. This could mean finding an application or network owner or blocking malicious traffic, such as a DDoS.

Port 78

Port Network Networking Data Centers 78

Kentik

DECEMBER 18, 2019

Given that we only have one IP active in on each node, the next step was to have this landing node act as a router for inbound BGP connections with policy routing as the high-level design. On top of that, since our BGP nodes were identical, the distribution of sessions should be balanced. IPv6 peerings are starting to outgrow a single node.

Server 13

Server Topology TCP Network 13

Kentik

OCTOBER 3, 2016

Addressing the visibility gaps left by legacy appliances in centralized data centers, Kentik NPM uses lightweight software agents to gather performance metrics from real traffic wherever application servers are distributed across the Internet. Is it the Internet? Why we need another NPM solution, and why SaaS. Is it the network?

Routers 40

Routers Internet Network Networking 40

Kentik

MAY 31, 2023

Under this model, network topology is highly variable, creating a complexity that can mask root causes and make proactive availability configurations a highly brittle point of the network. A single misconfiguration, such as an incorrect firewall rule or a misrouted connection, can trigger a cascade of failures.

Network 52

Network Networking Cloud Routers 52

Kentik

MARCH 6, 2019

Google Compute Engine (GCE) - all pods can reach each other and can egress traffic to the internet. Kube-router (CloudNativeLabs) - provides a Linux LVS/IPVS-based service proxy, a Linux kernel forwarding-based pod-to-pod networking solution with no overlays.

Network 63

Network Networking Application Cloud 63

Kentik

JUNE 5, 2023

In the summer of 2022, I joined a team of BGP experts organized by the Broadband Internet Technical Advisory Group (BITAG) to draft a comprehensive report covering the security of the internet’s routing infrastructure. Below is an edited version of my take on the internet’s most notable BGP incidents.

IP Address 145

IP Address DNS Internet Routers 145