IP Address LAN Routers 
The Network DNA
JULY 31, 2024
In one of the articles , we talk about layer 2 switching where switches build the MAC address table to decide where to forward frame based on the destination MAC address. Here well see how a layer 3 switch or a router transmit packets between different networks using the layer 3 destination address.
Network Engineering
JANUARY 25, 2025
we have 2 different LANs, a printer and some PCs are connected to LAN 1 via an ethernet cable, and some PCs are connected to LAN 2, also via an ethernet cable. the devices connected to LAN 1 have an IP adress of (192.168.0.x), x), and the devices connected to LAN 2 have IP address in the form of (192.168.1.x).
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The Network DNA
JULY 5, 2024
EVPN provides several benefits over traditional Layer 2 VPN technologies, such as Virtual Private LAN Service (VPLS). Route type 2, or the advertisement route for MAC/IP: This broadcasts the MAC and IP addresses of the endpoints, or VTEPs, as well as endpoint reachability data.
Network Engineering
AUGUST 19, 2020
The problem is that when ESXi is down it takes down all the network with it, so I have to boot up another router to log in to it. ip dhcp pool mgmt network 10.0.0.0 default-router 10.0.0.1 domain-name LAN ip dhcp pool trusted network 10.0.10.0 default-router 10.0.10.1 ip dhcp pool untrusted network 10.0.20.0
Kentik
AUGUST 14, 2017
We know that flows are a set of packets that share common attributes including protocol, source and destination IP, and src, dst, and next-hop AS. are generated by individual routers, switches, and hosts rather than system wide. Base the rule on IP, which might be stated as “if IP address is in subnet 123.456.78.90
Kentik
AUGUST 1, 2016
In particular we’ve learned that speaking or advertising BGP to your service providers and/or peers lets you do two things: Make semi-intelligent routing decisions concerning the best path for a particular route to take outbound from your network (otherwise you would simply set a default route from your border routers into your service providers).
Kentik
JULY 28, 2021
Bad hardware (the switch or router port). Overwhelmed router. Congestion in the form of high-connection utilization or an overworked router in the path is another common source of trouble. TCP traceroute : A TCP trace reaches out to every router in the path to a target destination. Miss-matched duplexing (full vs. half).
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