Grasp the network flow[Schematic] How does a Proxy server work? – http GET / https CONNECT method), DNS name order, Role, Advantage – A proxy server a proxy response server t... 2018.05.27Grasp the network flow
RoutingAbout VRF (Virtual Routing and Forwarding) About VRF VRF stands for Virtual Routing... 2017.04.20 2017.05.05Routing
RoutingPolicy-Based-Routing and IPROUTE2 PBR (Policy-Based Routing) I wrote befor... 2017.04.19 2017.08.06Routing
Link AggregationHow to determine Active port / Standby port by LACP In LACP, up to 16 Ethernet can be includ... 2017.11.19Link Aggregation
Link AggregationLACP format and structure Format of LACP The format of LACP is as ... 2017.11.27Link Aggregation
Link AggregationWhat is Slow Protocol When link aggregation and LACP are stand... 2017.11.19Link Aggregation
Must Know As a Network EngineerOSI Reference Model and IP Set Model What is OSI Reference Model and IP Set M... 2017.11.19 2021.01.05Must Know As a Network Engineer
FirewallHow Stateful Inspection Works What is Stateful Inspection Stateful Ins... 2017.10.24 2020.08.01Firewall
IPWhat is ICMP ~ Difference from layer and TCP, about how to use ~ What is ICMP ICMP stands for Internet Co... 2017.11.19 2020.09.01IP
RoutingCause and avoidance design of routing loop The routing loop is said the state that ... 2017.04.19Routing
RoutingRule of routing #5 Recursive Routing NextHop address of the routing is basica... 2017.04.19Routing
RoutingRule of routing #4 Administrative Distance (AD) About Administrative Distance (AD) Admin... 2017.04.19Routing
RoutingRule of routing #3 Longest Match Consider the network such as the followi... 2017.04.18 2017.04.19Routing
RoutingRule of routing #2 Packet Discarding (In Layer 3, ) the cases that incomming ... 2017.04.18 2021.01.05Routing
RoutingRule of routing #1 Header rewriting There was no particular change in the Et... 2017.04.18 2017.04.19Routing
SwitchingDifference between MAC address table and ARP table The difference between the MAC address t... 2017.11.28Switching
Grasp the network flowDifferrence between MTU & MSS, IP Fragmentation & TCP Segmentation Difference between MTU & MSS MTU(Maximum... 2017.11.29 2021.03.23Grasp the network flow