RoutingAbout VRF (Virtual Routing and Forwarding) About VRF VRF stands for Virtual Routing and Fowarding, create a virtual router within the physical router (or L3 switc...2017.04.202017.05.05Routing
RoutingPolicy-Based-Routing and IPROUTE2 PBR (Policy-Based Routing) I wrote before when the router executes routing, only destination IP address is considered. ...2017.04.192017.08.06Routing
RoutingBroadcast routing There are two types of IP broadcast. One is Limited Broadcast, the other is Directed Broadcast. Limited Broadcast ...2017.04.19Routing
RoutingCause and avoidance design of routing loop The routing loop is said the state that IP packets pass through the router two or more times until the TTL is exhausted....2017.04.19Routing
RoutingRule of routing #5 Recursive Routing NextHop address of the routing is basically to specify from among the segment of its Connected route.However, there ...2017.04.19Routing
RoutingRule of routing #4 Administrative Distance (AD) About Administrative Distance (AD) Administrative-Distance (hereinafter AD) is the value that determines a preference w...2017.04.19Routing
RoutingRule of routing #3 Longest Match Consider the network such as the following. On the back side of the Router4, there are the NW adresses of 10....2017.04.182017.04.19Routing
RoutingRule of routing #2 Packet Discarding (In Layer 3, ) the cases that incomming packet is discarded are following. 1. There is no route in the routing table I...2017.04.182021.01.05Routing
RoutingRule of routing #1 Header rewriting There was no particular change in the Ethernet header and the IP header at the time of the switching of Layer 2, but...2017.04.182017.04.19Routing
RoutingRouting table In the memory of the NW devices of Layer 3 (router or L3 switch), there is a space to store the routing information call...2017.04.172017.04.19Routing
RoutingConfiguring Routing Although switching can learn the MAC address table automatically, routing is basically to consider the network configura...2017.04.172021.01.05Routing
RoutingRouting Overview The Layer 2 defines communication directly or between connected devices across a Layer 2 device (L2 switch), but when yo...2017.04.172017.04.19Routing