Routing

About VRF VRF stands for Virtual Routing and Fowarding, create a virtual router within the physical router (or L3 switc...

PBR (Policy-Based Routing) I wrote before when the router executes routing, only destination IP address is considered. ...

There are two types of IP broadcast. One is Limited Broadcast, the other is Directed Broadcast. Limited Broadcast ...

The routing loop is said the state that IP packets pass through the router two or more times until the TTL is exhausted....

NextHop address of the routing is basically to specify from among the segment of its Connected route.However, there ...

About Administrative Distance (AD) Administrative-Distance (hereinafter AD) is the value that determines a preference w...

Consider the network such as the following. On the back side of the Router4, there are the NW adresses of 10....

(In Layer 3, ) the cases that incomming packet is discarded are following. 1. There is no route in the routing table I...

There was no particular change in the Ethernet header and the IP header at the time of the switching of Layer 2, but...

In the memory of the NW devices of Layer 3 (router or L3 switch), there is a space to store the routing information call...

Although switching can learn the MAC address table automatically, routing is basically to consider the network configura...

The Layer 2 defines communication directly or between connected devices across a Layer 2 device (L2 switch), but when yo...