A.Step 2: Bind IP address to user policy: H3C can only use ACL to do this. Matching an IP address (segment) occupies an ACL for Permit/Deny. However, the number of ACLs is very small and does not have the actual deployment capability.

B.Step 1: Decoupling user location from IP address: H3C implements this by assigning a fixed IP address to a user when he/she logs online. This is very stupid. Once a user logs online, this IP address is permanently assigned to him/her and will never be given to anyone else. No matter how large the IP address pool is, it will never be enough because it is a mechanism that never recycles. Once an IP address is recycled, it will be impossible to distinguish between two users using the same IP address, and the policy will be messed up.

C.H3C decouples user location from IP address, and then binds IP address to user policy, thus decoupling user location from user policy.

D.The essence of free mobility is to decouple user access locations from user permissions, so users can access the network anytime and anywhere with consistent permissions.

A.Strong and weak current separation power supply module and service port are located on both sides of the device

B.All boards are front-plug design

C.FRR fast rerouting technology

D.BFD fast fault detection technology

A.CE6857

B.CE6881

C.CE6865

D.CE6863

E.CE16800

A.R250D-E has built-in Bluetooth

B.The overall speed of R250D-E is 1.267G

C.R250D-E supports PoEout downstream

D.R250D-E downstream 1*GE

A.Residential area

B.Square

C.Classroom

D.Rural