Cisco advanced routing with Switching (Cisco section) 3–4 days

Day 03

1. What is HSRP? How does it work?

HSRP: Hot Standby Routing protocol
HSRP is a Cisco private protocol that ensures that user communication can be quickly and transparently restored when a network edge device or access link fails.
This provides redundant rows for the IP network. By using the same virtual IP address and virtual MAC address, two or more units on a LAN segment
Routers can serve as a virtual router for external use. HSRP enables Cisco routers within a group to monitor each other's running state.

2. What is the STP role?

STP: Spanning Tree protocol
Function: Logically disconnects the loop, prevents the broadcast storm from generating, when the line fails, the blocking interface is activated, resuming the communication, starting the backup line
's role.

Day 04

1. What is an ACL?

ACL (Access control list): Read the third layer, the fourth layer of Baotou information, according to predefined rules to filter the package. 2. Types and characteristics of access control lists
1) standard access control List
Filtering packets based on source IP address
List number is 1~99
2) Extended access Control List
Filter packets based on source IP address, destination IP address, specified protocol, port, etc.
List number is 100~199
3) Named access control List
Named access control lists allow names to be used instead of list numbers in standard and extended access control lists

Cisco advanced routing with Switching (Cisco section) 3–4 days