[learning technology is a slow meal] the knowledge framework of network operation and maintenance

Technology is to be precipitated and accumulated, not to rise to the top in one step. For the network operation and maintenance of the knowledge framework, combined with their own practice summed up, for your reference, welcome to supplement & modify opinions.

Network basic network basic architecture (OSI seven-layer model, TCP_IP protocol stack.)

IPv4 address

Basic operation of network equipment (boot, restart, backup, upgrade, basic configuration.)

Basic switching technology (switching principle, Trunk,VTP,VLAN, layer 3 switching communication)

Etherchannel,STP...)

Basic routing technology (routing technology classification, static routing, RIP (understand), OSPF...) ACL&NAT

WAN wide area network

Advanced level

Advanced switching (Advanced switching Foundation (Multilayer switching, dynamic VLAN) switching Anti-Ring (RSTP,MSTP) switching redundancy (LACP, Gateway redundancy Technology HSRP GLBP VRRP) switching Security (VLAN***,DHCP Snooping,ARP Inspection, IP spoofing,stp bpdu-protection,Storm-control,Protected Port,VLAN-ACL/MAC-ACL,AAA,802.1X) Advanced routing (OSPF depth, BGP,IS-IS, Route redistribution, Route filtering Route-map,IPv6) Metropolitan area network technology (MPLS- × ×, MPLS TE,Quality of Service, multicast technology)

Security technology (IPSEC, × × technology, firewall technology, * basics, IDS/IPS,SNMP,Nexus)

Wireless technology WLAN