一、 Layer 2 TechnologiesLayer 

STP

1.STP

2.RSTP

3.MSTP

4.Loop guard 5.Root guard 6.BPDU guard

7.TC-BPDU attack guard

VLAN

1.Access port 

2.Trunk port 

3.Hybrid port 

4.QinQ

5.Vlan Aggregation 

6.Mux VLAN

7.Voice VLAN 

Transparent bridge 

1.Local Bridging 

2.Remote Bridging

3.Integrated Bridging and Routing 

4.VLAN ID Transparent Transmission

Link Aggregation, Eth-Trunk and IP-Trunk, Load-balance, LACP

1.Link Aggregation 

2.LACP

Ethernet technologies

1.Speed and duplex

2.Ethernet, Fast Ethernet, Gigabit Ethernet, 10GE, 40GE,100GE 3.Auto MDI/MDIX

4.Auto negotiation 

5.Storm control

6.Unicast flooding control

Smart link 

DLDP

Switched Port Analyzer (port-mirroring)

CSS/iStack

HDLC/IP-Trunk and PPP/MP 

PPPoE

二、IPv4/v6 Unicast

IPv4 addressing, subnetting, and VLSM 

IPv4 tunneling and GRE

IPv6 addressing

ICMPv6

IPv6 functionality protocols 

Migration techniques 

1.Tunnelling techniques 

2.Translation techniques 

IPv4/v6 OSPF

1.Standard OSPF areas 

2.Stub area

3.Totally stubby area 

4.NSSA

5.Totally NSSA 

6.LSA types

7.Adjacency on a point-to-point and on a multi-access network 

8.Virtual-Link

9.LSA Filter

10.OSPF Fast Convergence

11.Stub Router

12.OSPF Authentication

IPv4/v6 IS-IS

1.NSAP

2.IS-IS Link-state packets 

3.IS-IS area type

4.IS-IS circuit type 

5.IS-IS TLV

6.IS-IS DIS and Pseudo node 

7.IS-IS SPF

8.IS-IS LSP

9.IS-IS Metric

10.IS-IS Route Leaking 

11.IS-IS MT

12.IS-IS Fast Convergence 

13.IS-IS LDP Synchronization 

14.IS-IS Authentication 

IPv4/v6 BGP

1.IBGP and EBGP

2.BGP attributes 

3.BGP synchronization

4.BGP routes Summarization 

5.Route Dampening

6.BGP route reflector 

7.BGP Community 

8.BGP Peer Groups 

9.BGP Security

10.Principles of Route Selection

Route Control

1.Filtering

2.IP Prefix list

3.Route Import(redistribution) 

4.Route policy 

5.Summarization 

6.Preference

7.Other advanced features

三、MPLS VPN 

MPLS

1.MPLS network component (P, PE, CE) 

2.MPLS label format

3.MPLS label encapsulation 

4.MPLS  label  stack 

5.MPLS label operation

6.Forwarding Equivalence Class 

7.LDP

8.Label advisement model

9.MPLS LDP—Local Label Allocation Filtering

10.MPLS LDP Inbound/outbound Label Binding Filtering

MPLS Layer 3 VPN

1.MP-IBGP VPNv4 peering 

2.VPN-instance

3.Route Distinguisher 

4.Route Target

5.Route Target import/export 

6.PE-CE–Dynamic Routes 

7.PE-CE–Static Routes

8.Redistributing PE-CE routes into VPNv4 

9.Redistributing VPNv4 routes into PE-CE routing table

10.MCE

Inter-AS MPLS VPN

1.Option A 

2.Option B 

3.Option C

四、IPv4/v6 Multicast

1.Multicast distribution tree 

2.Multicast forwarding 

3.Multicast RPF

4.PIM sparse mode

5.IGMP/MLD

6.IGMP Snooping/MLD Snooping 

7.PIM RP, and BSR

8.Multicast tools, features, and source-specific multicast

五、Network Security

Access lists 

uRPF

IP Source Guard 

AAA

802.1x / NAC 

NAT

1.Static NAT/NAPT 

2.Dynamic NAT/PAT 

3.Easy IP

4.NAT Server 

5.Twice NAT 

6.ALG

7.NAT Mapping

8.NAT Filtering

Device access control 

IPsec

Traffic Suppression 

Local Attack Defense

IP Address Anti-spoofing 

ARP Security

DHCP Security

六、QoS

1.Classification 

2.Traffic Policing 

3.Traffic Shaping

4.Congestion Avoidance

5.Congestion Management

七、Network Management

1.Syslog

2.IP Service Level Agreement SLA 

3.NetStream

4.NQA

5.SNMP

6.FTP

7.Telnet 

8.SSH

八、Feature

1.VRRP

2.VGMP

3.Interface Backup

4.NTP

5.DHCP

6.BFD

7.NSF/GR

8.NSR

九、SDN

1.Strategy of SDN/NFV 

2.SDN architecture 

3.VXLAN

4.EVPN