Layer 2 Technologies

    • 2.1.a Implement and troubleshoot switch administration
    • 2.1.a (i) Managing MAC address table
    • 2.1.a (ii) errdisable recovery
    • 2.1.a (iii) L2 MTU
    • 2.1.b Implement and troubleshoot layer 2 protocols
      • 2.1.b (i) CDP, LLDP
      • 2.1.b (ii) UDLD
    • 2.1.c Implement and troubleshoot VLAN
      • 2.1.c (i) Access ports
      • 2.1.c (ii) VLAN database
      • 2.1.c (iii) Normal, extended VLAN, voice VLAN
    • 2.1.d Implement and troubleshoot trunking
      • 2.1.d (i) VTPv1, VTPv2, VTPv3, VTP pruning
      • 2.1.d (ii) dot1Q
      • 2.1.d (iii) Native VLAN
      • 2.1.d (iv) Manual pruning
    • 2.1.e Implement and troubleshoot EtherChannel
      • 2.1.e (i) LACP, PAgP, manual
      • 2.1.e (ii) Layer 2, layer 3
      • 2.1.e (iii) Load-balancing
      • 2.1.e (iv) Etherchannel misconfiguration guard
    • 2.1.f Implement and troubleshoot spanning-tree
      • 2.1.f (i) PVST+/RPVST+/MST
      • 2.1.f (ii) Switch priority, port priority, path cost, STP timers
      • 2.1.f (iii) port fast, BPDUguard, BPDUfilter
      • 2.1.f (iv) loopguard, rootguard
    • 2.1.g Implement and troubleshoot other LAN switching technologies
      • 2.1.g (i) SPAN, RSPAN, ERSPAN
    • 2.1.h Describe chassis virtualization and aggregation technologies
      • 2.1.h (i) Multichassis
      • 2.1.h (ii) VSS concepts
      • 2.1.h (iii) Alternative to STP
      • 2.1.h (iv) Stackwise
      • 2.1.h (v) Excluding specific platform implementation
    • 2.1.i Describe spanning-tree concepts
      • 2.1.i (i) Compatibility between MST and RSTP
      • 2.1.i (ii) STP dispute, STP bridge assurance
  • 2.2 Layer 2 multicast
    • 2.2.a Implement and troubleshoot IGMP
      • 2.2.a (i) IGMPv1, IGMPv2, IGMPv3
      • 2.2.a (ii) IGMP snooping
      • 2.2.a (iii) IGMP querier
      • 2.2.a (iv) IGMP filter
      • 2.2.a (v) IGMP proxy
    • 2.2.b Explain MLD
    • 2.2.c Explain PIM snooping
  • 2.3 Layer 2 WAN circuit technologies
    • 2.3.a Implement and troubleshoot HDLC
    • 2.3.b Implement and troubleshoot PPP
      • 2.3.b (i) Authentication (PAP, CHAP)
      • 2.3.b (ii) PPPoE
      • 2.3.b (iii) MLPPP
    • 2.3.c Describe WAN rate-based ethernet circuits
      • 2.3.c (i) Metro and WAN Ethernet topologies
      • 2.3.c (ii) Use of rate-limited WAN ethernet services