Switched Networks (L2-L3) Duration: 3 days

Switched Networks (L2-L3)
CONTENT
This course will give you an extended understanding for how switched networks are implemented and what techniques you should use to increase performance, security and redundancy in switched networks. The course is given in workshop format and contains many hands-on exercises. A Cisco lab with Layer 2 and Layer 3 switches are used.

TARGET AUDIENCE
This course is designed for network engineers with responsibility for design, configuration and integration of switched networks.

PREREQUISITES
This course requires good knowledge of data communication and fundamental understanding for TCP/IP.

EXCERCISES
This is a theoretical training with practical exercises.

NOTE: This course is not delivered with the FoldOut methodology.

Ethernet
• OSI- model
• LAN Cabling
• Auto-MDIX
• Speed/Duplex
• Ethernet Auto-Negotiation
• LAN standards
• Ethernet and CSMA
• Collision Domains
• Ethernet Frames
• MAC addresses, Unicast, Muticast and Broadcast

Switching
• Transparent Switching
• Basic switching functionality
• MAC address table
• Redundant Topologies
• Effective Design models
• Layer 2 switching
• Layer 3 Routing
• Layer 3 switching (Multilayer Switching)

VLAN
• Broadcast Domain
• Why VLAN
• What is VLAN
• Different types of VLAN
• VLAN Design
• Access and Trunk Ports
• Trunk Protocol 802.1q, Native VLAN
• Filtrering on trunk ports
• Static and Dynamic VLAN membership
• Distribute VLAN with GVRP (Generic VLAN Registration Protocol)
• Distribute VLAN with Ciscos VTP
• Troubleshoot VLAN and Trunks
• Private VLANs
• 802.1Q-in-Q Tunneling

Spanning-Tree
• Switch loops
• Need for redundancy
• Need for Spanning-Tree
• Spanning-Tree functions
• BPDU packet
• Timers
• Topology recalculation
• Enhancements to Spaning-tree
• Multiple Spanning tree (MST 802.1S)
• Rapid Spanning Tree (802.1W)
• Protecting Spanning-Tree
• Port Aggregation with Ether-channel

Fundamental IP
• Most common protocols in the IP stack
• Basic subnetting

Fundamental Routing
• What does a router need to forward traffic?
• Which networks does a router know
• Routing table and its information
• Static and Dynamic routing

Inter-VLAN Routing (routing between VLAN)
• Switching ports and Router ports
• Forwarding between VLAN
• Layer 3 switches

Router Redundancy
• Router redundancy with VRRP

Practical exercises
• Setting of Speed Duplex
• Verify MAC address table
• Assign Static MAC address
• Test Port Security
• Define Ports as Access/Trunk
• Create VLAN
• Define ports in VLAN/ See how VLAN splits a physical network into several logical networks. Verify with ping
• VTP/GVRP for administration of VLAN
• Try how long time “Original” STP takes
• Disable and enable PC port
• Disable uplinks
• Enable Portfast (Cisco feature)
• Enable Rapid Spanning-Tree
• Define Multiple Spanning-Tree
• Try BPDU Guard (Cisco feature)
• Define Ether-channel
• Fundamental IP subnetting
• Start IP routing on a Layer 3 switch
• Define VLAN interface and use as default gateway for a PC router
• Create layer 3 ports
• Setup and verify router redundancy with VRRP / HSRP

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