Redundancy and Load Balancing in LAN (RALAN)

Networking, Cisco

This course is for experienced network administrators who must ensure high availability of critical infrastructure, eliminating any single point of failure. You will learn to design resilient topologies and implement redundancy on Cisco devices for reliable operations.

The course covers both L2 and L3 techniques for load balancing, link aggregation, gateway redundancy and fast convergence. Emphasis is on practical work: hands-on labs and real-world case studies using Cisco features.

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The course:

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  • Redundancy and load balancing at L2
    1. Redundant distribution-layer design for a switch block
    2. Protection against access uplink or distribution switch failure
    3. L2 loops: detection and mitigation
    4. STP principles and operation
    5. STP variants: 802.1d, PVST+, RSTP, MST
    6. STP acceleration and protection mechanisms
    7. Lab - implementing Cisco PVST+ and RSTP
  • Link aggregation
    1. Protection against individual link failure
    2. Link aggregation standards: 802.3ad, LACP, PAgP
    3. Load balancing across aggregated links
    4. Lab - implementing Cisco EtherChannel L2/L3
  • Default gateway redundancy
    1. Protecting against gateway failure
    2. Protocols: HSRP, VRRP, GLBP
    3. Traffic distribution strategies
    4. Lab - HSRP and VRRP in a switch block with Rapid-PVST+
  • Switch block redundancy design
    1. Traditional STP- and FHR-based models
    2. STP-independent designs
    3. Switch stacking: Cisco VSS & MEC, StackWise & cross-stack EC
    4. Local vs. spanned VLANs, routed access layer
    5. Lab - Cisco StackWise and cross-stack EtherChannel
  • Redundancy and load balancing at L3
    1. Routed vs. switched design concepts
    2. Routing protocol convergence considerations
    3. Equal and unequal-cost load balancing
    4. Connecting LAN to multiple ISPs, multihoming, BGP
    5. Lab - implementations in RIP, EIGRP, OSPF and BGP
  • Endpoint multihoming
    1. Bonding / NIC teaming concepts
    2. Redundant connections for physical servers
    3. Redundant connections for virtualized servers
    4. Lab - Linux, Windows and VMware ESXi multihoming
Assumed knowledge:
Network Basics I and II and Routing in LAN I and II.
Recommended previous course:
Basics of the TCP/IP Protocol (TCP1)
Schedule:
2 days (9:00 AM - 5:00 PM )
Language:

Vybrané zákaznické reference

CS SOFT a.s., Tomáš F.
Redundancy and Load Balancing in LAN ( RALAN)
"Skoleni bylo perfektne pripravene a lektor mel vynikajici pristup."