Scenario-2.3 Branch Office Network Setup – Configure Layer 2 VLANs and Spanning Tree

This is the 3rd configuration challenge in MyVirlLabs Scenario 2 labs based around setting up a medium sized branch office network.

In this the third lab we will be configuring a number of VLANs using one of the network’s VTP servers and then we will setup Spanning Tree and in a way that switches Core-1A will act as the Primary Root Bridge for all VLANs and Core-1B as the Secondary Root Bridge.

We will also optimize Spanning Tree timers by using the optional Diameter keyword.

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Scenario-2 Branch Office Network Setup

Scenario 2 will be based around building from scratch (using Cisco’s VIRL to simulate the topology) a medium sized branch office network that consists of two Layer 2 switches hosted in two separate Wire Closets that connect back to a highly available Layer 3 collapsed core switch layer.

Screen Shot 2017-12-03 at 9.31.47 AMThe scenario will be broken down into smaller sub sections each focused on addressing various configuration scenarios starting with setting basic universal switch configuration items across the different switches in the topology, establishing inter-switch connectivity including setting up 801.1q trunks, Etherchannel connections, Layer 2 settings like VLANS and Spanning Tree, Layer 3 SVIs and HSRP configuration and so on.

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Scenario-2.2 Branch Office Network Setup – Configure and Verify Inter-Switch Link Settings

The Scene

Following on from the previous Lab Scenario-2.1 where we applied basic Universal Switch configuration, we will now configure the inter-switch connections.

The Goal

A Static Layer 2 Etherchannel Trunk to be configured between Core-1A and Core-1B.

A Dynamic Layer 2 Etherchannel Trunk using LACP to be configured between UserAcc-1A and UserAcc-1B.

A Dynamic Layer 2 Etherchannel Trunk using PAGP to be configured between UserAcc-1A and UserAcc-1B.

The trunks between the Core Switches and UserAcc Switches should be dynamically negotiated with the Core Switches actively negotiating the trunks.

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Scenario-2.1 Branch Office Network Setup – Configure Universal Switch Settings

The Scene

Scenario-2.1

A Collapsed Core switch layer based on two interconnected Layer 3 switches has been installed in the office server room.

Two pairs of User Access Switches have been installed in two different Wire Closet locations.

Two pairs of User Access Switches have been installed in two different Wire Closet locations.

A Management Server located in the Server Room and two Host-PCs have been installed for future use and will be left powered off for the time being.

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Scenario-1 Prepare a new switch for operation and remote administration

The Scene
  • Install a new User Access switch (UserAcc-2) into an existing small network topology consisting of a single Layer 3 Core Switch and one other Layer 2 User Access Switch.
  • The existing Collapsed Core and User Access Switch have already been setup.
  • 802.1Q trunks have been setup between the existing User Access and Core Switch.
  • Switch CORE-1 is configured as the Spanning Tree Root Bridge for all VLANS.

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