CCIE – STP 802.1D – Fundamentals

INTRODUCTION For resiliency purposes, Layer2 topologies are designed and deployed in a physical loop. Unlike the IP protocol which uses the TTL field as a built-in mechanism for preventing packets from looping endlessly through the network, the Ethernet protocol does not provide such facility and therefore, unless we can prevent a layer2 loop, the following problems would occur: Broadcast storms – endless broadcast of frames through the entire L2 domain Hosts end-up receiving duplicates frames from different switches Unstable mac-address tables due to continuous host mac address learning on different ports The STP (Spanning Tree Protocol) was developed to avoid…

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Adding a Custom Device Digital Certificate on the F5-BIGIP

When you first deploy an F5 load balancer in your network, a self-signed device digital certificate is generated and stored on the F5-BIGIP appliance. While this is ok and works perfectly fine, it is not ideal in a production environment. In this blog I will show you how to add your own Digital Certificate on a F5-BIG-IP load balancer device.

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