Category Archives: Cisco

Demystifying BGP Synchronization

BGP synchronization is not commonly used today, however still part of the Cisco CCIE certification and must be understood by all candidates trying to obtain the certification. Further there may be some rare cases where this feature is still needed. Reading through literature, I found different definitions of how BGP synchronization works, especially when it… Read More »

Understanding IP Proxy ARP

One of the somewhat confusing protocols in Layer 2 networking is Proxy ARP. Probably most of you already know how ARP works. In this post I will explain the principles behind Proxy ARP, and have a short look at the benefits and drawbacks. ARP Basics The Address Resolution Protocol is responsible to find the MAC… Read More »