CCIE Routing & Switching Question of the Week
What is the order of preference for filtering inbound border gateway protocol (BGP)?
Read moreAuthor: Johnny Bass
CCNA R&S Exam Prep Question of the Week
What are two characteristics of frame relay point-to-point subinterfaces?
Read moreCCNA R&S Exam Prep Question of the Week
Which of the following are characteristics of the 802.1Q protocol?
Read moreWhy Spanning Tree Should Be Dead But Isn’t
Spanning Tree Protocol (STP) is dead, or at least it should be. It’s too slow to converge when there’s a change, and it causes issues with performance because there is only one forwarding path. It was developed in 1985 by Radia Perlman at Digital Equipment Corporation to allow for redundant paths within a Layer 2 topology, which was great in 1985. In fact, it was huge! So much so, that it was later standardized by the IEEE as 802.1D, and we’ve been living with it ever since.
Read moreWhy Spanning Tree Should Be Dead But Isn’t
Spanning Tree Protocol (STP) is dead, or at least it should be. It’s too slow to converge when there’s a change, and it causes issues with performance because there is only one forwarding path. It was developed in 1985 by Radia Perlman at Digital Equipment Corporation to allow for redundant paths within a Layer 2 topology, which was great in 1985. In fact, it was huge! So much so, that it was later standardized by the IEEE as 802.1D, and we’ve been living with it ever since.
Read more