Spanning tree protocols are used to prevent layer 2 loops in a switched network. There are various forms of spanning tree that have been standardized by the IEEE. The original standards; 802.1D - Legacy Spanning Tree (STP), 802.1w - Rapid Spanning Tree (RSTP) and 802.1s - Multiple...continue reading
The original ethernet specification was owned by DEC, Intel and Xerox hence the standard being named "Ethernet (DIX)". The ethernet specification has been through a number of updates over the years beginning with the IEEE standard in the early 1980's and going through many revisions....continue reading
Virtual Local Area Network (VLANs) are used to logically partition physical switch ports into multiple smaller broadcast domains. VLAN A VLAN is a logically segmented group of physical switchports that reduces the broadcast domain of the physical ports to the ports within the...continue reading
EIGRP is an 'advanced' distance vector routing protocol and is the evolution of IGRP. Originally EIGRP was a Cisco proprietary protocol but in 2013 Cisco announced its intention to make EIGRP on open standard. At the time of writing there is an only informational RFC: RFC7868. ...continue reading
Routing information protocol (RIP) is a interior distance vector routing protocol originally defined in RFC1058. RIP has had a number of improvements over the years with version 2 being defined RFC2453 and RIPng adding IPv6 support in RFC2080. Transport RIPv1 and RIPv2...continue reading