Rapid Spanning Tree Protocol (IEEE802.1W)

hello and this is sunny welcome back today I will talk about the main differences between the standard spanning tree protocol and a rapid spanning tree protocol rapid spanning tree protocol is an improved version of the classic spanning tree protocol both standards shares many features and functions but in this video I will mainly focus on that their differences in five areas first let us say some differences in terms of portables both versions have a root port and a designated port and their functions are still the same rapid spanning tree protocol guess reader will blocked port but and its two new ports alternate port and a backup port both alternate port and a backup report are in the blocking state but they function differently the alternate port is a similar to the blocked port in the standard spanning tree protocol it is the second best road port to the root bridge if the current root port fills the ordinate port will take over automated port is a substitute to a different settlement towards the root bridge on the other hand the backup port is used as a redundant non-designated port if there's already a designated port forwarding to a segment things the other port is the backup port in other words a backup port is a substitute to the same LAN segment away from the root bridge to summarize what a new report is the second best a root port to the root bridge and a backup a port is the second best the designated port to another switch or hub but not to the root bridge in rapid spanning tree protocol there's another new type of port edge put an edge port is directly connected to an endpoint workstation or device airports do not create switching loops and it do not cause any topology change airports are in the forwarding state but in a normal situation they do not participate in rapid spanning tree protocol let's see the difference is in terms of Porter state's standard spanning tree protocol has five states forwarding learning listening blocking and a disabled rapidly spanning tree protocol has a three states only forwarding learning and discarding posting a discarding state do not former the friends no process frames but that they do listen for BPD use rapidly spanning tree protocol introduces a new concept link type there are two link types point-to-point link and a shared link if the link between switches is for duplex is called point-to-point link if the link is a half duplex is considered as a shared link normally the link connected a hub would be a shared link in switched networks today most links operate in full duplex mode and are treated as point-to-point links only point-to-point link benefits from rapid transition to the forwarding state in rapid spanning tree protocol for rapid spanning tree protocol provides a faster topology change detection in a standard STP when a switch detects a topology change in the first it tells the road bridge by singing out is a TCM bpdu when the root bridge gets the message it a sense out is a TCP PDU to every other switch in the network but in the rapid spanning tree protocol the TCA message propagation is only one step process it a directly sends out that its message to everyone the initiator of the topology change which is switch D this case plus this information throughout the network there is no need to wait for the root bridge to be notified and this makes a faster topology change detection file last but not least rapid spanning tree protocol provides significantly faster convergence in response to network changes as TP can take 20 seconds maximum age to respond to a natural change rapid spanning tree protocol is able to respond to changes within six seconds and even much less for STP former delay timer 15 seconds by default is needed for the state transition for example the transition from the blocking state to forwarding state it takes a port to forward delay time 30 seconds for rapid spanning tree protocol there's no more forwarded delay timer in the transition as a matter of fact rapid spanning tree protocol does not use timer anymore instead it introduces a new way were handling convergence proposal agreement and synchronization which I will talk about in my next video I hope this video is helpful if you want to learn Network systematically please check out my playlists they are organized by topics thank you very much and see you next time [Music] you

Channel: Sunny Classroom

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Keywords: sunny classroom, networking, cyber security, security+, networking +, CCNA, Rapid Spanning Tree Protocol, RSTP, Rapid STP, classic STP, IEEE802.1W, IEEE 802.1D, alternate port, backup port, edge port, discarding state, forwarding state, Link type, p2p link, shared link, full-duplex, half-duplex, Max Age, TCN BPDU, TC BPDU, Forward Delay timer, RSTP proposal, agreement, synchronization.

Id: N_gBudULCu0

Length: 7min 17sec (437 seconds)

Published: Fri Jul 19 2019