Difference between STP and RSTP?

Answer Posted / sarath s

1. STP - IEEE standard is 802.1D
RSTP - IEEE standard is 802.1W
2. The main differeve is the convergence time
STP takes 20+30=50 sec to converge
RSTP takes less than 5 sec to converge
3. Flag bit of STP use only 2 bits, one for topology change
and another for topology change Acknowledgement.In RSTP
it uses all the 8 bit.Introduction of these bits(mainly
proposal and agreement bit) reduce the convergence time.
4. In STP only root bridge will send the BPDU's where as in
RSTP all the switch will send the BPDU's
5. RSTP introduce two more ports one alternate port(backup
for root port) and backup port (backup for designated
port)

Is This Answer Correct ?    10 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How to securing a computer network?

598


how i can Design a client–server network with two servers operating at 100Base- T Fast Ethernet speed and the clients operating at regular 10Base-T Ethernet speed using a 10/100 Mbps NIC. The hub is located in a wiring closet, but the servers and clients are not. Assume that a satisfactory performance is achieved at 40% utilization of the LAN.

2237


how to know how many samba users in solaris?

1595


whenever we give #metastat cmd in svm, it display output "need to maintain" state, what u do?

1519


PLEASE SEND FAQ FOR NETWORK ADMINISTRATOR

1534






Do you know what protocols fall under the tcp/ip internet layer?

569


Which protocol can be applied when you want to transfer files between different platforms, such between unix systems and windows servers?

650


Explain the use of a default gateway?

551


What characterizes a professional network administrator?

514


Response of switch when we send different vlan data from different port using same mac id.

1306


Define proxy servers and how do they protect computer networks?

554


hi this is raj igot job in tcs and also i got visa from u.s in this time i dont know what to do can u sugges me pls........

1444


Define one basic requirement for establishing vlans?

560


Define tunnel mode?

604


Can you please explain the difference between csma/cd and csma/ca?

631