Age of MSG and Max in RSTP

Hello

Please, someone shed some light on the logic behind the age Message fields and age Maximum of RSTP BPDU. I have a block of temporary brain.

Thanks in advance. Nice day!!

Hello Bilal,

In your previous post you was explaing the 802.1 d (STP) process not 802.1W (rstp)

The maximum age timer specifies the maximum scheduled time of arrival of Hello BPDU. If the expiration of the timer of the age limit, the bridge detects that the link to the root bridge failed, and he initiated a convergence of the topology. The timer of the age limit should be longer than the configured Hello timer.

RSTP does not rely on STP timer values (delay and age max).

Instead, it uses a mechanism of proposal/agreement for a rapid convergence to a port.

Please check this document rstp ORC , it gives a good explantion with topologys how rstp synchronizes its ports not desgianted and how the proposal or the agreement is respected.

RES

Paul

Please do not forget to note all messages that have been useful.

Thank you.

Tags: Cisco Network

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