You may check out that characteristic’s identify and Feel, “What exactly is a BPDU Skew, and How come I would like to detect it?” What we’re basically seeking to detect are BPDUs that aren’t being relayed as quickly as they ought to be.
After the root bridge election, the foundation bridge transmits BPDUs, as well as non-root switches relay that BPDU down the STP tree. This should happen speedily all around, Because the root bridge might be sending a BPDU each and every two seconds by default (“good day time”), plus the switches need to relay the BDPUs speedy more than enough so each swap is seeing a BPDU each two seconds.
That’s in a great world, however, and there are several imperfect networks out there! You might have a busy change that can’t spare the CPU to relay the BDPU http://www.bbc.co.uk/search?q=토토사이트 promptly, or simply a BPDU could basically be lost in transmission. That two-second good day time benefit doesn’t give the switches Substantially leeway, but we don’t want the STP topology recalculated unnecessarily both.
BDPU Skew Detection is strictly a notification attribute. Skew Detection will not consider action to stop STP recalculation when BDPUs will not be remaining relayed promptly ample because of the switches, but it's going to send a syslog information informing the community administrator of the trouble. The period of time among when the BDPU ought to have arrived and when it did arrive is generally known as “skew time” or “BPDU 먹튀 latency”.
A active CPU could swiftly uncover alone overcome if it had to ship a syslog concept For each and every BPDU delivery that’s skewed. The syslog messages will be limited to a person just about every sixty seconds, Until the “skew time” is at a vital degree. In that situation, the syslog message might be sent instantly without having one-for every-moment Restrict.
And what is “important”, In accordance with BDPU Skew Detection? Any price better than 1/two with the MaxAge price, generating the crucial skew time degree 10 seconds or increased.