Q9Control, Data, Management Plane, and Operational Design
Refer to the exhibit. This network is using legacy STP 802.1D. Assuming that `hello_timer` is fixed at 2 seconds, which parameters can be changed to speed convergence after a single link or node failure?
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B 2
Selected Answer: B
The right answer is B. The max_age and forward delay parameters can be changed to speed up the STP convergence process.
Adjust max age and forward delay timers
Out of all these parameters, the only ones you can tune are:
hello — From 1 to 6
max age
forward delay
diameter — This depends on the network.
Do not change any of the values in this list. Keep these values at the recommended IEEE value:
lost_msg = 3
transit_delay = 1
bpdu_delay = 1
msg_overestimate = 1
Tx_halt_delay = 1
med_access_delay = 0.5
maximum_transmission_halt_delay = 1
https://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/19120-122.html
1
B is the correct answer