What is the default interval for SAF hello packets?
A. 15 seconds
B. 15 seconds on links with speeds that are slower than T1 speeds
C. 40 seconds
D. 40 seconds on links with speeds that are slower than T1 speeds
E. 60 seconds
F. 60 seconds on links with speeds that are slower than T1 speeds
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/saf/configuration/xe-3s/saf-xe-3s-book/saf-configuring.pdf
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