30 Questions
Which member is considered the highest priority member in the first output?
T_INET_0
What is the metric used in the best quality rule?
Outbandwidth
What is the corrected available bandwidth difference (CBWD) in the first output?
999.9 kbps
Why is T_INET_1 placed below T_INET_0 in the first output?
Because ABWD is equal to or lower than the CBWD
What is the preferred member in the second output?
T_INET_1
Why does T_MPLS get placed below T_INET_1 in the first output?
Because T_MPLS has less available bandwidth
What is the purpose of the diagnose sys sdwan service command?
To display the output of the preferred member election
What is the relationship between ABWD and CBWD in determining the better member?
ABWD must be equal to or lower than CBWD
What is the configuration shown in the examples?
T_INET_0 as the highest priority member
What is the metric used in the second example?
Outbandwidth
Which member is considered better if its packet loss is equal to or lower than the CPL?
T_INET_1
In the third output, why is T_MPLS still placed on top of T_INET_1 even though its CPL is no longer lower?
FortiGate doesn't consider the CPL when moving a lower priority member back down the interface list.
What factor is considered for preferred member in terms of SLA targets?
The more SLA targets a member meets, the higher its preference.
What is the basis for member priority?
Interface Preference configuration
Which member is moved back below T_INET_1 in the fourth output?
T_MPLS
What does FortiGate prefer when moving a lower priority member back down the interface list?
The member with the lowest packet loss
What is the factor retrieved from member configuration for member cost consideration?
Member cost
What happens to T_MPLS in the second output?
It is placed on top of T_INET_1
What is the basis for T_MPLS being placed on top of T_INET_1 in the second output?
Its CPL is lower than T_INET_1
What does FortiGate consider when determining the preferred member?
SLA targets, member cost, and member priority
Why is T_INET_1 considered the better member in the first output?
T_INET_1 has a higher corrected available bandwidth than T_MPLS
What determines the advantage of a higher priority member over a lower priority member in the oif list?
Link-cost-threshold value
When is a lower priority member placed on top of a higher priority member in the oif list?
When the corrected packet loss (CPL) is equal to or higher than the packet loss of the higher priority member
What does FortiGate consider when moving a lower priority member back down the interface list?
Highest available bandwidth
What does the corrected packet loss (CPL) formula add to the packet loss?
Link-cost-threshold value
When does FortiGate select the member with the lowest packet loss percentage as the preferred member?
When the corrected packet loss (CPL) is lower than the packet loss of the highest priority member
What are the rules followed by FortiGate when building the oif list using bandwidth as the metric?
Higher priority member has an advantage over a lower priority member
When is a lower priority member placed below a higher priority member in the oif list?
When the corrected available bandwidth (ABWD) is equal to or lower than the available bandwidth of the higher priority member
What is the configuration setting that determines the advantage of a higher priority member over a lower priority member in the oif list?
Link-cost-threshold value
What does FortiGate consider when determining the preferred member in a best quality rule that uses packet loss as the metric?
Corrected packet loss (CPL)
Learn about the preferred member election process in a best quality rule that uses Outbandwidth as the metric. Understand how the configuration and link-cost-threshold impact the selection of the highest priority member. Explore the output of the diagnose sys sdwan service command.
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