Which OMP Command Sends Non-Best Routes from vSmart?
Short answer
A Configure send-backup-paths under OMP on the vSmart controller to advertise the initial set of non-best backup routes to vEdge routers.
Question
Key Takeaways
Tests whether you know the OMP command that advertises backup paths rather than the one limiting equal-cost paths; the trap is confusing send-backup-paths with send-path-limit.
The OMP send-backup-paths command makes vSmart advertise backup/non-best paths to WAN Edge routers along with the best route. This page confirms option A and explains why path-limit commands do not satisfy the requirement.
Common mistake: Choosing send-path-limit 10 because it sounds like it increases the number of routes sent, but it caps equal-cost paths and does not advertise non-best backup paths.
Expert Analysis
Why the Answer Is Correct
Under OMP on the vSmart controller, the send-backup-paths command tells vSmart to advertise the initial set of non-best or backup paths to WAN Edge routers in addition to the best route. The question’s wording about transmitting the “initial set of non-best routes” maps directly to backup OMP paths. Option A uses the exact hyphenated CLI keyword expected under the OMP configuration hierarchy. This is a configuration behavior question, so the command name must match the vendor syntax and its documented purpose. Community discussion also converges on this interpretation, with one learner explaining that it tells vSmart to advertise backup/non-best OMP paths rather than only the best selected paths.
Why the Other Options Are Wrong
send-path-limit 10 controls the maximum number of paths advertised per prefix, typically equal-cost paths, and does not by itself cause non-best backup paths to be sent. Option C, controller-send-path-limit 10, sounds similar but is not the command that satisfies the stated requirement for advertising non-best routes. Option D, send backup paths, is not valid CLI syntax because the actual OMP command uses hyphens as send-backup-paths. A commenter noted that by default vSmart advertises only the best route for a prefix, which is exactly why an explicit backup-path command is needed. The path-limit options address quantity or ECMP behavior, not backup-path advertisement.
Community Comment Notes
As donciga noted, send-backup-paths tells vSmart under OMP to advertise the initial set of non-best/backup paths along with best routes, while send-path-limit 10 sets a maximum number of equal-cost routes per prefix. AonDuine similarly said the phrase “initial set of non-best routes” points directly to backup OMP paths and that the command advertises backup/non-best OMP paths to WAN Edge routers. Nabil17’s comment reinforces the default behavior: a vSmart controller normally advertises only the best route for a prefix. Taken together, the comments support option A and highlight the common confusion with path-limit settings.
Exam Strategy
Memorize the OMP command purpose by keyword: backup paths use send-backup-paths, while path limits control how many paths are advertised. When a question mentions non-best or backup routes from vSmart, look for the command containing “backup,” not “path-limit.”
Frequently Asked Questions
Why does send-path-limit 10 not send non-best routes?
Does send-backup-paths change which route vSmart selects as best?
Discussion 3 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 3
-
donciga 👍 1 Answered AThe send-backup-paths configuration command tells the vSmart controller under the Overlay Management Protocol (OMP) to advertise the initial set of non-best/backup paths along with the best routes. B. send-path-limit 10 sets the maximum total number of equal-cost routes advertised per prefix but does not inherently trigger the transmission of non-best/backup paths.
-
AonDuine 👍 1 Answered ACorrect answer: A. send-backup-paths The phrase “initial set of non-best routes” points directly to backup OMP paths. send-backup-paths tells the vSmart controller to advertise backup/non-best OMP paths to WAN Edge routers, not only the best selected paths.
-
Nabil17 👍 1 Answered BBy default, a vSmart controller advertises only the best route for a prefix to WAN Edge routers.
Reader comments & corrections
No reader corrections yet — spotted an error or have a note? Share it below.
Related Analysis
Practice All 300-415 Questions
Access 120 questions with complete answers and detailed explanations.
View Full 300-415 Practice Test →