HP Aruba Certified Campus Access Mobility Expert Written Exam HPE7-A07 Question # 12 Topic 2 Discussion
HPE7-A07 Exam Topic 2 Question 12 Discussion:
Question #: 12
Topic #: 2
What is the recommended configuration to ensure link aggregation is consistent in a campus topology using VSX with two aggregation switches and downlinks to access switches?
A.
Use the command "vsx-sync active-gateways" under the VSX context.
B.
Use a custom LACP hash algorithm for improved load balancing.
C.
Use the command "vsx-sync mclag-interfaces" from the global context.
D.
Use the command "vsx-sync mclag-interfaces" under the VSX context.
Comprehensive and Detailed Explanation From Exact Extract of HPE Aruba Networking Switching:
The VSX synchronization feature provides per-feature synchronization from the primary to the secondary VSX peer. For multi-chassis LAGs (MC-LAGs), the command that ensures both VSX peers maintain consistent LAG interface associations and attributes is entered under the VSX configuration context:
• Command syntax: vsx-sync mclag-interfaces
• Command context: config-vsx
Description (extract): Enables VSX synchronization of VSX LAG interface associations and attributes from the primary VSX switch to the secondary peer switch.
In a campus design with two aggregation switches in a VSX pair and access switches dual-homed using MC-LAG, enabling vsx-sync mclag-interfaces under the VSX context ensures consistent LAG membership, attributes, and behavior across the pair—avoiding configuration drift and aggregation inconsistencies.
[References:• ArubaOS-CX VSX Command Reference; “vsx-sync mclag-interfaces” (syntax, command context, and description).• Aruba Campus Switching Best Practices with VSX; MC-LAG consistency and VSX feature synchronization guidelines., ]
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