HPE2-W09 Exam Questions

Network Analytics Engine (NAE) is a built-in analytics framework for network assurance and remediation on ArubaOS-CX switches. NAE allows monitoring, troubleshooting, and proactive network management using scripts and agents.However, NAE has some limitations on the number of scripts, agents, and monitors that can run on a switch, depending on the switch model and software version1. You can check whether a switch has reached its NAE limitations with the ''show capacities-status nae'' command, which displays the current and maximum number of scripts, agents, and monitors supported on the switch. Therefore, this correctly describes NAE limitations on ArubaOS-CX switches.

ARP and ND Suppression are features of ArubaOS-CX that reduce the broadcast traffic on EVPN VXLAN networks1.ARP and ND Suppression enable the switch to reply to ARP and ND requests with information present in the local ARP and neighbor cache, instead of flooding them to all VTEPs1.This reduces the bandwidth consumption and improves the network performance1.When ARP-Suppression is enabled, the switch replies to ARP requests with information present in the local ARP Table2. Therefore, this statement about ARP and ND Suppression is true, and the correct answer is yes.For more information on ARP and ND Suppression, refer to the Aruba Data Center Network Specialist (ADCNS) certification datasheet3and the EVPN VXLAN Guide for your switch model1.

The status is Pending, which means that the ring is configured but not operational.The ring instance may be in one of the following states: Idle, Initializing, Pending, or Failed1.The Pending state indicates that the ring instance is waiting for a trigger event to become operational, such as a link failure or a manual command1. The status does not depend on whether the ring is enabled administratively or not. https://www.arubanetworks.com/techdocs/AOS-CX/10.08/HTML/high_availability/Content/Chp_ERPS/ERPS_cmds/sho-erp-sta4.htm

ERPS is a feature of ArubaOS-CX that prevents loops at layer 2 on ring networks1.ERPS uses a protocol called Ring Auto Protection Switching (RAPS) to detect link failures and perform fast traffic switchover1.ERPS has two timers that control the protection switching mechanism: guard timer and hold off timer1.The guard timer prevents false switching caused by delayed or lost RAPS PDUs1.The hold off timer causes ERPS switches to delay unblocking a failed link after the link is restored1.This can be useful to prevent frequent topology changes due to link flapping or network instability1. Therefore, this is a guideline for configuring timers for ERPS, and the correct answer is yes.For more information on ERPS and timers, refer to the Aruba Data Center Network Specialist (ADCNS) certification datasheet2and the ERPS Guide for your switch model1.

Network Analytics Engine (NAE) is a built-in analytics framework for network assurance and remediation on ArubaOS-CX switches. NAE allows monitoring, troubleshooting, and proactive network management using scripts and agents. Virtual Switching Extension (VSX) is a high-availability technology that allows two ArubaOS-CX switches to operate as a single logical device. You can run NAE with VSX, but only the primary VSX member will actually run agents during normal operation.The secondary VSX member will only run agents if the primary member fails or is rebooted1. Therefore, this correctly describes NAE limitations on ArubaOS-CX switches.