HPE7-A08 Exam Dumps : HPE Aruba Networking Certified Professional – Switching

The configuration involves connecting two buildings over fiber using OM4 cabling with a distance of 200 meters. The current optics in use are 25GR (25 Gigabit Rate) optics.

For multimode fiber such as OM4, SR (Short Reach) optics are suitable for distances up to 300 meters. In contrast, LR (Long Reach) optics are typically designed for single-mode fiber and longer distances.

Therefore, to properly support the 200m OM4 fiber link, 25SR optics should be used instead of 25GR (which are often long-reach optics).

10SR and 10LR refer to 10Gbps optics, which do not meet the 25Gbps requirement.

25LR optics are for single-mode fiber and longer distances, not multimode.

If the ISL between two VSX core switches is down and logs indicate that Core-2 has disabled its VSX LAG interfaces, it means Core-2 has disabled its VSX LAG interfaces, likely as a protective or failover mechanism.

Keepalive packets being dropped (Option B) may cause issues but logs specifically state interface disablement.

Both switches forwarding traffic (Option C) is unlikely if ISL is down.

Downstream switches inability to forward traffic (Option D) is a consequence, not the cause.

In a VSX cluster, certain configurations such as DHCP relay need to be synchronized between both nodes. To sync DHCP relay configuration from the primary to the secondary, the command:

vsx-sync dhcp-relay

must be added under the VSX configuration on the primary switch. This ensures that DHCP relay settings are pushed to the secondary member automatically.

Adding vsx-sync ip-helper relates to IP helper addresses, not DHCP relay specifically.

Adding the sync command on the secondary has no effect as synchronization originates from primary.