HPE7-A04 · Question #73

What resiliency technologies relate to Default Gateway redundancy requirement on CX switches?

The correct answer is A. VRRP D. VSX Active Gateway. VRRP and VSX Active Gateway are both valid default gateway redundancy technologies on HPE Aruba CX switches. VRRP (RFC 5798) is the open-standard protocol that elects a virtual IP/MAC shared among routers, so if the primary fails, a standby takes over - providing transparent…

Designing Data Center Network Architectures

Question

Options

AVRRP
BCVLAN
CTransit VLAN
DVSX Active Gateway
EHSRP

How the community answered

(38 responses)

A
87% (33)
B
3% (1)
C
8% (3)
E
3% (1)

Explanation

VRRP and VSX Active Gateway are both valid default gateway redundancy technologies on HPE Aruba CX switches. VRRP (RFC 5798) is the open-standard protocol that elects a virtual IP/MAC shared among routers, so if the primary fails, a standby takes over - providing transparent failover for hosts. VSX Active Gateway is HPE Aruba's proprietary enhancement that goes further: both VSX peers simultaneously serve as the active default gateway, enabling active-active forwarding rather than active-standby.

Why the distractors are wrong:

B (CVLAN) is a Q-in-Q service provider tunneling concept, not a gateway redundancy mechanism.
C (Transit VLAN) is used for inter-device routing paths, not to provide a redundant gateway to end hosts.
E (HSRP) is Cisco's proprietary equivalent of VRRP - it is not supported on HPE Aruba CX switches, making it a trap for candidates familiar with Cisco environments.

Memory tip: On CX switches, think "V + V" - VRRP (the vendor-neutral standard) and VSX Active Gateway (the Aruba-exclusive upgrade). If you see HSRP, remember it's Cisco-only - it won't run on Aruba hardware.

Topics

#VRRP#VSX Active Gateway#default gateway#redundancy

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