Assume that an AOS-CX switch is already implementing DHCP snooping and ARP inspection successfully on several VLANs. What should you do to help…

To minimize disruption time if an AOS-CX switch reboots while implementing DHCP snooping and

ARP inspection, you should save the IP-to-MAC bindings to external storage. This ensures that the

DHCP snooping and ARP inspection tables, which are crucial for preventing spoofing attacks, are

preserved across reboots. When the switch restarts, it can reload these bindings from the external

storage, thereby maintaining network security and reducing the downtime associated with

rebuilding these tables.

1. Preserving Bindings: Saving IP-to-MAC bindings to external storage ensures that these critical

security tables are not lost during a reboot, maintaining network integrity.

2. Security Continuity: This practice helps to quickly restore security features like DHCP snooping and

ARP inspection, minimizing the window of vulnerability.

3. Operational Efficiency: By preserving these bindings, the switch can resume normal operations

faster, reducing disruption to network services.

Reference: Aruba's AOS-CX configuration guides and best practices for DHCP snooping and ARP

inspection detail the importance of saving IP-to-MAC bindings for maintaining network security

across reboots.