When you configure IPsec VPN High Availability Enhancements, which technology does Cisco recommend that you enable to make reconvergence faster?
A. EOT
B. IP SLAs
C. periodic IKE keepalives
D. VPN fast detection
When you configure IPsec VPN High Availability Enhancements, which technology does Cisco recommend that you enable to make reconvergence faster?
To make IPsec failover more efficient, it is recommended that IKE
keepalives be enabled on all routers.
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_conn_vpnav/configuration/xe-16-9/sec-vpn-availability-xe-16-9-book/sec-vpn-ha-enhance.pdf