Figure H-2. Cdm-570 1:1 Ip Redundancy Switchover - Comtech EF Data CDM-570 Installation And Operation Manual

CDM-570/570L Satellite Modem with Optional IP Module
Appendix H
When there is a switchover to the backup modem, this modem will now assume the Traffic IP. It
will also broadcast a "gratuitous ARP" which will tell all local devices to now associate a new
MAC address for the Traffic IP 172.18.10.20. Each device will update their ARP tables and
traffic will resume virtually instantaneously.
All configuration changes can only be made to the Online CDM-570/570L and
will require a "Save Parameters to permanent storage" so that the
configuration change is also applied to the Backup CDM-570/570L.

Figure H-2. CDM-570 1:1 IP Redundancy Switchover

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