Comtech EF Data CDM-570 - Manual (Page 457)

CDM-570/570L Satellite Modem with Optional IP Module Revision 12
Appendix H MN/CDM570L.IOM
H–5
H.4 CDM-570/570L 1:1 IP Redundancy Configuration
The following steps are required for setting up a CDM-570 IP 1:1 redundant system using either
a CRS-170A (for the CDM-570L) or a CRS-180 (for the CDM-570) 1:1 Redundancy Switch:
1. First, the two CDM-570/570Ls will need an Ethernet connection to each other through a
Layer 2 switch or hub (preferably an L2 switch).
2. Before connecting the CDM-570/570Ls to the 1:1 switch, you will first need to configure
the following on the CDM-570/570L IP Module settings:
•
Administration Æ Redundancy Configuration Æ 1:1 Redundancy set
to DISABLED;
•
Administration Æ Working Mode: Both modems need to be set to the same
Working Mode;
•
Administration Æ Features: Both modems need to have the same IP Option
Feature set.
3. On both modems, enter a unique IP Address that is on the same subnet (Interface Æ
Ethernet Interface Æ IP Address). Verify that you can ping from one CDM-570/570L
to the other (Ops and Maintenance Æ Diagnostics Æ Ping).
4. On both modems, set Administration Æ Redundancy Configuration Æ 1:1
Redundancy set to ENABLED. Save Parameters to Permanent Storage and power down
both modems.
5. Connect the CDM-570/570Ls to the1:1 switch:
• Refer to Sect. H.4 for cabling with the CDM-570 IF Æ CRS-180;
• Refer to Sect. H.5 for cabling with the CDM-570L Æ CRS-170A.
6. While monitoring the Serial console CLI on both modems, observe the following after
powering on both modems at the same time (also observe the switch Online LEDs to see
which modem is the Online modem).
• Online modem CLI will display:
1:1 Redundancy (Auto Detected)
Redundancy: PARAM File Connection Established.
Redundancy: Sending PARAM File...
• Offline modem will display:
1:1 Redundancy (Auto Detected)
Redundancy: Received PARAM File...
Writing 5447 bytes to PARAM file on Flash