Comtech EF Data CDM-570A - Manual (Page 586)

CDM-570A/570AL Satellite Modem with Optional Packet Processor MN-CDM570A
Appendix N Revision 2
N–8
N.5 CDM-570A/570AL-IP 1:1 IP Redundancy Configuration
Do these steps:
1. First, you need to establish an Ethernet connection between the CDM-570A/570AL-IP pair.
You can do this by using a standard Ethernet Layer 2 Switch or Hub (it is recommended that
you use a Layer 2 Switch).
2. Before you can connect the CDM-570A/570AL-IP s to the CRS-XXX 1:1 switch, you must first
use the CLI to configure the following CDM-570A/570AL-IP Packet Processor settings.
From the CLI Main Menu (the applicable “hot key” is shown in brackets [#]):
• You must disable 1:1 Redundancy on both modems:
Administration [A]  Redundancy Configuration [E]  1:1 Redundancy [R]
Toggle 1:1 Redundancy State as DISABLED;
• You must set both modems to the same Working Mode;
Administration [A]  Working Mode [C]
• You must configure both modems with the same IP Option Features.
Administration [A]  Feature Configuration [F]
3. On both modems, enter a unique IP Address that is on the same subnet:
Interface Configuration [I]  Ethernet Interface [E]  IP Address [I]
Verify that you can ping from one CDM-570A/570AL-IP to the other:
Operations and Maintenance [O]  Diagnostics [G]  Ping [P]
4. Enable 1:1 Redundancy on both modems:
Administration [A]  Redundancy Configuration [E]  1:1 Redundancy [R]:
Toggle 1:1 Redundancy State as ENABLED.
Save Parameters to Permanent Storage [S] and power down both modems.
5. Connect the CDM-570A/570AL-IP to the1:1 switch:
• See Sect. P.4 for cabling the CDM-570A-IP to the CRS-180;
• See Sect. P.5 for cabling the CDM/R-570AL-IP to the CRS-170A.
6. While monitoring the CLIs for 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: