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CRS-180 70/140 MHz IF 1:1 Redundancy Switch
Modem and Switch Configuration
3.4.1
IP Redundancy Configuration
Setup of a CDM‐570 1:1 IP Redundancy System, using the CLI, is as follows:
Step
Procedure
1
The two modems will need an Ethernet connection to each other through a Layer 2 switch
(preferred) or hub.
2
Before connecting the modems to the CRS-180, you will need to first configure the following
CDM-570 IP module settings:
•
•
•
3
On both modems, enter a unique IP Address that is on the same subnet (Interface
Configuration
modem to the other (Operations and Maintenance
4
On both modems, set Redundancy Configuration
Parameters to permanent storage and power down both modems.
5
Connect the modems to the CRS-180..
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 CRS-180 Online LEDs to see which
modem is the Online modem).
Online modem CLI displays:
Offline modem CLI displays:
7
On the Online modem, select the Redundancy Configuration menu (Figure 3-2). Observe that
the correct IP Address/Mask is displayed for the Local and Redundant Unit. You will then need to
set the Traffic IP Address/Mask (this also needs to be in the same subnet as the Management IP
addresses).
Redundancy Configuration
Administration
Working Mode: Both modems need to be set to the same
Working Mode.
Administration
Features: Both modems need to have the same IP Option
Feature set.
Ethernet Interface
CDM‐570/CDM‐570L/CDMR‐570L Satellite Modem Installation and Operation
Manual (CEFD P/N MN/CDM570L.IOM): Sect. H.6 Cabling with the CDM‐570 IF.
1:1 Redundancy set to DISABLED.
IP Address). Verify that you can ping from one
Diagnostics
1:1 Redundancy to ENABLED. Save
1:1 Redundancy (Auto Detected)
Redundancy: PARAM File Connection Established.
Redundancy: Sending PARAM File...
1:1 Redundancy (Auto Detected)
Redundancy: Received PARAM File...
Writing 5447 bytes to PARAM file on Flash
3–8
Revision 8
MN/CRS180.IOM
Ping).
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