Ip Redundancy Configuration - Comtech EF Data CRS-170A Installation And Operation Manual

CRS-170A L-Band 1:1 Redundancy Switch
Modem and Switch Configuration
4.6.2

IP Redundancy Configuration

Before continuing you must remember that, when you use the Command Line Interface
(CLI), you can make configuration changes to the Online modem only. Make sure to press 'S'
to "Save Parameters to permanent storage" after making any changes to an active CLI page.
This ensures that the configuration change is also applied to the Backup modem.
Do these steps for setup of a CDM-570L or CDM-570AL 1:1 IP Redundancy System:
Step Task
1
Use a Layer 2 switch (preferred) or hub to establish an Ethernet connection between the two modems.
2
Before you connect the modems to the CRS-170A, you must first use the modem CLI to configure the
following CDM-570L or CDM-570AL IP operation settings:
• Disable 1:1 Redundancy operation – From the Main Menu, press 'E' to open the 1:1 Redundancy
Configuration page.
Press 'R' to toggle 1:1 Redundancy as [Disabled].
o
• From the Main Menu, press 'A' to open the Administration page.
Press 'W' (Administration  Working Mode) and set both modems to the same Working
o
Mode.
Press 'F' (Administration  Feature Configuration) and make sure to configure, using all
o
applicable submenus, both modems to have the same IP-related operability and settings.
3 For each modem, use the CLI to enter a unique IP Address that is on the same subnet:
• From the Main Menu, press 'I' to open the Interface Configuration page.
• Press 'E' to open the Ethernet Interface page (Interface Configuration  Ethernet Interface):
• Press 'I' to enter the IP Address.
4
Verify that you can ping from one modem to the other:
• From the Main Menu, press 'O' to open the Operations and Maintenance page.
• Press 'G' to open the Diagnostics page (Operations and Maintenance  Diagnostics):
• Press 'P' and then enter the IP Address of the other modem in the redundant pair.
5 Re-enable 1:1 Redundancy operation – From the Main Menu, press 'E' to open the 1:1 Redundancy
Configuration page.
• Press 'R' to toggle 1:1 Redundancy as [Enabled].
6 Power down both modems.
7 Connect the modems to the CRS-170A.
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-570L.
8 Power on both modems at the same time. Observe the CRS-170A Online LEDs to see which modem is
the Online modem. Monitor the CLIs for both modems to confirm the following:
Online modem CLI displays:
Offline modem CLI displays:
9 On the Online modem, view the CLI 1:1 Redundancy Configuration page (Figure 4-5) to confirm that the
correct Management IP Addresses and Prefix Lengths display for the Local and Redundant Units.
Then, press 'T' to set the Traffic IP Address, and 'M' to set the Traffic Subnet Prefix Length (these also
need to be in the same subnet as the Management IP addresses).
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
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MN/CRS170A.IOM
Revision 14