High Availability

You can use one or two connections for HA redundancy support between the two members of an HA node. Using two rear interfaces for sharing redundancy information provides a high level of reliability. As a rule, MGT0 should be reserved as the boot/maintenance interface. This leaves MGT1 and MGT2 available for sharing HA information.

Management network ports feature automatic crossover negotiation so that a crossover cable is not necessary for HA cabling.

  1. Insert one end of an Ethernet cable into MGT1 on the rear panel of SBC1.
  2. Insert the other end of the Ethernet cable into the MGT1 on the rear panel of SBC2.
    This diagram shows the Mgmt1 connections between two SBCs.
  3. If you are setting up a dual connection, insert one end of the second Ethernet cable into MGT2 on the rear panel of SBC1.
  4. Insert the other end of the cable into MGT2 on the rear panel of SBC2.
    This diagram shows Mgmt1/Mgmt2 connections between two SBCs.
  5. Refer to the configuration procedures located in the HA Nodes chapter of the Configuration Guide.