Network Redundancy by Using Ethernet Bonding
By using Ethernet bonding, a switched network with a single subnet can be used for network redundancy.
When using Ethernet bonding, two Ethernet interfaces are aggregated to a logical unit where one interface is active at a time, while the other interface acts as a backup. The two interfaces share the same IP and MAC addresses. If one of the interfaces fails, the other one will become active and continue to serve the operations, and the MX-ONE Service Nodes will be available on the functioning interface.
Ethernet bonding is only supported in the MX-ONE Service Nodes. The MGU has implemented a link fail-over mechanism that provides a similar functionality, if the active link fails the backup link will take over, see Example 2 of Configure MGU Interfaces by Command.
Link-failover is automatically enabled when there is a redundant LAN connected to MGU, but for proper alarm monitoring it is required to configure Link-fail over mode during MGU board setup. For more information, see Configure the Media Gateways.
The MGU set up as for a non-redundant system. For more information, see Example 1 of Configure MGU Interfaces by Command.