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Note: A redundant Ethernet interface is referred to as a reth in configuration commands. |
A redundant Ethernet interface is a pseudo interface that includes a physical interface from each node of the cluster.
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Before You Begin |
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Read Understanding Chassis Cluster Formation and Understanding Redundancy Groups |
A redundant Ethernet interface can contain either a pair of Fast Ethernet interfaces or a pair of Gigabit Ethernet interfaces that are referred to as child interfaces of the redundant Ethernet interface (the redundant parent). Each redundant Ethernet interface can contain only two interfaces because a cluster contains only two nodes. A single redundant Ethernet interface might include a Fast Ethernet from node 0 and a Fast Ethernet from node 1 or a Gigabit Ethernet from node 0 and a Gigabit Ethernet from node 1. Although a redundant Ethernet interface's interfaces must be the same kind—either Fast Ethernet or Gigabit Ethernet—they do not need to be in the same slots on each node.
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Note: A redundant Ethernet interface is referred to as a reth in configuration commands. |
A redundant Ethernet interface's child interface is associated with the redundant Ethernet interface as part of the child interface configuration. The redundant Ethernet interface child interface inherits most of its configuration from its parent.
A redundant Ethernet interface inherits its failover properties from the redundancy group x that it belongs to. A redundant Ethernet interface remains active as long as its primary child interface is available/active. For example, if reth0 is associated with redundancy group 1 and redundancy group 1 is active on node 0, then reth0 will be up as long as the node 0 child of reth0 is up.
A redundancy group x can contain up to 15 redundant Ethernet interfaces.
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