Network OS Administration Guide

Supporting Network OS 6.0.1a

Part Number: 53-1003768-04

Access Gateway in a logical chassis cluster

Although operations of a VDX switch configured in Access Gateway mode are similar to a node configured in native VCS mode while in Logical Chassis Cluster mode, there are some unique considerations that you should be aware of.

Nodes in a logical chassis cluster are configured in Logical Chassis Cluster mode. In this mode, both the data and configuration paths are distributed to other nodes in the cluster. The entire cluster is configured from the principal node. For more information, refer to Logical chassis cluster mode.

Behavior and operations of an Access Gateway node configured in a logical chassis cluster, such as removing the node from or adding the node to the cluster, are similar to operations in other nodes in the cluster. Access Gateway does not have any global configuration, so the default configuration for the node in Access Gateway mode is similar to a cluster node in native VCS mode. Failover in the cluster, both controlled and uncontrolled, also occurs the same as for an AG switch.

There are two methods for adding an Access Gateway node to the cluster:
  • You can enable Access Gateway on a standalone switch, then add the switch to the cluster. Before adding the switch, enable it for Access Gateway mode and configure Access Gateway features and policies through the Network OS AG commands. The node you add to the cluster must have same VCS ID as the cluster; otherwise the configuration on the node will revert to default configuration.
  • You can enable Access Gateway on a switch that is already a node in the cluster by just enabling AG on the switch.