1-6In this way, the forwarding table entries of each device in the fabric can be consistent. Even if the masterfails, other devices can use the forwarding table synchronized from the master to perform layer 3forwarding, thus ensuring the accuracy of forwarding path. After re-electing the master, the fabric willrestart routing update.DLAAs a new link aggregation mode, DLA can improve fault tolerance and redundancy backup of usernetworks.Link aggregation enables you to configure ports on the same device as an aggregation port group,avoiding network interruptions resulted from single port failure. Based on link aggregation, DLAprovides a more reliable solution, with which you can select ports on different devices to form anaggregation port group. In this way, single port failure can be avoided and network reliability can begreatly improved, because the fabric can communicate with the destination network through ports onother devices in case a single device fails.XRN Fabric ConfigurationXRN Fabric Configuration Task ListComplete the following tasks to configure XRN fabric:Task RemarksSpecifying the Fabric Port of a Switch RequiredSpecifying the VLAN Used to Form an XRN Fabric OptionalSetting a Unit ID for a Switch OptionalAssigning a Unit Name to a Switch OptionalAssigning an XRN Fabric Name to a Switch OptionalSetting the XRN Fabric Authentication Mode OptionalConfiguring XRN Automatic Fabric for a Switch OptionalSpecifying the Fabric Port of a SwitchYou can specify the fabric port of a switch in either system view or Ethernet interface view.Configurations in system viewFollow these steps to specify a fabric port:To do… Use the command… RemarksEnter system view system-view —Specify the fabric port of aswitchfabric-port interface-typeinterface-number enableRequiredNot specified by defaultConfigurations in Ethernet interface viewFollow these steps to specify a fabric port: