59235-02 A 3-1Section 3Managing FabricsThis section describes the following tasks that manage fabrics: Fabric Services Rediscovering a Fabric Adding a New Switch to a Fabric Replacing a Failed Switch Event Browser Device Information and Nicknames Zoning3.1Fabric ServicesFabric services security includes SNMP and In-band management. SimpleNetwork Management Protocol (SNMP) is the protocol governing networkmanagement and monitoring of network devices. SNMP security consists of aread community string and a write community string, that are basically thepasswords that control read and write access to the switch. The read communitystring ("public") and write community string ("private") are set at the factory tothese well-known defaults and should be changed if SNMP is enabled using theSystem Services or SNMP Properties dialogs. If SNMP is enabled (default) andthe read and write community strings have not been changed from their defaults,you risk unwanted access to the switch. Refer to ”Enabling SNMP Configuration”on page 3-2 for more information. SNMP is enabled by default.In-band management is the ability to manage switches across inter-switch linksusing QuickTools, SNMP, management server, or the application programminginterface. The switch comes from the factory with in-band management enabled. Ifyou disable in-band management on a particular switch, you can no longercommunicate with that switch by means other than a direct Ethernet or serialconnection. Refer to ”Enabling In-band Management” on page 3-2 for moreinformation.
