vi Dell Converged Enhanced Ethernet Administrator’s Guide53-1002116-01STP, RSTP, and MSTP configuration and management . . . . . . . . . . 51Enabling STP, RSTP, or MSTP . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Disabling STP, RSTP, or MSTP . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Shutting down STP, RSTP, or MSTP globally . . . . . . . . . . . . . . . . 51Specifying the bridge priority. . . . . . . . . . . . . . . . . . . . . . . . . . . . 52Specifying the bridge forward delay . . . . . . . . . . . . . . . . . . . . . . 52Specifying the bridge maximum aging time . . . . . . . . . . . . . . . . 53Enabling the error disable timeout timer . . . . . . . . . . . . . . . . . . 53Specifying the error disable timeout interval . . . . . . . . . . . . . . . 53Specifying the port-channel path cost . . . . . . . . . . . . . . . . . . . . 54Specifying the bridge hello time (STP and RSTP). . . . . . . . . . . . 54Specifying the transmit hold count (RSTP and MSTP). . . . . . . . 54Enabling Cisco interoperability (MSTP). . . . . . . . . . . . . . . . . . . . 55Disabling Cisco interoperability (MSTP) . . . . . . . . . . . . . . . . . . . 55Mapping a VLAN to an MSTP instance . . . . . . . . . . . . . . . . . . . . 55Specifying the maximum number of hopsfor a BPDU (MSTP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56Specifying a name for an MSTP region. . . . . . . . . . . . . . . . . . . . 56Specifying a revision number for an MSTP configuration . . . . . 56Flushing MAC addresses (RSTP and MSTP) . . . . . . . . . . . . . . . . 57Clearing spanning tree counters. . . . . . . . . . . . . . . . . . . . . . . . . 57Clearing spanning tree-detected protocols . . . . . . . . . . . . . . . . 57Displaying STP, RSTP, and MSTP-related information . . . . . . . . 58Configuring STP, RSTP, or MSTP on CEE interface ports . . . . . . . . . 58Enabling automatic edge detection . . . . . . . . . . . . . . . . . . . . . . 58Configuring the path cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58Enabling a port (interface) as an edge port . . . . . . . . . . . . . . . . 59Enabling the guard root . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59Specifying the MSTP hello time. . . . . . . . . . . . . . . . . . . . . . . . . . 60Specifying restrictions for an MSTP instance . . . . . . . . . . . . . . 60Specifying a link type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61Enabling port fast (STP). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61Specifying the port priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61Restricting the port from becoming a root port . . . . . . . . . . . . . 62Restricting the topology change notification . . . . . . . . . . . . . . . 62Enabling spanning tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62Disabling spanning tree. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63Chapter 7 Configuring Link Aggregation using the CEE CLIIn this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65Link aggregation overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65Link Aggregation Group configuration . . . . . . . . . . . . . . . . . . . . 65Link Aggregation Control Protocol. . . . . . . . . . . . . . . . . . . . . . . . 68Dynamic link aggregation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68Static link aggregation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68Dell-proprietary aggregation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68LAG distribution process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68LACP configuration guidelines and restrictions . . . . . . . . . . . . . . . . 69Default LACP configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69