Brocade Communications Systems 53-1002163-02 manual Chapter Configuring Link Aggregation

STP, RSTP, and MSTP configuration and management . . . . . . . . . . 64 Enabling STP, RSTP, or MSTP . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Disabling STP, RSTP, or MSTP . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Shutting down STP, RSTP, or MSTP globally . . . . . . . . . . . . . . . . 65 Specifying the bridge priority. . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Specifying the bridge forward delay . . . . . . . . . . . . . . . . . . . . . . 66 Specifying the bridge maximum aging time . . . . . . . . . . . . . . . . 66 Enabling the error disable timeout timer . . . . . . . . . . . . . . . . . . 67 Specifying the error disable timeout interval . . . . . . . . . . . . . . . 67 Specifying the port-channel path cost . . . . . . . . . . . . . . . . . . . . 67 Specifying the bridge hello time (STP and RSTP). . . . . . . . . . . . 68 Specifying the transmit hold count (RSTP and MSTP). . . . . . . . 68 Enabling Cisco interoperability (MSTP). . . . . . . . . . . . . . . . . . . . 69 Disabling Cisco interoperability (MSTP) . . . . . . . . . . . . . . . . . . . 69 Mapping a VLAN to an MSTP instance . . . . . . . . . . . . . . . . . . . . 69 Specifying the maximum number of hops

for a BPDU (MSTP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Specifying a name for an MSTP region. . . . . . . . . . . . . . . . . . . . 70 Specifying a revision number for an MSTP configuration . . . . . 70 Flushing MAC addresses (RSTP and MSTP) . . . . . . . . . . . . . . . . 71 Clearing spanning tree counters. . . . . . . . . . . . . . . . . . . . . . . . . 71 Clearing spanning tree-detected protocols . . . . . . . . . . . . . . . . 71 Displaying STP, RSTP, and MSTP-related information . . . . . . . . 72

Configuring STP, RSTP, or MSTP on CEE interface ports . . . . . . . . . 72 Enabling automatic edge detection . . . . . . . . . . . . . . . . . . . . . . 72 Configuring the path cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Enabling a port (interface) as an edge port . . . . . . . . . . . . . . . . 73 Enabling the guard root . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Specifying the MSTP hello time. . . . . . . . . . . . . . . . . . . . . . . . . . 74 Specifying restrictions for an MSTP instance . . . . . . . . . . . . . . 74 Specifying a link type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Enabling port fast (STP). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Specifying the port priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Restricting the port from becoming a root port . . . . . . . . . . . . . 76 Restricting the topology change notification . . . . . . . . . . . . . . . 76 Enabling spanning tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Disabling spanning tree. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Chapter 8	Configuring Link Aggregation
	In this chapter	79

Link aggregation overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Link Aggregation Group configuration . . . . . . . . . . . . . . . . . . . . 79 Link Aggregation Control Protocol. . . . . . . . . . . . . . . . . . . . . . . . 82 Dynamic link aggregation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Static link aggregation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Brocade-proprietary aggregation . . . . . . . . . . . . . . . . . . . . . . . . 82 LAG distribution process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

LACP configuration guidelines and restrictions . . . . . . . . . . . . . . . . 83 Default LACP configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Converged Enhanced Ethernet Administrator’s Guide	ix
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