Dell Force10 E600i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 994
SNMP Traps for Root Elections and Topology Changes, Configuring Spanning Trees as Hitless
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www.dell.com | support.dell.com To enable the root guard on an STP-enabled port or port-channel interface, enter the spanning-tree rootguard command: Task Enable STP root guard on a port or port-channel interface. stp-id: Spanning Tree instance. Range: 0 to 63. cost number: (Optional) Cost value used to select the port as a forwarding port. Range: 0 to 200000. priority number: (Optional) Priority used to select the port as a forwarding port if more than one port have the same cost. Range: 0 to 240. portfast [bpduguard [shutdown-on-violation]]: (Optional) Enable PortFast to start forwarding traffic sooner and optionally shutdown of the interface hardware when it receives a BPDU (refer to Enabling PortFast). Command Syntax spanning-tree stp-id rootguard [cost number] [priority number] [portfast [bpduguard [shutdown-on-violation]]] Command Mode INTERFACE INTERFACE PORT-CHANNEL To disable STP root guard on a port or port-channel interface, enter the no spanning stp-id rootguard command in an interface configuration mode. To verify the STP root guard configuration on a port or port-channel interface, enter the show spanning-tree 0 guard [interface interface] command in global configuration mode. SNMP Traps for Root Elections and Topology Changes • Enable SNMP traps for Spanning Tree state changes using the command snmp-server enable traps stp. • Enable SNMP traps for MSTP using the command snmp-server enable traps xstp. Configuring Spanning Trees as Hitless c e Configuring Spanning Trees as Hitless is supported only on platforms: You can configure Spanning Tree (STP), Rapid Spanning Tree (RSTP), Multiple Spanning Tree (MSTP), and Per-Vlan Spanning Tree (PVST+) to be hitless (all or none must be configured as hitless). When configured as hitless, critical protocol state information is synchronized between RPMs so that RPM failover is seamless, and no topology change is triggered. Configure all Spanning Tree types to be hitless using the command redundancy protocol xstp from CONFIGURATION mode, as shown in the following example. FTOS(conf)#redundancy protocol xstp FTOS#show running-config redundancy ! redundancy protocol xstp FTOS# 994 | Spanning Tree Protocol
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