Enabling Snmp Traps For Root Elections And Topology Changes; Configuring Spanning Trees As Hitless - Dell S4820T Configuration Manual

Hide thumbs Also See for S4820T:

Table of Contents

Enable root guard on a port or port-channel interface.

INTERFACE mode or INTERFACE PORT-CHANNEL mode

spanning-tree {0 | mstp | rstp | pvst} rootguard

– 0: enables root guard on an STP-enabled port assigned to instance 0.

– mstp: enables root guard on an MSTP-enabled port.

– rstp: enables root guard on an RSTP-enabled port.

– pvst: enables root guard on a PVST-enabled port.

To disable STP root guard on a port or port-channel interface, use the no spanning-tree 0

rootguard command in an interface configuration mode.

To verify the STP root guard configuration on a port or port-channel interface, use the show spanning-

tree 0 guard [interface interface] command in a global configuration mode.

Enabling SNMP Traps for Root Elections and Topology

To enable SNMP traps individually or collectively, use the following commands.

Enable SNMP traps for spanning tree state changes.

snmp-server enable traps stp

Enable SNMP traps for RSTP, MSTP, and PVST+ collectively.

snmp-server enable traps xstp

You can configure STP, RSTP, MSTP, and PVST+ to be hitless (configure all or none as hitless). When

configured as hitless, critical protocol state information is synchronized between the RPMs so that RPM

failover is seamless and no topology change is triggered.

To be hitless per spanning tree type or for all spanning tree types, use the following commands.

Configure LACP to be hitless.

CONFIGURATION mode

redundancy protocol lacp

Configure all spanning tree types to be hitless.

CONFIGURATION mode

redundancy protocol xstp

Example of Configuring all Spanning Tree Types to be Hitless

Dell(conf)#redundancy protocol xstp

Dell#show running-config redundancy

redundancy protocol xstp

Spanning Tree Protocol (STP)

Show Quick Links

Table of Contents

Troubleshooting