Users Guide

Table Of Contents
Congure a Spanning Tree Protocol
Dell EMC Networking recommends conguring one of the supported spanning tree protocols (MSTP, RSTP, or RPVST+) on both VLT
peers.
Use a spanning tree protocol for initial loop prevention during the VLT startup phase and for orphan ports. Congure the spanning tree
protocol in the network before you congure VLT on peer switches.
NOTE
: RPVST+ is enabled by default.
RPVST+ conguration
Congure RPVST+ on both the VLT peers. This creates an RPVST+ instance for every VLAN congured in the system. With RPVST+
congured on both VLT nodes, OS10 supports a maximum of 60 VLANs. The RPVST+ instances in the primary VLT peer control the VLT
port channels on both the primary and secondary peers.
NOTE
: RPVST+ is the default STP mode running on the switch. Use the following command only if you have another variant of
the STP running on the switch.
Enable RPVST+ on each peer node in CONFIGURATION mode.
spanning-tree mode rapid-pvst
Congure RPVST+ — peer 1
OS10(config)# spanning-tree mode rapid-pvst
Congure RPVST+ — peer 2
OS10(config)# spanning-tree mode rapid-pvst
Virtual Link Trunking
1201