Users Guide

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ethernet1/1/5 128.276 128 500 FWD 0 24577 90b1.1cf4.a523 128.276
ethernet1/1/6 128.280 128 500 LRN 0 24577 90b1.1cf4.a523 128.280
Interface
Name Role PortID Prio Cost Sts Cost Link-type Edge
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ethernet1/1/5 Desg 128.276 128 500 FWD 0 AUTO No
ethernet1/1/6 Desg 128.280 128 500 LRN 0 AUTO No
Global parameters
All non-root bridges accept the timer values on the root bridge.
Forward-time Amount of time required for an interface to transition from the Discarding state to the Learning state or from the
Learning state to the Forwarding state.
Hello-time Time interval within which the bridge sends BPDUs.
Max-age Length of time the bridge maintains conguration information before it refreshes information by recomputing the
RPVST+ topology.
• Modify the forward-time in seconds in CONFIGURATION mode, from 4 to 30, default 15.
spanning-tree vlan vlan-id forward-time seconds
• Modify the hello-time in seconds in CONFIGURATION mode, from 1 to 10, default 2. With large congurations involving more numbers
of ports, Dell EMC recommends increasing the hello-time.
spanning-tree vlan vlan-id hello-time seconds
• Modify the max-age (in seconds) in CONFIGURATION mode, from 6 to 40, default 20.
spanning-tree vlan vlan-id max-age seconds
View RPVST+ global parameters
OS10# show spanning-tree active
Spanning tree enabled protocol rapid-pvst with force-version rstp
VLAN 1
Executing IEEE compatible Spanning Tree Protocol
Root ID Priority 32769, Address 90b1.1cf4.a523
Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID Priority 32769, Address 90b1.1cf4.a523
We are the root of VLAN 1
Configured hello time 2, max age 20, forward delay 15
RPVST+ commands
show spanning-tree vlan
Displays RPVST+ status and conguration information by VLAN ID.
Syntax
show spanning-tree vlan vlan-id
Parameters vlan vlan-id — Enter the VLAN ID number, from 1 to 4093.
Default Not congured
Command Mode EXEC
Usage Information None
Example
OS10# show spanning-tree
Spanning tree enabled protocol rapid-pvst
VLAN 1
Layer 2 411