Users Guide

● Modify the hello-time in seconds in CONFIGURATION mode, from 1 to 10, default 2. With large configurations 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 Rapid-PVST 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
Rapid-PVST commands
show spanning-tree vlan
Displays Rapid-PVST status and configuration 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 configured
Command Mode EXEC
Usage
Information
None
Example
OS10# show spanning-tree
Spanning tree enabled protocol rapid-pvst with force-version rstp
VLAN 1
Executing IEEE compatible Spanning Tree Protocol
Root ID Priority 32769, Address 3417.eb3a.c080
Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID Priority 32769, Address 54bf.64be.f640
Configured hello time 2, max age 20, forward delay 15
Flush Interval 200 centi-sec, Flush Invocations 285
Flush Indication threshold 5
Supported
Releases
10.2.0E or later
spanning-tree vlan cost
Sets the path cost of the interface per VLAN for PVST calculations.
Syntax
spanning-tree vlan vlan-id cost {value}
Parameters value — Enter a port cost value to set the path cost of the interface for PVST calculations, from 1 to
200000000.
Defaults
● 100- Mb/s Ethernet interface = 200000
● 1 Gigabit Ethernet interface = 20000
● 10-Gigabit Ethernet interface = 2000
● Port-channel interface with one 100 Mb/s Ethernet = 200000
612 Layer 2