Manualshelf

Quick Reference Guide

ManualsBrandsDell ManualsComputer equipmentPowerConnect B-TI24x
131132133134135136137138139140
100 PowerConnect B-Series TI24X Configuration Guide
53-1002269-02
Configuring standard STP parameters
6
Syntax: show span [vlan <vlan-id>] | [pvst-mode] | [<num>] | [detail [vlan <vlan-id> [ethernet
<portnum>] | <num>]]
The vlan <vlan-id> parameter displays STP information for the specified port-based VLAN.
The pvst-mode parameter displays STP information for the device Per VLAN Spanning Tree (PVST+)
compatibility configuration. Refer to “PVST/PVST+ compatibility” on page 150
The portnum parameter is a valid port number.
The <num> parameter displays only the entries after the number you specify. For example, on a
device with three port-based VLANs, if you enter 1, then information for the second and third VLANs
is displayed, but information for the first VLAN is not displayed. Information is displayed according
to VLAN number, in ascending order. The entry number is not the same as the VLAN number. For
example, if you have port-based VLANs 1, 10, and 2024, then the command output has three STP
entries. To display information for VLANs 10 and 2024 only, enter show span 1.
The detail parameter and its additional optional parameters display detailed information for
individual ports. Refer to “Displaying detailed STP information for each interface” on page 102.
The show span command shows the following information.
TABLE 24 CLI display of STP information
This field... Displays...
Global STP parameters
VLAN ID The port-based VLAN that contains this spanning tree (instance of STP). VLAN 1 is
the default VLAN. If you have not configured port-based VLANs on this device, all
STP information is for VLAN 1.
Root ID The ID assigned by STP to the root bridge for this spanning tree.