Users Guide

interface
interface
(OPTIONAL) Enter the keyword interface and the type slot/port of the
interface you want displayed. Type slot/port options are the following:
● For a port-channel interface, enter the keywords port-channel then the
port-channel ID.
● For a 1-GigabitEthernet interface, enter the keyword GigabitEthernet then
the slot/port information.
● For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port information.
root (OPTIONAL) Enter the keyword root to display configuration information on the
spanning tree group root.
summary (OPTIONAL) Enter the keyword summary to only the number of ports in the
spanning tree group and their state.
Command Modes EXEC Privilege
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
Networking OS Command Line Reference Guide.
Version Description
9.10(0.0) Introduced on the S6100–ON.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.5.1.0 Added support for 4-port 40G line cards on the E-Series.
8.4.2.1 Added support for the optional guard keyword on the C-Series, S-Series, and
E-Series.
8.3.7.0 Introduced on the S4810.
7.7.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.2.1.1 Introduced on the E-Series.
Usage
Information
Enable spanning tree group 0 prior to using this command.
The following describes the show spanning-tree 0 command shown in the example.
Field Description
“Bridge
Identifier...”
Lists the bridge priority and the MAC address for this STP bridge.
“Configured
hello...”
Displays the settings for hello time, max age, and forward delay.
“We are...” States whether this bridge is the root bridge for the STG.
“Current root...” Lists the bridge priority and MAC address for the root bridge.
“Topology
flag...”
States whether the topology flag and the detected flag were set.
Spanning Tree Protocol (STP) 1351