Reference Guide

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Multiple Spanning Tree Protocol (MSTP)
Multiple spanning tree protocol (MSTP), as implemented by the Dell Networking operating system (FTOS), conforms to
IEEE 802.1s.
This command supports the Dell Networking S4820T platform.
debug spanning-tree mstp
Enable debugging of the multiple spanning tree protocol and view information on the protocol.
S4820T
Syntax
debug spanning-tree mstp [all | bpdu interface {in | out} |
events]
Parameters
all (OPTIONAL) Enter the keyword all to debug all spanning tree
operations.
bpdu
interface {in |
out}
(OPTIONAL) Enter the keyword bpdu to debug bridge protocol data
units (BPDU).
(OPTIONAL) Enter the interface keyword along with 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 a number. The range is from 1 to 128.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port information.
• For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE then the slot/port information.
Optionally, enter an in or out parameter with the optional interface:
• For Receive, enter the keyword in.
• For Transmit, enter the keyword out.
events (OPTIONAL) Enter the keyword events to debug MSTP events.
Command Modes EXEC Privilege
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
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