Reference Guide

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Multiple Spanning Tree Protocol (MSTP)
Multiple spanning tree protocol (MSTP), as implemented by Dell Networking OS, conforms to IEEE 802.1s.
MSTP is supported by the Dell Networking OS on the S5000 switch.
debug spanning-tree mstp
Enable debugging of the multiple spanning tree protocol and view information on the protocol.
S5000
Syntax
debug spanning-tree mstp [all | bpdu interface-type slot/port
{in | out} | events]
Parameters
all (OPTIONAL) Enter the keyword all to debug all spanning
tree operations.
bpdu interface-
type slot/port
{in | out}
(OPTIONAL) Enter the keyword bpdu to debug bridge
protocol data units (BPDU).
(OPTIONAL) Enter one of the following keywords and slot/
port or number information. Valid slot numbers are 0-11. The
valid port numbers for each interface type are listed below.
• For a 10-Gigabit Ethernet interface, enter the keyword
tengigabitethernet followed by slot/port numbers.
The port range is 0 to 63.
• For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE followed by slot/port numbers. The ports are
48, 52, 56, and 60.
• For a Port Channel interface, enter the keywords port-
channel
followed by a number from 1 to 128.
Optionally, enter an in or out parameter in conjunction 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.
Multiple Spanning Tree Protocol (MSTP)
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