debug spanning-tree
To enable debugging of spanning-tree activities, use the
debug spanning-tree
command in EXEC mode. To
disable debugging, use the
no
form of this command.
debug spanning-tree
{
all | backbonefast | bpdu | bpdu-opt | config | etherchannel | events | exceptions |
general | ha | mstp | pvst+| root | snmp | synchronization | switch | uplinkfast
}
no debug spanning-tree
{
all | backbonefast | bpdu | bpdu-opt | config | etherchannel | events | exceptions
| general | mstp | pvst+| root | snmp | synchronization | switch | uplinkfast
}
Syntax Description
Displays all spanning-tree debug messages.
all
Displays BackboneFast-event debug messages.
backbonefast
Displays spanning-tree bridge protocol data unit (BPDU)
debug messages.
bpdu
Displays optimized BPDU handling debug messages.
bpdu-opt
Displays spanning-tree configuration change debug
messages.
config
Displays EtherChannel-support debug messages.
etherchannel
Displays spanning-tree topology event debug messages.
events
Displays spanning-tree exception debug messages.
exceptions
Displays general spanning-tree activity debug messages.
general
Displays high-availability spanning-tree debug messages.
ha
Debugs Multiple Spanning Tree Protocol (MSTP) events.
mstp
Displays per-VLAN spanning-tree plus (PVST+) event
debug messages.
pvst+
Displays spanning-tree root-event debug messages.
root
Displays spanning-tree Simple Network Management
Protocol (SNMP) handling debug messages.
snmp
Displays device shim command debug messages. This
shim is the software module that is the interface between
the generic Spanning Tree Protocol (STP) code and the
platform-specific code of various device platforms.
switch
Displays the spanning-tree synchronization event debug
messages.
synchronization
Command Reference, Cisco IOS XE Everest 16.5.1a (Catalyst 3650 Switches)
304
debug spanning-tree
Summary of Contents for Catalyst 3650 Series
Page 2: ... 2017 Cisco Systems Inc All rights reserved ...
Page 37: ...P A R T I Campus Fabric Campus Fabric page 13 ...
Page 38: ......
Page 51: ...P A R T II Interface and Hardware Components Interface and Hardware Commands page 27 ...
Page 52: ......
Page 165: ...P A R T III IP IP page 141 ...
Page 166: ......
Page 235: ...P A R T IV IP Multicast Routing IP Multicast Routing page 211 ...
Page 236: ......
Page 303: ...P A R T V IPv6 IPv6 page 279 ...
Page 304: ......
Page 307: ...P A R T VI Layer 2 3 Layer 2 3 page 283 ...
Page 308: ......
Page 399: ...P A R T VII Multiprotocol Label Switching MPLS MPLS page 375 Multicast VPN page 385 ...
Page 400: ......
Page 429: ...P A R T VIII Network Management Flexible NetFlow page 405 Network Management page 479 ...
Page 430: ......
Page 595: ...P A R T IX Programmability Programmability page 571 ...
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Page 624: ...Command Reference Cisco IOS XE Everest 16 5 1a Catalyst 3650 Switches 598 ping6 ...
Page 625: ...P A R T X QoS Auto QoS page 601 QoS page 641 ...
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Page 666: ...Command Reference Cisco IOS XE Everest 16 5 1a Catalyst 3650 Switches 640 show auto qos ...
Page 706: ...Command Reference Cisco IOS XE Everest 16 5 1a Catalyst 3650 Switches 680 trust device ...
Page 707: ...P A R T XI Routing Bidirectional Forwarding Detection page 683 ...
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Page 725: ...P A R T XII Security Security page 701 ...
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Page 875: ...P A R T XIII Stack Manager and High Availability Stack Manager and High Availability page 851 ...
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Page 1027: ...P A R T XV VLAN VLAN page 1003 ...
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Page 1100: ...Command Reference Cisco IOS XE Everest 16 5 1a Catalyst 3650 Switches 1074 vtp primary ...
Page 1102: ...Command Reference Cisco IOS XE Everest 16 5 1a Catalyst 3650 Switches 1076 Notices ...
Page 1108: ...Command Reference Cisco IOS XE Everest 16 5 1a Catalyst 3650 Switches IN 6 Index ...