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Cisco Catalyst 3750 User Manual

Cisco Catalyst 3750
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B-91
Catalyst 3750 Switch Command Reference
OL-8552-07
Appendix B Catalyst 3750 Switch Debug Commands
debug spanning-tree mstp
debug spanning-tree mstp
Use the debug spanning-tree mstp privileged EXEC command to enable debugging of the Multiple
Spanning Tree Protocol (MSTP) software. Use the no form of this command to disable debugging.
debug spanning-tree mstp {all | boundary | bpdu-rx | bpdu-tx | errors | flush | init | migration |
pm | proposals | region | roles | sanity_check | sync | tc | timers}
no debug spanning-tree mstp {all | boundary | bpdu-rx | bpdu-tx | errors | flush | init | migration
| pm | proposals | region | roles | sanity_check | sync | tc | timers}
Syntax Description
Defaults Debugging is disabled.
Command Modes Privileged EXEC
Command History
all Enable all the debugging messages.
boundary Debug flag changes at these boundaries:
An multiple spanning-tree (MST) region and a single spanning-tree region
running Rapid Spanning Tree Protocol (RSTP)
An MST region and a single spanning-tree region running 802.1D
An MST region and another MST region with a different configuration
bpdu-rx Debug the received MST bridge protocol data units (BPDUs).
bpdu-tx Debug the sent MST BPDUs.
errors Debug MSTP errors.
flush Debug the port flushing mechanism.
init Debug the initialization of the MSTP data structures.
migration Debug the protocol migration state machine.
pm Debug MSTP port manager events.
proposals Debug handshake messages between the designated switch and the root switch.
region Debug the region synchronization between the switch processor (SP) and the route
processor (RP).
roles Debug MSTP roles.
sanity_check Debug the received BPDU sanity check messages.
sync Debug the port synchronization events.
tc Debug topology change notification events.
timers Debug the MSTP timers for start, stop, and expire events.
Release Modification
12.1(14)EA1 This command was introduced.

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Cisco Catalyst 3750 Specifications

General IconGeneral
Device TypeSwitch
Switching Capacity32 Gbps
Forwarding Rate38.7 Mpps
Stacking Bandwidth32 Gbps
RAM128 MB
Jumbo Frame SupportYes
Switch TypeManaged
ModelCatalyst 3750 Series
Uplink InterfacesSFP
Form FactorRack-mountable
MAC Address Table Size12, 000 entries
Routing ProtocolRIP, OSPF, EIGRP
Remote Management ProtocolSNMP, Telnet, HTTP
FeaturesLayer 3 switching, Layer 2 switching, auto-negotiation, BOOTP support, ARP support, VLAN support, auto-uplink (auto MDI/MDI-X), IGMP snooping, traffic shaping, MAC address filtering, Quality of Service (QoS), Jumbo Frames support, MLD snooping, Dynamic ARP Inspection (DAI), Cisco EnergyWise technology
Power over Ethernet (PoE)PoE
Operating Temperature-5 - 45 °C
Operating Humidity10% to 85% non-condensing

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