Dell C1048P Port Extender Networking Command-Line Reference Guide for the C900 - Page 1768

debug spanning-tree Enable debugging of the spanning tree protocol and view information on the protocol. C9000 Series Syntax debug spanning-tree {stp-id [all | bpdu | config | events | exceptions | general | root] | protocol} To disable debugging, use the no debug spanning-tree command. Parameters stp-id protocol all bpdu config events general root Enter zero (0). The switch supports one spanning tree group with a group ID of 0. Enter the keyword for the type of STP to debug, either mstp, pvst, or rstp. (OPTIONAL) Enter the keyword all to debug all spanning tree operations. (OPTIONAL) Enter the keyword bpdu to debug bridge protocol data units. (OPTIONAL) Enter the keyword config to debug configuration information. (OPTIONAL) Enter the keyword events to debug STP events. (OPTIONAL) Enter the keyword general to debug general STP operations. (OPTIONAL) Enter the keyword root to debug STP root transactions. Command Modes EXEC Privilege Command History This guide is platform-specific. For command information about other platforms, refer to the relevant Dell Networking OS Command Line Reference Guide. The following is a list of the Dell Networking OS version history for this command. Version 9.9(0.0) 9.2(1.0) 8.3.19.0 8.3.11.1 8.3.7.0 7.7.1.0 7.5.1.0 6.2.1.1 Description Introduced on the C9010. Introduced on the Z9500. Introduced on the S4820T. Introduced on the Z9000. Introduced on the S4810. Introduced on the S-Series. Introduced on the C-Series. Introduced on the E-Series. Usage Information When you enable debug spanning-tree bpdu for multiple interfaces, the software only sends information on BPDUs for the last interface specified. Related Commands protocol spanning-tree - enters SPANNING TREE mode on the switch. Spanning Tree Protocol (STP) 1768