Dell C9000 Series Reference Manual page 1644

guard
Defaults none
Command Modes
•
•
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
8.5.1.0
8.4.2.1
7.6.1.0
7.5.1.0
6.4.1.0
6.2.1.1
Usage Information The following describes the show spanning-tree pvst command shown in the
following examples.
Field
Interface Name
Instance
Sts
Guard Type
• 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.
(OPTIONAL) Enter the keyword guard to display the type of
guard enabled on a PVST interface and the current port state.
EXEC
EXEC Privilege
Description
Introduced on the C9010.
Introduced on the Z9500.
Introduced on the S4820T.
Introduced on the Z9000.
Introduced on the S4810.
Added support for 4-port 40G line cards on ExaScale.
Support for the optional guard keyword was added on the C-
Series, S-Series, and E-Series TeraScale.
Introduced on the S-Series.
Introduced on the C-Series.
Expanded to display port error disable state (EDS) caused by
loopback BPDU inconsistency and Port VLAN ID inconsistency.
Introduced.
Description
PVST interface.
PVST instance.
Port state: root-inconsistent (INCON Root), forwarding (FWD),
listening (LIS), blocking (BLK), or shut down (EDS Shut).
Type of STP guard configured (Root, Loop, or BPDU guard).
Per-VLAN Spanning Tree Plus (PVST+) 1644