Dell C9000 series, Reference Manual

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• 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.
guard (OPTIONAL) Enter the keyword
guard
to display the type of
guard enabled on a PVST interface and the current port state.
Defaults none
Command Modes
• EXEC
• 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 Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.5.1.0 Added support for 4-port 40G line cards on ExaScale.
8.4.2.1 Support for the optional
guard
keyword was added on the C-
Series, S-Series, and E-Series TeraScale.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.4.1.0 Expanded to display port error disable state (EDS) caused by
loopback BPDU inconsistency and Port VLAN ID inconsistency.
6.2.1.1 Introduced.
Usage Information The following describes the
show spanning-tree pvst
command shown in the
following examples.
Field Description
Interface Name PVST interface.
Instance PVST instance.
Sts Port state: root-inconsistent (INCON Root), forwarding (FWD),
listening (LIS), blocking (BLK), or shut down (EDS Shut).
Guard Type Type of STP guard configured (Root, Loop, or BPDU guard).
Per-VLAN Spanning Tree Plus (PVST+) 1644