Extend System-Id - Dell C9000 Series Reference Manual

Version
8.3.19.0
8.3.11.1
8.3.7.0
7.6.1.0
7.5.1.0
6.2.1.1
Related
protocol spanning-tree pvst
Commands

extend system-id

To augment the Bridge ID with a VLAN ID so that PVST+ differentiate between BPDUs for each VLAN, use
extend system ID. If the VLAN receives a BPDU meant for another VLAN, PVST+ does not detect a loop, and
both ports can remain in Forwarding state.
C9000 Series
Syntax
extend system-id
Defaults Disabled
Command Modes PROTOCOL PVST
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
8.3.1.0
Example
Dell(conf-pvst)#do show spanning-tree pvst vlan 5 brief
VLAN 5
Description
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.
— enter PVST+ mode.
Description
Introduced on the C9010.
Introduced on the Z9500.
Introduced on the S4820T.
Introduced on the Z9000.
Introduced on the S4810.
Introduced.
Per-VLAN Spanning Tree Plus (PVST+) 1641