Spanning-Tree Mode; Spanning-Tree Mst - NETGEAR M6100 Series Reference Manual

no spanning-tree max-hops
This command sets the Bridge Max Hops parameter for the common and internal spanning
tree to the default value.
Format
no spanning-tree max-hops
Mode Global Config

spanning-tree mode

This command configures global spanning tree mode per VLAN spanning tree. On a switch,
only one mode can be enabled at a time.
When PVSTP or rapid PVSTP (PVRSTP) is enabled, MSTP/RSTP/STP is operationally
disabled. To reenable MSTP/RSTP/STP, disable PVSTP/PVRSTP. By default, NETGEAR
Managed Switch has MSTP enabled. In PVSTP or PVRSTP mode, BPDUs contain
per-VLAN information instead of the common spanning-tree information (MST/RSTP).
PVSTP maintains independent spanning tree information about each configured VLAN.
PVSTP uses IEEE 802.1Q trunking and allows a trunked VLAN to maintain blocked or
forwarding state per port on a per-VLAN basis. This allows a trunk port to be forwarded on
some VLANs and blocked on other VLANs.
PVRSTP is based on the IEEE 8012.1w standard. It supports fast convergence IEEE
802.1D. PVRSTP is compatible with IEEE 802.1D spanning tree. PVRSTP sends BPDUs on
all ports, instead of only the root bridge sending BPDUs, and supports the discarding,
learning, and forwarding states.
When the mode is changed to PVRSTP, version 0 STP BPDUs are no longer transmitted and
version 2 PVRSTP BPDUs that carry per-VLAN information are transmitted on the VLANs
enabled for spanning-tree. If a version 0 BPDU is seen, PVRSTP reverts to sending version 0
BPDUs.
Per VLAN Rapid Spanning Tree Protocol (PVRSTP) embeds support for PVSTP
FastBackbone and FastUplink. There is no provision to enable or disable these features in
PVRSTP.
To change from RPVST/PVST to other spanning-tree modes, enter the spanning-tree
forceversion {802.1d | 802.1s | 802.1w} command (see
forceversion on page 337).
Default Disabled
Format
spanning-tree mode {pvst | rapid-pvst}
Mode Global Config

spanning-tree mst

This command sets the Path Cost or Port Priority for this port within the multiple spanning
tree instance or in the common and internal spanning tree. If you specify an mstid
M6100 Series Switches
Switching Commands
339
spanning-tree