User guide

Brocade 6910 Ethernet Access Switch Configuration Guide 333
53-1002581-01
Chapter
18Spanning Tree Commands
This section includes commands that configure the Spanning Tree Algorithm (STA) globally for the
switch, and commands that configure STA for the selected interface.
TABLE 76 Spanning Tree Commands
Command Function Mode
spanning-tree Enables the spanning tree protocol GC
spanning-tree
cisco-prestandard
Configures spanning tree operation to be compatible with Cisco
prestandard versions
GC
spanning-tree forward-time Configures the spanning tree bridge forward time GC
spanning-tree hello-time Configures the spanning tree bridge hello time GC
spanning-tree max-age Configures the spanning tree bridge maximum age GC
spanning-tree mode Configures STP, RSTP or MSTP mode GC
spanning-tree pathcost
method
Configures the path cost method for RSTP/MSTP GC
spanning-tree priority Configures the spanning tree bridge priority GC
spanning-tree mst
configuration
Changes to MSTP configuration mode GC
spanning-tree
system-bpdu-flooding
Floods BPDUs to all other ports or just to all other ports in the same
VLAN when global spanning tree is disabled
GC
spanning-tree
transmission-limit
Configures the transmission limit for RSTP/MSTP GC
max-hops Configures the maximum number of hops allowed in the region before
a BPDU is discarded
MST
mst priority Configures the priority of a spanning tree instance MST
mst vlan Adds VLANs to a spanning tree instance MST
name Configures the name for the multiple spanning tree MST
revision Configures the revision number for the multiple spanning tree MST
spanning-tree bpdu-filter Filters BPDUs for edge ports IC
spanning-tree bpdu-guard Shuts down an edge port if it receives a BPDU IC
spanning-tree cost Configures the spanning tree path cost of an interface IC
spanning-tree edge-port Enables fast forwarding for edge ports IC
spanning-tree link-type Configures the link type for RSTP/MSTP IC
spanning-tree
loopback-detection
Enables BPDU loopback detection for a port IC
spanning-tree
loopback-detection action
Configures the response for loopback detection to block user traffic or
shut down the interface
IC