Network Router User Manual

302 Brocade Mobility RFS4000, RFS6000 and RFS7000 CLI Reference Guide
53-1001931-01
Global Configuration commands
5
Parameters
mst [<0-15> priority
<0-61440>|
cisco-interoperability
[enable|disable]|
configuration|
forward-time <4-30>|
hello-time <1-10>|
max-age <6-40>|
max-hops <7-127>]
Enables the Multiple Spanning Tree Protocol on a bridge.
• <0-15> priority <0-61440> – Set the bridge priority for an
MST instance to the value specified. Use the no parameter
with this command to restore the default bridge priority value
• priority – Sets the bridge priority for the common
instance
• <0-61440> – Defines the bridge priority in increments
of 4096 (Lower priority indicates greater likelihood of
becoming root). The default value of the priority for each
instance is 32768
• cisco-interoperability [enable|disable] – Enables/disables
interoperability with Cisco's version of MSTP (incompatible
with standard MSTP)
• enable – Enables CISCO Interoperability
• disable – Disables CISCO Interoperability
• configuration – Multiple spanning tree configuration. This
command moves to the
(config-mst) instance. For
more information, see Chapter 13, Spanning tree-mst
Instance
• forward-time <4-30> – Sets the time (in seconds) after which
(if this bridge is the root bridge) each port changes states to
learning and forwarding. This value is used by all instances.
The default value is 15 seconds
• hello-time <1-10> – Sets the hello-time. The hello-time is the
time (in seconds) after which (if this bridge is the root bridge)
all the bridges in a bridged LAN exchange Bridge Protocol
Data Units (BPDUs). A very low value leads to excessive
traffic on the network, while a higher value delays the
detection of a topology change. This value is used by all
instances. The default value is
2 seconds