Foundry NetIron M2404C and M2404F Metro Access Switches
Configuring RSTP (Rev. 03)
Rapid Spanning Tree Protocol (RSTP)
© 2008 Foundry Networks, Inc.
Page 12 of 34
RSTP Global Configuration
Table 5
lists the RSTP global configuration commands.
Table 5: RSTP Global Configuration Commands
Command
Description
rapid-spanning-tree
Enables/disables the RSTP option.
rapid-spanning-tree
priority
Assigns the RSTP bridge priority value.
rapid-spanning-tree
hello-time
Sets the time interval in seconds between BPDU transmissions
from the ports of this unit.
rapid-spanning-tree
forward-delay
Sets the time duration in Listening and Learning states that
precede the Forwarding state, in seconds. Also used to age
dynamic entries in the Forwarding database when a topology
change occurs.
rapid-spanning-tree
max-age
Sets the time in seconds that learned Rapid Spanning Tree
information is kept before being discarded.
Enabling/Disabling RSTP
The
rapid-spanning-tree
command, in Protocol Configuration mode, enables/disables the
Spanning Tree option.
The Rapid Spanning Tree algorithm dynamically creates a tree through the network used to
efficiently direct packets to their destinations. When RSTP is enabled, the unit acts as a node in the
tree. To disable the spanning tree the user can also use the
no
form of the command.
By default, RSTP is disabled.
Command Syntax
device-name
(cfg protocol)#
rapid-spanning-tree
{
enable
|
disable
}
device-name
(cfg protocol)#
no rapid-spanning-tree
Argument Description
enable
Enables the rapid spanning tree status.
disable
Disables the rapid spanning tree status.
NOTE
RSTP cannot be used for VPLS uplink protection.
Consult with the “
Configuring Multiprotocol Label Switching (MPLS) and
Hierarchical Virtual Private LAN Services (H-VPLS)
” chapter for additional details.