Spanning Tree Protocol
CONFIGURE > NETWORK CONNECTIONS > Network Interfaces > Select the target interface
Spanning Tree Protocol (STP) allows an Console Manager to discover and eliminate loops in network bridge links, preventing broadcast radiation and allowing redundancy.
When STP is implemented on switches to monitor the network topology, every link between switches, and in particular redundant links, are cataloged. The spanning-tree algorithm blocks forwarding on redundant links by setting up one preferred link between switches in the LAN. This preferred link is used for all Ethernet frames unless it fails, in which case a non-preferred redundant link is enabled.
Note:STP Limitations
If multiple bridges are created on the same switch, they should not be used on the same network segment as they have the same MAC addresses; therefore, STP will likely not work correctly as they will have the same bridge id.
Rapid Spanning Tree Protocol (RSTP), Multiple Spanning Tree Protocol (MSTP) and other proprietary protocols are not supported.
The bridge settings relating to STP cannot be changed from the default values shown below:
group_address
forward_delay (default is 15)
hello_time (default is 2)
max_age (default is 20)
priority (default is 32768 (0x8000))
Enable STP in a Bridge
To enable STP you can use the UI or CLI. The procedures are:
Bridge With STP Enabled - UI
CONFIGURE > NETWORK CONNECTIONS > Network Interfaces > Select the target interface > New Bridge page
- In the Network Interfaces page, click the Create New Bridge button.
- Click to select the Enable Spanning Tree Protocol option.
Bridge With STP Enabled - OGCLI
admin@
bridge_setting.id="system_net_physifs-5"
bridge_setting.stp_enabled=true
description="Bridge"
device="br0"
enabled=true
id="system_net_physifs-5"
media="bridge"
name="init_br0"
slaves[0]="net2.3"
Bridge With STP Disabled - OGCLI
admin@
bridge_setting.id="system_net_physifs-5"
bridge_setting.stp_enabled=false
description="Bridge"
device="br0"
enabled=true
id="system_net_physifs-5"
media="bridge"
name="init_br0"
slaves[0]="net2.3"