Dell PowerConnect 5324 Command Line Interface Reference Manual

Spanning-Tree Commands 291
Default Configuration
Disabled.
Command Modes
Global configuration
User Guidelines
• This command can be enabled when all the ports are Access ports.
• This command is relevant in MSTP mode only.
• When this feature is enabled incoming IEEE RSTP/STP packets would be mapped to the
MSTP instance according to the port’s VLAN. Outgoing MSTP packets would be mapped to
IEEE RSTP/STP packets according to the port’s VLAN.
Example
The following example configures the switch to convert STP/RSTP packets to MSTP instances.
Spanning-tree guard root
Use the spanning-tree guard root interface configuration command to enable root guard on all the
spanning tree instances on that interface. Root guard restricts the interface to be the root port for
the switch. Use the no form of this command to disable root guard on the interface.
Syntax
spanning-tree guard root
no spanning-tree guard root
Default Configuration
Root guard is disabled
Command Modes
Interface configuration (Ethernet, port-channel)
User Guidelines
• Root guard can be enabled when the switch work in STP, RSTP and MSTP.
When root guard is enabled, if spanning-tree calculations cause a port to be selected as
the root port, the port transitions to the alternate state.
Console(config)# spanning-tree mst mstp-rstp

Dell PowerConnect 5324 Specifications

General

Switching Capacity	48 Gbps
VLAN Support	Yes
Rack Mountable	Yes
Device Type	Switch
MAC Address Table Size	8K entries
RAM	64 MB
Flash Memory	8 MB
Power Device	Internal power supply
Voltage Required	AC 120/230 V (50/60 Hz)
Jumbo Frame Support	Yes
Ports	24 x 10/100/1000 + 2 x SFP
Management	Web-based, SNMP, CLI
Enclosure Type	Rack-mountable
Routing Protocol	Static IP routing
Remote Management Protocol	SNMP 1, 2, 3
Features	Flow control, auto-negotiation, port mirroring, Quality of Service (QoS)
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3x
Operating Temperature	0 °C to 45 °C
Storage Temperature	-20 °C to 70 °C
Humidity	5% to 95% (non-condensing)
Layer	Layer 2