D-Link DES-3026 Reference Manual - Page 79

DES-3000 Series Layer 2 Switch CLI Reference Manual

config stp

Purpose

Used to setup STP and RSTP on the Switch.

Syntax

config stp {maxage <value 6-40> | hellotime <value 1-10> | forwarddelay <value 4-30> |

priority <value 0-61440> | version [rstp | stp] | txholdcount <value 1-10> | fbpdu

[enabled | disabled] | lbd [enabled | disabled] | lbd_recover_timer [0 | <sec 60-

1000000]}

Description

This command is used to setup the Spanning Tree Protocol (STP) for the entire switch.

Parameters

maxage <value 6-40>

−

The maximum amount of time (in seconds) that the Switch will wait

to receive a BPDU packet before reconfiguring STP. The default is 20 seconds.

hellotime <value 1-10>

−

The time interval between transmission of configuration messages

by the root device. The default is 2 seconds.

forwarddelay <value 4-30>

−

The maximum amount of time (in seconds) that the root device

will wait before changing states. The default is 15 seconds.

priority <value 0-61440>

−

A numerical value between 0 and 61440 that is used in

determining the root device, root port, and designated port. The device with the highest

priority becomes the root device.

The lower the numerical value, the higher the priority. The

default is 32,768.

version [rstp | stp]

- Select the Spanning Tree Protocol version used for the Switch. For IEEE

802.1d STP select

stp

. Select

rstp

for IEEE 802.1w Rapid STP.

txholdcount <value 1-10>

- The maximum number of Hello packets transmitted per interval.

Default value = 3.

fbpdu [enabled | disabled]

−

Allows the forwarding of STP BPDU packets from other network

devices when STP is disabled on the Switch. The default is enabled.

lbd [enable | disable] –

Enabling this feature temporarily block STP on the Switch when a

BPDU packet has been looped back to the switch. When the Switch detects its own BPDU

packet coming back, it signifies a loop on the network. STP will automatically be blocked and

an alert will be sent to the administrator. The LBD STP port will restart (change to discarding

state) when the

LBD Recover Time

times out. The default is enabled.

lbd_recover_timer [0 | <value 60-1000000>] -

This field will set the time the STP port will wait

before recovering the STP state set. 0 will denote that the LBD will never time out or restart

until the administrator personally changes it. The user may also set a time between 60 and

1000000 seconds. The default is 60 seconds.

Restrictions

Only administrator-level users can issue this command.

Example usage:

To configure STP with maxage 18 and hellotime 4:

DES-3026:4#config stp maxage 18 hellotime 4

Command: config stp maxage 18 hellotime 4

Success.

DES-3026:4#

75

Section	Page
Introduction	5
	5
	5
Accessing the Switch via the Serial Port	5
Setting the Switch’s IP Address	6
Using the Console CLI	8
	8
	8
Connecting to the Switch	8
Command Syntax	12
Basic Switch Commands	14
Switch Port Commands	27
Network Management (SNMP) Commands	31
SMTP Commands	53
Download/Upload Commands	58
Network Monitoring Commands	63
Spanning Tree Commands	78
Forwarding Database Commands	85
Broadcast Storm Control Commands	97
QoS Commands	99
Traffic Segmentation Commands	117
Port Mirroring Commands	120
VLAN Commands	123
Link Aggregation Commands	126
Basic IP Commands	133
IP-MAC Binding Commands	135
MAC Notification Commands	141
IGMP Snooping Commands	146
CPU ACL Filtering Commands	153
Port Security Commands	164
802.1X Commands	169
Time and SNTP Commands	188
Routing Table Commands	196
ARP Commands	198
D-Link Single IP Management Commands	201
Command History List	213

D-Link DES-3026 Reference Manual - Page 79

config stp, LBD Recover Time

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