Configure the SLPP by Port

Before you begin

  • Enable SLPP globally before you configure it on a port.

About this task

Use SLPP on a port to avoid traffic loops on the port.

Note

Note

To provide protection against broadcast and multicast storms, as a best practice, enable Rate Limiting for broadcast traffic and multicast traffic.

Procedure

  1. In the navigation pane, expand Configuration > VLAN.
  2. Select SLPP.
  3. Select the Ports tab.
  4. Double-click PktRxThreshold for the desired port to edit the threshold value for packet reception.
  5. Double-click SlppEnable for the desired port.
  6. Select true to enable SLPP.
  7. Select Apply.

Ports Field Descriptions

Use the data in the following table to use the Ports tab.

Name

Description

IfIndex

Specifies the interface index number for a port.

PktRxThreshold

Specifies the threshold for packet reception. Configure the SLPP packet receive threshold to a value (1- 500) that represents the number of received SLPP-PDUs to shut down the port. This variable is a port-level parameter, therefore if the port is tagged, SLPP-PDUs from the various VLANs increment this single threshold counter. The default is 1.

SlppEnable

Activates SLPP on the selected interface. The default is disabled.

IncomingVlanId

Shows the VLAN ID of the classified packet on a port disabled by SLPP.

SrcNodeType

Specifies the source node type of the received SLPP packet.

PktRxCount

Shows the total number of SLPP packets the port received.

TimeToClrPktRxCount

Specifies the timer to clear the SLPP receive counter. After you enable SLPP and the port receives SLPP PDUs, the timer starts. After the timer exceeds the configured value, the system resets the count to zero. The default is 21,600 seconds.

RemainingTimeToClrPktRxCount

Shows the time remaining before the SLPP receive counter is reset to zero.

Job aid

The following table provides the SLPP values.

Table 1. SLPP values

Enable SLPP

Setting

Access SMLT

Yes

Core SMLT

No

Primary switch

Packet Rx threshold

5

Transmission interval

500 milliseconds (ms) (default)

Secondary switch

Packet Rx threshold

50

Transmission interval

500 ms (default)