PORT MIRRORING AND SETUP

CHAPTER 9: PORT MIRRORING AND SETUP

It is recommended to enable the Link Loss Alert (LLA) feature on ports that are connected to end devices. LLA should be disabled for switch ports connected in a ring.

The Link Loss Alert feature is disabled by default on 100 MB Fiber Optic ports. It can be enabled and disabled via the lla parameter in the setport command as follows:

setport port=<port#listrange> [lla=<enabledisable>]

The following example illustrates how to enable the link loss alert feature.

Example 9-4: Link loss alert

ML1200# device

ML1200(device)## setport port=3 lla=disable

ML1200(device)## show port=3

Configuration details of port 3

--------------------------------------------------

Port Name

: JohnDoe

Port Link State

: DOWN

Port Type

: TP Port

Port Admin State

: Enable

Port VLAN ID

: 1

Port Speed

: 100Mbps

Port Duplex Mode

: half-duplex

Port Auto-negotiation State

: Enable

Port STP State

: NO STP

Port GVRP State

: No GVRP

Port Priority Type

: None

Port Security

: Enable

Port Flow Control

: Enable

Port Back Pressure

: Enable

Port Link Loss Alert

: Disable

ML1200(device)## setport port=3 lla=enable

Link Loss Alert enabled

ML1200(device)## show port=3

Configuration details of port 3

--------------------------------------------------

Port Name

: JohnDoe

Port Link State

: DOWN

Port Type

: TP Port

Port Admin State

: Enable

Port VLAN ID

: 1

Port Speed

: 100Mbps

Port Duplex Mode

: half-duplex

Port Auto-negotiation State

: Enable

Port STP State

: NO STP

Port GVRP State

: No GVRP

Port Priority Type

: None

Port Security

: Enable

Port Flow Control

: Enable

Port Back Pressure

: Enable

Port Link Loss Alert

: Enable

9–10

MULTILINK ML1200 MANAGED FIELD SWITCH – INSTRUCTION MANUAL

Page 156
Image 156
GE instruction manual Example 9-4 Link loss alert, ML1200device## show port=3