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CHAPTER 9: PORT MIRRORING AND SETUP PORT MIRRORING AND SETUP
MULTILINK ML2400 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL 9–11
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 enabled by default on 10 MB Fiber Optic ports, and 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#|list|range> [lla=<enable|disable>]
The following example illustrates how to enable the link loss alert feature.
Example 9-4: Link loss alert
ML2400#
device
ML2400(device)##
setport port=11 lla=disable
ML2400(device)##
show port=11
Configuration details of port 11
--------------------------------------------------
Port Name : JohnDoe
Port Link State : DOWN
Port Type : TP Port
Port Admin State : Enable
Port VLAN ID : 1
Port Speed : 10Mbps
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
ML2400(device)## setport port=11 lla=enable
Link Loss Alert enabled
ML2400(device)## show port=11
Configuration details of port 11
--------------------------------------------------
Port Name : JohnDoe
Port Link State : DOWN
Port Type : TP Port
Port Admin State : Enable
Port VLAN ID : 1
Port Speed : 10Mbps
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