Accedian EtherNID EE, Administrator'S Manual

Page: 79 / 206

4: Port configuration
Working connector
Selects the working connector for the specified port. The connector choice allows the user to perform a switchover
operation.
Revertive
(Link status Mode only)
If enabled, the traffic is switched back to the main connector after the Revert period has expired.
Revert period
Specifies the time, in seconds, that we must continuously detect a signal on the main connector. The timer is restarted if a
signal loss is detected during this period.
Link time out
Specifies the time, in seconds, to wait for the link to come up after switching to the standby connector. If the timer expires
and the link stays down, we switch back to the protected connector.
Media dependent interface
(Copper ports only)
Select Auto MDI Enable to have the unit automatically adapt the configuration of the connector to the cabling plant and
link partner type.
If you do not select Auto MDI Enable, you can manually define port settings as follows:
•
MDI: Typical setting for an Ethernet station. Link partner must be set to MDIX or a cross-over cable must be used.
•
MDIX: Typical setting for an Ethernet switch. Link partner must be set to MDI or a cross-over cable must be used.
Link speed
Sets port speed and duplex type.
Select Auto-negotiation enable to have the unit automatically negotiate port speed and duplex type with the device it is
connected to. For this to work the device must also be configured to support auto-negotiation.
If you do not select Auto-negotiation enable, you can manually define port speed and duplex type using the available
options.
Note: Auto-negotiation is mandatory for 1000BASE-T.
Link Loss Return (LLR)
(SFP fiber ports only)
This option determines how the unit notifies its link partner when a valid receive signal is absent on the link.
If this option is disabled, then:
•
For 1000BASE-X links, a Remote Fault Indicator using auto-negotiation advertisement is sent to the link partner.
•
For 100BASE-FX links, the FEFI idle pattern is sent to the link partner.
If this option is enabled, then the unit turns off its transmitter for the amount of time defined by LLR period, after which it is
re-enabled. This cycle is repeated until the link is re-established. Entering a value of 0, puts the laser into a disabled state
waiting for the opposite side to send a light pulse in order to re-establish the link. So for this reason, 0 should not be
configured on both sides or the link will never re-establish.