2-18 Riverstone Networks RS 3000 Switch Router Getting Started Guide
Hardware Features
Introduction
The following table lists the media specifications for the 1000BASE-LH line card.
The 1000BASE-LH line card uses the following LEDs.
Table 2-12 1000BASE-LH line card specifications
Port type
Specification
1000Base-LH
•
802.3z standard (also uses 802.3x for flow control)
•
SC-style Media Interface Connector (MIC); either
connection pin in the MIC can be used for transmit or
receive
•
10 micron single-mode fiber-optic cable
•
Maximum 70 kilometers (229,659 feet) segment length
for 10 micron SMF fiber-optic cable
Table 2-13 1000BASE-LH line card LEDs
LED
Description
Per-port Link
Green
– Indicates that the port hardware detects a cable and a good link is
established.
Red (intermittent)
– Indicates that the port received an error during
operation.
Red (solid)
– Indicates that the port hardware detects a cable, however, a bad
link is established.
Off
– Indicates that no link from exists with the port.
Per-port Rx
Green
– Indicates when the port’s transceiver receives packets.
Orange
– Indicates when the port’s transceiver receives flow-control packets.
Per-port Tx
Green
– Indicates when the port’s transceiver transmits packets.
Orange
– Indicates when the port’s transceiver transmits flow-control
packets.
Per-port AN
Green
– Indicates that the line card is auto-negotiating the operating mode of
the link between full-duplex and half-duplex.
Orange (intermittent)
– Indicates that auto-negotiation is in process.
Orange (solid)
– Indicates a problem with auto-negotiation configuration.
Red
– Indicates an auto-negotiation failure. This fault may occur if the link
partner does not support full duplex.
Off
– Indicates that auto-negotiation has been disabled or the link is down.
