Link Loss Carry Forward
Link Loss Carry Forward (LLCF) is provided as an aid in troubleshoot- ing a remote connection. When LLCF is enabled, loss of the receive signal at the TX port prevents the FX port from transmitting an idle signal onto the cable. Conversely, if the FX port does not detect a receive signal, the TX port does not transmit an idle signal.
When LLCF is disabled (default), the card continually transmits idle signals on both ports.
Warning: If LLCF is enabled on a remote access line card and there is no link on the card’s copper port, you will NOT be able to manage that remote card.
Refer to Link Loss Carry Forward for further details.
Auto-Negotiation
When AN is enabled, the copper port advertises 100Mbps and full/half duplex capability. The line card cannot
When AN is disabled (default), the copper port is set to full duplex.
IMPORTANT: The duplex mode of the device connected to the fiber port must be the same as the copper port’s connection.
Link Loss Return
Link Loss Return (LLR) is only applicable to the fiber optic port. When LLR is enabled, loss of the receive signal at the port disables its own transmit link.
When LLR is disabled (default), the fiber port continually transmits an idle signal.
Refer to Link Loss Return for additional information.
8 Installation Guide
