Alcatel-Lucent 9500 MXC User Manual page 455

3DB 23063 ADAA - Rev 004 July 2007
• Rapid Failure Detection and Protection supports RWPR-enhanced RSTP,
layer 2 link aggregation and physical (layer 1) link aggregation. Select this
option where the DAC GE at the far end also displays this option.
Linked DAC GEs must have the same encoding option selected.
DAC GEs must be operating with SW release 3.6 or later to support compatibility
with DAC ES/IDU ES.
DAC GEs must be operating with SW release 3.6 or later to support Rapid Failure
Detection and Protection.
DAC GEs must be operating with SW release 3.4 or later to support Rapid Failure
Detection.
DAC GEs operating with SW release 3.3 or earlier do not support Rapid Failure
Detection, RWPR, or ES compatibility.
6.
Basic Port Settings
: Click to enable or disable the required ports. A port must be
6.1 Enabled
enabled to allow traffic flow. This enabling/disabling function does not
affect the Port Up and Resolved status indications.
: Enter the port name or other relevant port data (optional).
6.2 Name
6.3 Duplex - Speed
connection type and speed. Applies only to the electrical ports 1 to 3;
optical port 4 is fixed for 1000 Mb and full duplex. For ports 1 to 3 the
normal setting is Auto, where the auto negotiation feature senses and sets
the speed (10, 100 or 1000Base-T) and connection for half or full duplex
operation. The fixed options are used where auto negotiation fails to
provide the expected result or where a fixed setting is preferred:
• Auto negotiation is not 100% reliable, particularly so where the
connected equipment is using an older auto-sensing mechanism.
• Links with a duplex mismatch will operate, but will generate a large
number of errors and will slow throughput.
• Generally, for auto negotiation to work, both interfaces must be set to
auto for speed and duplex.
• Full-duplex can only be achieved if both interfaces are either set for
auto-negotiation or are manually configured to use full duplex.
• Full duplex will not operate via a hub/repeater. These are half duplex
devices.
• If auto-negotiation is enabled on only one side of the link, it will always
default to half-duplex, regardless of what the other side of the link is
forced to.
:
: Click to view and select auto-detect or a specified
9500 MXC User Manual
Vol. IV-7-65