Transport Channel Configuration; Basic Port Settings; Priority Mapping - Alcatel-Lucent 9500 MXC User Manual

Transport Channel Configuration

Basic Port Settings

Priority Mapping

3DB 23063 ADAA - Rev 004 July 2007
Selection is provided for channel capacity on a per-channel basis:
Channel capacity is selected in multiples of 2.048 Mbps or 1.544 Mbps.
• For an ETSI selection each channel supports a maximum 98 Mbps. Where both
channels are used the combined maximum extends to 196 Mbps.
• For an ANSI selection one channel (either) can be configured to support a
maximum 100 Mbps. Both channels can be configured to support a combined
total of 196 Mbps.
• Both channels can be sent over the same radio path. Each can operate as
separate fast Ethernet VLANs, or aggregated (combined) using an external L2
switch.
Customer selection is provided for the following parameters:
Connection Type and Speed
Provides selection per-port of auto or manual settings for half or full duplex
operation, for 10 Mbps or 100 Mbps. In auto, the IDU ES self-sets these options
based on the traffic type detected.
Interface Cable Type
Provides selection per port of auto or manual settings for the interface cable type;
Mdi or MdiX (straight or cross-over cable respectively). The fixed options are
used in instances where auto negotiation fails to provide the expected result or
where a fixed setting is preferred.
Priority
Provides selection per-port of priority options low, medium low, medium high,
and high. This prioritization only has relevance to ports using a shared channel.
Ports with a higher priority will have their data packets accepted by the queue
controller ahead of the lower priority ports on a 8:4:2:1 weighted basis where, for
example, 8 high priority packets will be sent for every one low priority packet.
Provides selection of queue-controller operation for the following options. This
selection applies to all ports.
• Port Default allows priority to be set on a per-port basis (priority options low to
high - see Basic Port Settings above). It ignores any 802.1p VLAN priority tags
or IP DiffServ priority values.
9500 MXC User Manual
Vol. II-2-17