Alcatel-Lucent 1643 AMS User's Operation Manual page 384

Traffic provisioning
Configurable Auto-negotiation
The X5IP option card supports configurable Auto-negotiation for 1000BASE-X PHYs,
10/100/1000BASE-T(X), and 10/100BASE-T(X) rates.
1000BASE-X PHYs
1000BASE-X Ethernet PHYs support Auto-negotiation for Duplexity (Full/Half
Duplex) and pause operations (none, Rx only, Tx only or both directions). The X5IP
option card only supports the Full-Duplex mode. Pause operations can only be enabled
or disabled by provisioning point-to-point Ethernet services.
10/100/1000BASE-T(X)
Triple rate electrical Ethernet PHYs (10/100/1000BASE-T(X)) support Auto-negotiation
for Duplexity (Full/Half Duplex), Port Rate (10/100/1000 Mbit/s), and Pause operation
(None, Rx only, Tx only or both directions).
10/100BASE-T(X)
The Lucent NMS and the ITM-CIT can be used to manually override the
Auto-negotiation function. If this function is disabled, users can select a specific
operational mode such as port speed, Half/Full Duplex, and Flow Control.
Ethernet Mapping
The following sections describe the mapping schemes for VC3-Xv and VC12-Xv
Ethernet frames.
Mapping Ethernet frames into VC3-Xv: GFP Encapsulation
The X5IP option card supports the following mapping scheme for Ethernet frames.
• AU4 < - > VC4 < - > m *
• TUG3 < - > X *
• TU3 < - > X *
• VC3 < - > VC3-Xv < - > GFP < - > 802.3
The GFP encapsulation scheme follows the ITU-T G.7041 standard.
Mapping Ethernet frames into VC12-Xv: GFP Encapsulation
The X5IP option card supports the following mapping scheme for Ethernet frames.
• AU4 < - > VC4 < - > m *
• TUG3 < - > n *
• TUG2 < - > X*TU12 < - > X*VC12 < - > VC12-Xv < - > GFP < - > 802.3
Flexible Bandwidth Assignment
The X5IP option card supports flexible assignment of VC capacity to create various
size VCGs. The available capacity of one VC4 can be divided in three TUG3s. Each
TUG3 can be used a single VC3 or as 21 VC12s.
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Ethernet over SDH
365-312-807R7.2
Issue 4, May 2007