Alcatel-Lucent 1643 AMS Applications And Planning Manual page 105

Product description
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. Other services can only
disable this feature.
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). Users can override the Auto-configuration
mechanism with fixed settings or trigger a new Auto-negotiation procedure.
10/100BASE-T(X)
The Lucent OMS 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 Schemes
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. The number of
virtual concatenated VC3 containers ranges from 1 to 3.
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
The GFP encapsulation scheme follows the ITU-T G.7041 standard. The number of
virtual concatenated VC12 containers ranges from 1 to 63.
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365-312-801R7.2
Issue 3, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
X5IP option card
4-25