Related information
Please refer to “Virtual concatenation” (p. 11-11) for more detailed information.
LAN interfaces
1643 AM and 1643 AMS support up to four 10/100BASE-T LAN interfaces, as part of
the TransLAN
®
Ethernet SDH Transport Solution, when the X4IP option card is used.
1643 AM and 1643 AMS support up to eight Ethernet interfaces in Private Line mode,
when the X8PL option card is used. The X8PL board is a point-to-point Ethernet
solution without any switching capabilities. The Ethernet ports are directly connected
to the virtual concatenation groups (VCGs o flexible SDH Channel TTPs).
Main features of the X4IP and X8PL options cards
The following table lists the main features and differences of the two option cards
X4IP and X8PL which can be used for Ethernet applications:
X4IP X8PL
4 ports 8 ports
provides a Layer 2 switch no switch
supports advanced networking applications
like ring connections or point-to-multi-
point connections
cost optimized option card for
point-to-point applications
no LCAS (Link capacity adjustment
scheme) support
supports the LCAS (Link Capacity
Adjustment Scheme) protocol (please refer
to “Link Capacity Adjustment Scheme
(LCAS)” (p. 11-12))
EoS (Ethernet over SDH) mapping or GFP
(Generic Framing Procedure)
GFP or LAPS (Link Access Procedure
SDH) (please refer to “Ethernet mapping
schemes” (p. 11-42))
LAN and WAN ports and VLAN
A VLAN can contain multiple LAN ports and multiple WAN ports.
Ethernet Overview
Ethernet over SDH
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11-8
Alcatel-Lucent - Proprietary
See notice on first page
365-312-801R7.2
Issue 3, May 2007
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