Point-to-point LAN connection
...................................................................................................................................................................................................................................
The point-to-point LAN connection is used to interconnect two sites of a customer
each of which has a LAN interface. Another application is the interconnection of the
sites of two service providers that have Ethernet interfaces.
Some dedicated SDH bandwidth is allocated to the connection between both end
points. The virtual concatenation mapping allows the operator to assign an optimized
SDH bandwidth. Such an application can effectively be realized with Metropolis
®
AMU using one of the private line option cards which provide the GFP and LAPS
Ethernet mapping schemes and the LCAS protocol (please refer to
“Ethernet mapping schemes” (p. 3-24)
and
The following figure shows an example of a point-to-point LAN connection:
The ESW4_E14 option card supports point-to-point LAN connections with Ethernet
switching. This allows statistical multiplexing and as a result, higher bandwidth
efficiency. The Metropolis
®
AMU1m/1o version with ESW4_E14 and EPL4_E14
option cards presents a very efficient way for full throughput Gigabit Ethernet access at
low costs. The Gigabit Ethernet connection can be transported using 2 STM-4 links
and virtual concatenation and LCAS distributed over both links.
SDH
Pub lic Netw ork
Metropolis
Metropolis
AMU
(with option card:
X8PL or
)
EPL4_E14 or
EPL4_132_75
Ethernet o ver VCn-Xv
(GFP/LAPS/LCAS)
End-User A
Site 1
End-User A
Site 2
Ethernet
Ethernet
AMU
(with option card:
X8PL or
)
EPL4_E14 or
EPL4_132_75
Planning Network Applications
...................................................................................................................................................................................................................................
365-312-847R4.0
Issue 4, November 2006
Lucent Technologies - Proprietary
See notice on first page
4-23