Nortel Networks OPTera Metro 3500 - Manual (Page 42)

2-4 Operation, administration, and maintenance (OAM) features
OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
Figure 2-1
Gigabit Ethernet drop and continue application
EX1543p
Because the connection is unidirectional the other direction (timeslot) can be
reused for another circuit. Unidirectional drop & continue on OPTera Metro
3500 can be used to provide applications such as; video broadcast,
Multi-Media conferencing and Distance Learning, for residential, business,
research and educational services.
UPSR
Node 6 Node 5
Node 2
Node 1 Node 4
Node 3
Video
distribution
Head End
2x GigE/FC
P2P
mapper
2x GigE/FC P2P mapper
OPTera Metro 3500
UPSR
1WAYPR
connection used
VCAT (STS1-nv or
STS3c-nv) and CCAT
cross-connects
supported. Time slots
re-used around ring.
Legend