Nortel Networks 3500 ユーザーズマニュアル

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2-64   Operation, administration, and maintenance (OAM) features
OPTera Metro 3500 Multiservice Platform    NTRN10AN    Rel 12.1   Standard   Iss 1   Apr 2004
flexible Ethernet access and network bandwidth allocation
ability to support enhanced and competitive SLAs
ability to support ICMP Ping
ability to support traffic management features such as static routing, load 
sharing, and Bandwidth Reservation Protocol
ability to support NE slot awareness
ability to support FPGA upgrades
ability to support software upgrades
transparent LAN service/layer 2 (TLS/L2) tunneling mode
optical Ethernet/Layer 2 (OE/L2) tunneling mode
point-to-point connections (in OE/L2 mode)
point-to-multi-point connections (in OE/L2 mode)
multi-point-to-multi-point connections
TD connectivity tests and internal card loopback tests
traffic filtering at ports that connect separate rings (NNI filtering)
redundancy between rings through trunk groups (NNI redundancy)
station over provisioning notification
save provisioning notification
2048 NNI filters 
Optical Ethernet / Layer 2 (OE/L2) on OPTera Packet Edge System
OPTera Packet Edge System provides configurable packet tunneling modes: 
transparent LAN service Layer 2 (TLS/L2) and Optical Ethernet Layer 2 
(OE/L2). The OE/L2 mode provides optimized traffic service through 
point-to-point and point-to-multipoint tunnels. You can configure your 
network from TLS/L2 to OE/L2 or from OE/L2 to TLS/L2 without impacting 
traffic.
For more information, see:
OPTera Packet Edge System Planning Guide, NTRN10YK
OPTera Packet Edge System OPTera Metro 3000 User Guide, NTN465YG