Zyxel-communications Multi-service Access Platform MSAP2000 Manuel d'utilisateur Page 181

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7. Product Specification
MSAP2000 Technical Manual V3.0 7-74
7.26. Optical Gigabit Switch(OGS)
Overview
The Optical Gigabit Switch (OGS) provides Ethernet connection to
each node in a STM-4 Ring topology. OGS can be used with
SM4 module and connected by gigabit Ethernet backplane bus or
play as an aggregator to aggregate Ethernet traffic to BRAS.
Features
And
Benefits
Panel LEDS indicate status, faults, alarms, and network
connections.
Complies with IEEE 802.3
Simultaneously supports 1000BASE-LX/LH/TX/XD/ZX/ER1(2)
Supports 802.1d, 802.1P, 802.1q
Supports Port-base VLAN
Supports IGMP
Use of non-volatile memory devices for performance data
storage
Function Diagram
Application
The OGS can be used as the uplink interface in IP framework.
When SM4 Ring requires broadband service, OGS is
recommended to be used as the uplink interface to provide
enough bandwidth in SM4 ring.
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