NEC UNIVERGE SV9100 General Description Manual page 114

Issue 2.0
Each site requires a GPZ-IPLE daughter board and SD-B1 (4GB) card installed on its
GCD-CP10 blade. The GCD-CP10 blade at each Remote Site must have the same
system data as the Main Site GCD-CP10 blade. The Main Site automatically uploads
the system data to Remote Sites anytime the data is changed.
The main site requires a proper SV9100 NETLINK NODE license for each remote
site.
When communication failure occurs between the Main Site and any Remote Site,
The Main Site GCD-CP10 blade automatically changes to survival mode and
operates as a stand-alone system. If multiple Remote Sites are installed, a Remote
Site can be assigned as a temporary Main Site to control remaining connected sites.
SV9100 PoE Gigabit Switch
The NEC PoE Gigabit Switch card (GSWU) is a fully managed switch which brings
gigabit speeds to users while adding a whole new level of intelligence and security to
networks.
The eight 10/100/1000 Mbps ports enable users to take advantage of the Gigabit
Ethernet interfaces. The NEC PoE Gigabit Switch Card supports the UNIVERGE
SV9100 and SV8300 systems.
All user ports can support up to Gigabit Ethernet and may support the primary Layer
2 protocols also, with an emphasis on QoS features such as 802.1p and Diffserv.
The GCD-ETIA blade has eight RJ45 ports for 10BASE-T, 100BASE-TX and
1000Base-T along the front. The GCD-ETIA design is based on one card and one
software build. However, all the cards in the system are managed as a Master/Slave
configuration. The Master provides full distributed Layer 2 management to all
Ethernet Switch cards in the system.
The GCD-ETIA can be a standalone blade providing 8 Gigabit Ethernet PoE ports.
However, the real advantage with this blade is that additional blades can be "stacked"
by external "daisy chain" connections to provide up to 76 contiguous ports (all on the
same managed domain/network). Below are the primary features of the card set.
Switches, unlike hubs, use microsegmentation to create collision domains, one per
connected segment. This way, only the Ethernet devices which are directly
connected via a point-to-point link, or directly connected hubs are contending for the
medium. By eliminating collisions, full-duplex point-to-point connections on the
switch are possible.
When multiple blades requiring Ethernet data connections are installed in a
UNIVERGE SV9100 chassis, the GCD-ETIA can provide a neat and simple
installation.
The GCD-ETIA is an in-skin, fast Ethernet switching hub unit that provides the
following services:

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NetLink Multi-SIP Carrier
Multiple SIP Trunk carriers can be utilized when NetLink is configured.
Eight 10/100/1000 Gigabit Ethernet ports
Features