OfficeServ 7200 System Description
© SAMSUNG Electronics Co., Ltd.
4-5
4.3 Data Functions
The OfficeServ 7200 functions as a router, switch, performs security functions, or serves as
a data network application or data access interface.
4.3.1 Switches
Managed/Unmanaged Switch
The switch is operated as a managed switch if the WIM is mounted on the Slot1 and
the LIM/PLIM is mounted on the Slot 2.
The PLIM2 is always operated as an unmanaged switch, regardless of the WIM.
The GPLIMT is always self-operated as a managed switch, regardless of the WIM.
The switch performs the function of the layer 2 Ethernet switch as well as the Learning
Bridge function based on the MAC address filtering and forwarding algorithm.
The switch supports the full duplex mode by the 10/100 BASE-T auto detection and
provides 16 switch ports per switch card.
802.1d Spanning Tree
The switch configures and processes the forwarding tree based on the spanning tree
algorithm to prevent a packet forwarding loop in the switch.
802.1p Packet Priority
The switch extracts the priority field from the Ethernet frame configured according to the
802.1p specification standard, and discriminatively processes the frame according to the
priority of the specified operation standard.
The packets are categorized into emergent packets and non-emergent packets and are then
processed.
VLAN
The Virtual Local Area Network (VLAN) groups the related equipment by the work group
according to the LAN operational policy regardless of the location of the user equipment.
The VLAN also processes switching for the work groups. The VLAN removes the effects
of unnecessary broadcasting packets and configures a stable switching subnet only for the
corresponding group by separating and processing the group in the virtual LAN.
Accordingly, the switch can provide the differentiated QoS services and the VLAN can be
configured based on the switch port and MAC address.
The system automatically configures the VLAN for the IP telephone, signal process
gateway, media gateway, and UMS required for services of the OfficeServ 7200, and
performs the QoS process. The OfficeServ 7200 provides 32 VLAN groups.
