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22 C1640M-B (3/06)
ENDURA CORE BLOCK
The Core Block is functionally responsible for Network layer 3 tasks, discovery, authentication, and security, and interconnects the A and B blocks
(refer to Figure 5).
The Core Block is summarized as follows:
• There is only one Core Block for each Endura network.
• The Core Block contains the SM5000 and the redundant SM5000, which provides authentication and security for Endura network.
• The Core Block is on its own VLAN.
• The Core Block includes the core layer 3 switch and any necessary subcore switches.
Figure 5. Core Block: Authentication and Security
Live video streams flow from the encoder, and playback video streams flow from the NVR5100. Both streams flow through the Core Block to the
B Block (refer to Figure 6). The Core Block must be able to handle maximum anticipated system usage.
Figure 6. Video Traffic Path Through the Core Block
LAYER 3 SWITCH
SM
INTERFACES WITH
THE A BLOCK
INTERFACES WITH
THE B BLOCK
CORE BLOCK
SM
NVR
SEB
ENCODER
ENCODER
VCD
WS
DECODER
NVR 2
SEB 2
ENCODER
ENCODER
VCD
WS
DECODER
C BLOCK
A BLOCK B BLOCK
A BLOCK
LAYER 2 SWITCH
A BLOCK
LAYER 2 SWITCH
CORE BLOCK
LAYER 3 SWITCH
REDUNDANT SM
B BLOCK
LAYER 2 SWITCH
DISPLAY
VIDEO OUT
DISPLAY
VIDEO OUT
DISPLAY
VIDEO OUT
DISPLAY
VIDEO OUT
DISPLAY
VIDEO OUT
DISPLAY
VIDEO OUT
B BLOCK
LAYER 2 SWITCH
LEGEND:
PLAYBACK VIDEO TRAFFIC
LIVE VIDEO TRAFFIC