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