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Director
4
Director Architecture
The following diagram shows a schematic view of the architecture of the Director device shown as a Matrix Switch with
ltering. The black dots indicate aggregating Matrix Switch connections between Network Ports and Monitor Ports.
Key:
Network or Span port
Monitor Port
Aggregating switch conection
Dim Alternate configurations for 10 GbE XFP ports
DNM with
6 in-line
network ports
DNM with
12 Span or
out-of-band
network ports
Four configurable
10GbE XFP ports
10 SFP monitor ports
Filters
n2.5
n2.4
n2.3
n2.2
n2.1
n2.10
n2.9
n2.12
n2.11
n2.8
n2.7
n2.6
n1.1
n1.3
n1.5
n1.7
n1.9
n1.11
n1.2
n1.4
n1.6
n1.7
n1.10
n1.12
t1.1
t1.1
t2.2t2.1t1.2
t1.2
t2.1
t2.2
m.1 m.2 m.3 m.4 m.5 m.6 m.7 m.8 m.9
m.10
Director internal architectureFigure 1:
Director can be viewed as a matrix switch with up to 28 inputs, or Network ports, and 14 outputs, or Monitor ports.
Any number of inputs can be directed to each of the outputs; Director aggregates the trafc from those Network ports
and sends them to the Monitor ports. For example, the diagram shows:
Trafc from the rst in-line Network link (n1.1-n1.2) is being directed to the rst SFP Monitor port (m.1)•
Trafc from two in-line Network links (n1.3-n1.4 and n1.7-n1.8) plus three Span Network ports (n2.3, n2.7, •
and n2.11) is being aggregated and directed to the second SFP Monitor port (m.2)
Trafc from one in-line Network link (n1.11-n1.12) is being regenerated to two SFP Monitor ports (m.9 and m.10)•
The trafc from the in-line Network links to the Monitor ports may include the trafc being received at the odd-
numbered Network port (at the left side of the diagram), at the even-numbered Network port (at the right side of the
diagram), or both; the diagram doesn't include this level of detail.
In addition, lters (shown at the bottom of the diagram) are congured independently for each Monitor port, one or
more lters per port, and applied on the aggregated trafc for that port. For example, the second SFP Monitor port
could have two lters, where one lter selects the TCP trafc from the two in-line Network links and the second lter
selects the UDP trafc from the three Span Network ports.