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© 2010 Datacom Systems Inc
FLOWcontrol™
VERSA
™
stream
Filtered VERSA stream ™ Network Ports — The inputs from SPAN ports, Ports
Mirrors or external tap devices can be directed from Network input ports to
Monitor ports using this screen. Network Inputs cannot be directed to another
Network port, because no Network Taps are created with the Filtered VERSA
stream ™ device. The network traffic received on any Network Port can be
directed to any available Monitor Port. See Example Filtered VERSAstream™ .
7.2.4.1.5.1 Example Filtered SINGLEstream
The Aggregation Configuration tab modifies the routes used by the Filtered
SINGLEstream™ and allows the user to direct the data stream copies of one side
of a conversation (e.g. Network Tap port 1A) to one Monitor port and the other
side of the conversation (e.g. Network Tap port 1B) to a different Monitor port -
in essence using the product as a non-aggregating tap.
Non-Aggregation Example:
Reduce the chance of oversubscribing
the throughput capacity of a a
monitoring tool. 100BaseT and
1000BaseT monitoring tools are rarely
if ever capable of accepting sustained
input at full line rate. Sending the
different data streams of the two
sides of a single duplex conversation
to different Monitor ports and thereby
to different NIC's on a multiple port
monitoring tool is a useful strategy for overcoming the inherent shortcomings of
monitoring tool throughput.
Direct copies of Inbound and Outbound network traffic to different monitoring
tool NIC's that analyze conversation flows. Tools of this type require the
Inbound and Outbound traffic copies to be received on separate NIC's.
The flow of network traffic in the diagram
above, can be replicated by the
Aggregation Configuration shown. Data
received on Network Port 1A is sent to
Network Port 1B (to complete the network
tap) and Monitor Port 5. Data received on
Network Port 1B is sent to Network Port
1A (to complete the tap) and Monitor Port
6. Monitoring devices connected to
Monitor Ports 5 and 6 receive only half of
the network conversation.
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