COMNET III

Chapter 2. Nodes
2.13 Output Buffer Use By Port Report
NODES: OUTPUT BUFFER USE BY PORT
REPLICATION 1 FROM 0.0 TO 300.0 SECONDS
NODE: PACKETS BUFFER USE (P=PKTS, B=BYTES)
CONNECTED LINKS ACCEPTED BLOCKED AVERAGE STD DEV MAXIMUM P/B
______________________ ________ _______ __________ _________ _________ ___
Message Workstation:
Ethernet Hub 186 0 0 10 1040 B
Session Server:
Ethernet Hub 1076 0 1 34 1431 B
Application Workstation:
Ethernet Hub 654 0 3 131 12520 B
Switch:
Call Link 4 22 0 0 2 530 B
Call Link 1 3536 0 1 9 232 B
Call Link 2 699 0 0 1 88 B
Call Link 3 326 0 0 10 368 B
Ethernet Hub 775 0 0 1 112 B
Application Server:
Ethernet Hub 673 0 2 109 10840 B
The Output Buffer Use By Port Report represents a summary of each node’s port output
buffer usage during the simulation. The node is connected to links via an interface port.
Each port has an output buffer, the size of which is defined on the port (edit the arc that
connects the link to the node to see this). The amount of output buffer space on the node is
the sum total of all the port output buffer spaces. In addition, the node has an upper maximum
on the total amount of output space that can be is use at one time across all ports. This is
defined on the node parameters screen.
When a packet is routed across the node it must be placed into an output buffer port. First
the port output buffer is checked to see if there is space. If so, then the node output limit is
checked to see if the node in total has space. If both tests succeed then the packet is placed
into the output buffer.
Node Name
Connected Links
Packets Accepted
Packets Blocked
The name of the node sending packets.
The name of the link whose output port is being reported.
The number of packets routed into the port output buffer.
The number of packets blocked at the port output buffer.
Buffer Use - Average, Std Dev, Max
The average, standard deviation and maximum amount of buffer space
in use at the port output buffer in either packets or bytes.
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