CANOGA PERKINS 9145E NID Software Version 3.1 - Manual (Page 58)

Diagnostics 9145E NID Software User’s Manual
PING Generation
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5. Packet Timeout sec (1 - 10) Sets the packet timeout for this test, from 1 to 10 seconds. If a
response is not received within this time limit, the packet will be considered dropped.
6. Packet Priority Sets the packet Priority Code Point (PCP) from 0 to 7, with 0 being the highest
priority.
7. Packet DSCP Code (0 - 63) The Differentiated Services Code Point (DSCP) code used to classify
packets in a Diffserv network. Other network devices that support Diffserv use the DSCP code in
the IP header to select a per hub behavior (PHB) for the packet and provide the appropriate QoS
treatment.
8. Packet DF Bit The DF (Don’t Fragment) Bit is an identifier in the packet that determines if this
packet can be fragmented to smaller packets.
9. Test Duration min:sec Sets the amount of time the test will run in minutes and seconds. A setting
of 0 will allow the test to run forever.
10. Min Test Payload Size (40 - 9950) Sets the minimum test size, in bytes. The 9145E sends test
packets ranging in size from the minimum packet setting to the maximum packet setting (sweep), if
they are different. The minimum payload size must be less than, or equal to, the maximum payload
size. If a sweep is being performed, the size will be incremented by 1 byte for each message sent
until the maximum test payload size is reached, the decremented by 1 byte for each message sent
until the minimum payload size is reached, then repeated as necessary.
11. Max Test Payload (40 - 9950) Set the maximum test payload size, in bytes. The maximum
payload size must be equal to, or greater than, the minimum payload size.
NOTE: If the DF Bit is clear, the actual maximum packet size is 8192. The DF Bit
must be set for oversized packets greater than 1518 (payload size greater
than 1472) to be sent or the packet will be fragmented (sent as multiple
packets of size 1518).
12. Start/Stop Test Start and Stop testing.
4.3 PING Generation
The PING Generation screen (also available from the Utility menu) is used to determine if a
destination is reachable from the NID. From the Diagnostics menu, type 3 and press Enter. The
PING Generation screen (Figure 4-4) opens.
1. To enter a Ping to address, on the PING Generation screen, type 1 and press Enter. Type the
destination IP address and press Enter.
2. To change the Ping from Address, type 2 and press Enter. Press the Space bar to select Test IP (if
available), Mgr IP, Aux IP, or Auto Selection, and then press Enter. The Auto Selection setting will
start first with the Test IP.
If the Ping to Address is in the Test Network Subnet, the Test IP will be used in the ping
packet. If the Test IP is not available or the Ping to Address is not in the Test Network
Subnet, the Aux IP is checked. If the Aux IP is not available or the Ping to Address is not
the Aux Network Subnet, the Manager IP is used. Any address can be used with the Man-
ager IP since it has access to the Default Gateway.
If the Ping from Address is specified as the Test IP or the Aux IP, and the Ping to Address
is not located in the matching subnet, the destination is unreachable. An error message is
displayed when the Start Pinging command is given.
3. To enter a Ping Count, type 3 and press Enter. Type a value from 1 to 255 (0 = forever). and press
Enter .