CANOGA PERKINS 9145E Network Interface Device Software Version 2.1 User Manual
Page 45
Diagnostics
9145E NID Software User’s Manual
Latency/Jitter Test
37
Minimum Latency (ms) - Time in ms for the shortest round trip.
Minimum Jitter (ms) - Smallest absolute time difference between 2 round trips.
Average Latency (ms) - Computed by adding all the round trip latencies and dividing by the number
of completed round trips.
Average Jitter (ms) - Computed by adding all the absolute time differences between successive
round trips and dividing by the number of completed round trips minus 1.
Maximum Latency (ms) - The highest time interval for a successful round trip.
Maximum Jitter (ms) - The highest absolute time difference between 2 successful round trips.
Far End PBit Sent - This is the programmed priority value entered.
Far End PBit Rcvd - This is the priority as it was received at the destination 9145/9145E.
Local PBit Sent - The programmed priority value is put back into the packet at the far end for the
return trip.
Local PBit Rcvd - This is the priority as it was received at the end of the Round Trip.
Far End DSCP Sent - This is the programmed DSCP.
Far End DSCP Rcvd - This is the DSCP that was received at the destination 9145/9145E.
Local DSCP Sent - The programmed DSCP value is put back into the packet at the far end for the
return trip.
Local DSCP Rcvd - This is the DSCP that was received at the end of the Round Trip.
Figure 4-3 Latency/Jitter Test Screen
Type the number of the function you wish to change, and press Enter. Once the settings have been
entered, select 12 and press Enter to begin or end testing. Press Esc to return to the Diagnostics menu.
Configuration items are as follows:
Canoga Perki ns Corp. Ethernet Network Int erface Devi ce 12-SEP-2008
Model 9145E-101-2-0 V02.10 F121 02: 59: 35
------------------------------------LATENCY/JITTER TEST----------------------------------
-
Test IP Addr/VLAN
0.0.0.0/0
Round Trip P ackets 0
Test Duration
00:00
Dropped Packets
0
Minimum Latency (ms) 0.000000
Mi nimum Jitter (ms) 0.000000
Average Lat ency (ms)
0.000000
Average Jitter (ms)
0.000000
Maximum Latency (ms) 0.000000
Maximum Jit ter (ms) 0.000000
Far End PBit Sent
0/R cvd ?
Local PBit Sent
?/R cvd 0
Far End DSCP Sen
0/R cvd ?
Local DS CP Sent
?/R cvd 0
1) To IP Addr
0.0.0.0
5) Packet Ti meout sec (1-10)
3
2)From IP Addr
Auto Sel ecti on
6) Packet Pri ority (0-7)
0
3) Test VLAN
0
7) Packet DSCP Code (0-63)
0
4) Test Packets per sec
1
8) Packet DF B it
C lear
9) Test Duration min:sec (0=forever)
0
10) Min Test Payload Size (40 - 1954)
40
11) Max Test Payload Size (40 - 1954)
40
12) St art/Stop Test
Select [1-12]:
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