Network Assistant
Monitoring and Troubleshooting a Wired LAN
77
1. In the 8021Q Settings section, do the following:
a) Check Enable 802.1Q to select 802.1Q tagging
mode.
This setting denotes a new frame format
whereby every packet that is transmitted by the
instrument contains an extra four bytes in the
header to include fields for the VLAN ID and a
priority level for the frame (see next two items).
On the receive side, the instrument extract and
process this information from incoming packets.
b) Supply the VLAN ID (values range from 1 to
4095)
c) Set Priority: select a value between 0 and 7 (low
to high) to specify a priority level for the frame.
2. In the TOS (Type of Service) section, select one of the
following:
• TOS with IP Precedence then check one of the
type of service parameters (Delay, Throughput,
Reliability, or Cost) and select a priority in the IP
Precedence box.
• TOS with DSCP then supply a value for DSCP
(Differentiated Service Code Point).
3. Tap
to save your settings. The instrument
restarts its tests with the new configuration.
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