120
Step Command
Remarks
5.
(Optional.) Specify the
destination port of the UDP
packets.
destination port
port-number
By default, the destination port
number is 33434.
The destination port number must
be an unused port number on the
destination device, so that the
destination device can reply with
ICMP port unreachable messages.
6.
(Optional.) Set the payload
size for each UDP packet.
data-size
size
The default setting is 100 bytes.
7.
(Optional.) Enable the
no-fragmentation feature.
no-fragment enable
By default, the no-fragmentation
feature is disabled.
8.
(Optional.) Set the maximum
number of consecutive probe
failures.
max-failure
times
The default setting is 5.
9.
(Optional.) Set the initial TTL
value for the UDP packets.
init-ttl value
The default setting is 1.
10.
(Optional.) Specify the output
interface for the UDP
packets.
out interface
interface-type
interface-number
By default, the output interface for
UDP packets is not specified. The
NQA client determines the output
interface based on the routing table
lookup.
11.
(Optional.) Specify the
source port number of the
UDP packets.
source port
port-number
By default, no source port number is
specified.
12.
(Optional.) Specify the
source IP address of the
UDP packets.
•
Use the IP address of the
specified interface as the
source IP address:
source interface
interface-type
interface-number
•
Specify the source IP
address:
source ip ip-address
By default, the source IP address of
the UDP packets is the primary IP
address of the output interface.
If you execute the
source ip
and
source interface
commands
multiple times, the
most recent
configuration
takes effect.
The specified source interface must
be up. The source IP address must
be the IP address of a local
interface, and the local interface
must be up. Otherwise, no probe
packets can be sent out.
Configuring the voice operation
CAUTION:
To ensure successful voice operations and avoid affecting existing services, do not perform the
operations on well-known ports from 1 to 1023.
The voice operation measures VoIP network performance.
The voice operation works as follows:
1.
The NQA client sends voice packets at sending intervals to the destination device (NQA
server).
The voice packets are of one of the following codec types:
{
G.711 A-law.
{
G.711 µ-law.
