Avaya VoIP Monitoring Manager Reference
87
M
Maximum Jitter: The Maximum Jitter metric represents the maximum value of jitter seen in the
RTCP reporting interval. This metric would be useful to identify transient spikes of jitter in
a session. This metric is a 32-bit unsigned integer. The unit is defined by the profile of the
RTP session.
Media Encryption: The Media Encryption metric indicates whether media encryption is enabled
or disabled for the RTP session. The Media encryption metric is an enumerated type
metric. The possible values are: 0 = No encryption, 1 = AEA1.2, 2 = AES, 3-255 =
Reserved for future use.
N
Number Sequence Falls: The number of sequence fall metric represents how many times during
the RTP session there was at least one packet that was out of order.
Number Sequence Jumps: The number of sequence jump instances metric represents how
many times during the reporting interval there was at least one packet which was lost.
NumberSeqFalls: Refer to Number Sequence Falls.
NumberSeqJumps: Number Sequence Jumps.
O
Octet: The Octet column in the Session Table indicates the size of the packets in octets.
P
Packet: A packet is the logical grouping of information that includes a header containing control
information and (usually) the user data. The term packet is most often used to refer to the
application layer data units.
Parent Endpoint: The terms parent and child endpoints are purely for describing the way
endpoints are displayed in the Results List. A parent is like the branch in a tree view. A
child is like a leaf in a tree view. The same endpoint can be shown as both a parent and a
child. A parent endpoint is any endpoint listed as a result of a search. You click on the
expanding key icon positioned in the far left column to expand the parent endpoint and
show the child endpoints.
ParticipantID: The ParticipantID column assigns a unique identifier to each participant in the
exported file. Each exported session has two participants. The exported data contains
three sets of data. This data is listed in three separate tables that are separated by a
blank row: Session Table, Time-varying Data Table and the TraceRoute Table. For every
session a participant was involved in there will be a unique pair: SessionID and
ParticipantID, enabling you to associate the session data, time-varying data and the trace
route data as belonging to that participant in a specific session. Use the ParticipantID to
identify the participant in each table to analyze the data.
Payload: Payload refers to the contents of a packet. In RTP it is encoded audio that is the user
data of a packet. The payload identifies which codec is being used.
Perceived Delay: Perceived delay is the total effect RTT and Jitter have on a phone user's
conversation.
(60 paginas)
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