Avaya G250 Administration page 349

Table 48: Detailed CLI output per RTP session (continued)
Field
Max-Jbuf-Delay
Received RTP:
Packets
Loss
loss%
#loss-events
Avg-loss
RTT
rtt ms
#rtt-events
Avg-RTT
Jitter
jitter ms
#jitter-event
Avg-Jitter
TTL (last/min/max)
Duplicates
Label Description
The maximum jitter buffer delay during
33
the session.
The total number of received packets.
34
The last sampled value of network RTP
35
packet loss.
The network RTP packet loss event
36
counter.
The average of all network RTP packet
37
loss values during the session.
The network round trip time (RTT). The
38
RTT is calculated upon RTCP packet
reception.
The network RTT event counter.
39
The average of all network RTT values
40
during the session.
The network jitter at the RTP receiver.
41
Combined with long RTT, a large jitter
value may indicate WAN congestion.
The RTP receiver network jitter event
42
counter.
The average of all network jitter values
43
during the session.
The last value of TTL, minimum value
44
of TTL, and maximum value of TTL
sampled during the session. TTL
changes during a session may indicate
route flaps in the IP network.
This counter increments each time two
45
consecutive RTP packets with the
sample RTP sequence number are
received. A large number of duplicates
may indicate problems in the Layer2/
Ethernet topology (for example, loops).
Configuring and analyzing RTP statistics
From the CLI
example
Max-Jbuf-Delay 60mS
Packets 9236
Loss 0.0%
Loss 0.0% #0
Avg-Loss 0.0%
RTT 604mS
RTT 604mS #38
Avg-RTT 376mS
Jitter 0mS
Jitter 0mS #0
Avg-Jitter 0mS
TTL(last/min/max)
63/63/63
Duplicates 0
Issue 3 February 2007
35
#0
36
38
#38
39
41
#0
42
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