7. Operation and Maintenance
7-32 December 2002 9700-A2-GB20-20

For an IP Enabled DLCI, statistics are shown for last, minimum, average, and

maximum round trips, and for dropped SLV responses, for each of the seven

classes of service.

Latest RdTrip Latency Current round trip latency, measured in milliseconds, between the
FrameSaver unit and the device at the other end of the multiplexed
DLCI connection.
“--” appears if communication with the far-end device is not
successful.
Avg RdTrip Latency Average round trip latency, measured in milliseconds, between the
FrameSaver unit and the device at the other end of the multiplexed
DLCI connection.
Average round trip latency is measured every SLV sampling
interval and the average is computed (using packets with the
configured SLV Packet Size (bytes), Table4-5, Service Level
Verification Options) over the previous 15 samples. If SLV Packet
Size is changed, a new average is not available until a new sample
has been received.
“--” appears if communication with the far-end device over the
last 15 samples has not been successful.
Max RdTrip Latency Same as average (Avg RdTrip Latency), but storing the maximum
value of latency over the previous 15 samples.
“--” appears if communication with the far-end device over the
last 15 samples has not been successful.

Table 7-13. SLV Performance Statistics for IP Enabled DLCI (1 of 2)

Statistic What It Indicates
Far End IPAddr IP Address of the device at the other end of the DLCI
connection.
None appears if the FrameSaver unit has not communicated with
the other end, or if the device at the other end of the DLCI does
not have an IP Address configured.
Path Up Time The number of days, hours, minutes, and seconds since the last
transition of this DLCI from Inactive to Active.
Far End Circuit Number of the DLCI at the other end of the connection.
None appears if the unit has not communicated with the other
end.
SLM Poll Type The role played by the far-end FrameSaver in the collection of
latency and availability statistics.
Initiator – The far-end FrameSaver initiates the SLV packet used
for statistics collection.
Responder – The far-end FrameSaver returns the SLV packet
sent by the Initiator.

Table 7-12. SLV Performance Statistics for Multiplexed DLCI (3 of 3)

Statistic What It Indicates