CANOGA PERKINS 9145E NID Software Version 3.0 - Manual (Page 63)

Diagnostics 9145E NID Software User’s Manual
Throughput Test
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4.6.2 Service Availability Monitoring (SAM)
SAM is the percentage of time a given service instance is available to the customer for use in a
given time period. SAM uses a frame loss metric to determine the state transitions between
'available' and 'unavailable'. Key performance parameters with SAM that can be monitored
include:
• Network Availability
• Directional Frame Loss
• Lost Remote Frame Loss ratio Granularity
• Directional Loss Measurement (two methods)
• Test Packet Content Frame Loss Measurement
• Out-of-Band Frame Loss Measurement
4.6.3 Protected Link Performance Monitor (PLPM)
Protected Link Performance Monitoring (PLPM) is a feature that allows two 9145E NIDs that are
deployed on a protected link to be able to participate in Performance Monitoring (PM) and
Service Availability Monitoring (SAM) testing. PLPM will only be available on high end 9145E
NIDs. The two 9145Es are deployed on links that belong to the same Link Aggregation Group
(LAG).
4.7 Throughput Test
The on demand throughput allows you to measure throughput between two 9145Es by sending
synthetic Transport Control Protocol (TCP) or User Datagram protocol (UDP) frames from one
NID to the other on a specific Ethernet Virtual Connection (EVC). The user can initiate the test
any time from one 9145E to another 9145E on the remote side. The initiating 9145E will first
send an invitation to the target 9145E. As soon as the target 9145E accepts the invitation, the
initiating 9145E will start sending test data packets to the target 9145E at a user specified data
rate, test duration and data type. The target 9145E counts the receiving test data packets and
sends back the statistical result to the initiating 9145E when the test duration is over. The
initiating 9145E calculates the throughput based on the partner's report and displays on the user
interface. Packet generation rate can be up to 99% of the line rate.
Throughput test data packets can be untagged, single tagged or double tagged. Packet size will
be a fixed 128 bytes, including VLAN tags and CRC. The network may add or remove VLAN
tags, so actual packet size received may be less or more than 128 bytes. The 9145E will use a
signature in synthetic throughput frames to distinguish them from regular traffic. mode.
NOTE: To enable Throughput Measurement contact Canoga Perkins Tech Support
for a license key. Be sure to have the Feature name and 9145E Serial
number available.