Preparing For Configurations; Limits On Sla Configuration - Raisecom ISCOM2600G-HI (A) Series Configuration Manual

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ISCOM2600G-HI (A) Series Configuration Guide
As a dynamic concept, it is a procedure from sending a detection packet to receiving the
packet. According to the definition of the operation, one operation test can contain multiple
detections (one test contains only one detection for the Echo operation).
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Supported SLA functions
Currently the ISCOM2600G-HI series switch supports the Layer 2 network delay and packet
loss rate tests.

9.4.2 Preparing for configurations

Scenario
The carrier and users sign SLA to guarantee that users can enjoy certain quality network
service. To perform SLA protocol effectively, carrier needs to deploy SLA feature test
performance on the device and the test result is evidence to ensure user's performance.
SLA chooses two testing nodes, configures SLA operation on one node, and schedules
executing it to implement network performance test between the two nodes.
Prerequisite
Deploy CFM between the tested devices.

9.4.3 Limits on SLA configuration

There are limits on SLA configuration.
For topology:
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For statistic values:
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SLA operation type
Loss Measurement (LM) operation: used to test packet loss rate
–
Delay Measurement (DM) operation: used to test delay and jitter
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Network performance test indexes
Delay: the period between receiving the packet by the receiver and sending the packet
−
by the sender
− Jitter: the interval for receiving two adjacent packets minus the interval for sending
these two adjacent packets
Packet loss rate: the ratio of the number of lost packets to the number of total sent
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packets, usually tested within throughput range
For 1:1 topology, the ISCOM2600G-HI series switch supports Up on both ends, Down
on both ends, or Up on one end and Down on the other end.
For 1:n topology, SLA configuration depends on different service instances.
In bandwidth statistics, the ISCOM2600G-HI series switch gathers statistics about
bandwidth based on Up MEP only.
Services packets to be taken statistics about for packet loss rate must be known packets.
The service packet VLAN and tested packet VLAN must be the same, and the service
packet CoS must be the same with tested packet VLAN. For Up MEP, the statistics result
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