Y.1564 is used to perform end-to-end Ethernet service activation tests (SATs). This section describes how to set up Y.1564 in your Metro Ethernet network.
The implementation of Y.1564 supports the following test types:
Layer 2 two-way testing.
Layer 3 two-way testing.
Layer 2 one-way testing.
Layer 3 one-way testing.
To set up Y.1564:
Set up a Y.1564 test. See Setting Up a Y.1564 Test.
Set up one or more Y.1564 services. See Setting Up a Y.1564 Service.
Before you run a one-way test, set up the SAT protocol (in SAT ▶ Protocol ▶ Configuration) so the devices that perform the one-way Y.1564 test can communicate.
After you complete these steps, run the test and view the results as described in Running a Y.1564 Test and Viewing Test Results.
Setting Up a Y.1564 Test
Run a Y.1564 test to verify that a network section or device meets a service level agreement (SLA) or Ethernet standards.
SAT Reporting automatically uploads Y.1564 test reports from the unit to a remote server (FTP, FTPS, SFTP, TFTP, or SCP). Automatic uploads allow you to view results without polling the server to confirm test completion.
For information about automating report uploads, see Setting Up SAT Reporting.
Note: Reports are available in text or XML format.
When you set up the test, configure the remote peer (Peer settings) and the test frame contents. For the full list of configurable elements, see “Y.1564 Test Configuration (SAT ▶ Y.1564 ▶ Configuration).”
For parameter and test definitions, see the ITU-T Y.1564 standard.
Note: The Cisco® Provider Connectivity Assurance Sensor GT/GT-S (formerly Accedian Skylight GT and GT-S Performance Elements) includes preconfigured Y.1564 loopbacks for Layer 2 or Layer 2 Accedian frames. For Layer 2 generic traffic or Layer 3 testing with UDP segments, configure a manual loopback on the peer unit to match the test traffic, with a swapping action on MAC addresses, IP addresses, and port numbers. You can configure the loopback from the OAM menu.
To set up a Y.1564 test
Choose SAT ▶ Y.1564 ▶ Configuration.
A summary of configured tests is displayed.
Click Add to create a test, or click the test Name to edit its settings.
Configure the test options and required fields, then click Apply.
For details about specific parameters, refer to the following tables.
Y.1564 Test Configuration (SAT ▶ Y.1564 ▶ Configuration)
Parameter | Description |
|---|---|
Test name | Name of the Y.1564 test. |
Test description | Description used to identify the test. |
Outgoing port | Port on which to send flows. |
Test to run
Parameter | Description |
|---|---|
Configuration step duration (seconds) | Duration of each step during the configuration test, in seconds. Range: 1 to 60 seconds. Note: This parameter is also used for the burst SLA test. |
Enable configuration test | Enables the policing test and step test under each configured service (traffic flow). Runs successive tests at rates of 25% CIR, 50% CIR, 75% CIR, 100% of CIR, CIR+EIR, and Policing. For Policing:
|
Enable parallel configuration test | Enables or disables the Parallel Service Configuration test.
|
Performance test duration (minutes) | Duration of the performance test, in minutes. Range: 1 to 1440 minutes. |
Enable performance test | Enables or disables the performance test. Configure at least one service when you enable the performance test. Note: The performance test runs at 100% CIR. |
Enable burst SLA test | Enables or disables the burst SLA test. (Disabled by default) |
Delay Measurement Type | Choose one way delay or two way delay. For one-way delay measurement, you must enable the SAT protocol (SAT ▶ Protocol ▶ Configuration) on both devices performing the Y-1564 test. |
Remote unit settings
Parameter | Description |
|---|---|
Type | Type of test traffic:
Note: Layer 2 generic applies only to two-way measurements. |
MAC destination | Peer MAC address. Applies to Layer 2 and Layer 3 generic traffic only. Note: Layer 3 generic traffic is available for the RFC-2544 traffic generator and test suite. It is not available for Y.1564 SAT. |
Y.1731 MEG level | Maintenance Entity Group level. Range: 0–7. Note: Applies to Layer-2 traffic only. For details, see ITU-TY.1731. |
Destination IP address | Remote unit interface IP address. Applies to Layer 3 traffic only. |
DSCP | DiffServ Code Point value set in generated packets. Applies to Layer 3 traffic only. |
Source port | Near-end UDP port used to generate PDUs. Applies to Layer 3 traffic only. |
Destination port | Far-end UDP port number associated with the IP address of the unit that will receive, process, and display traffic statistics and report. Applies to Layer 3 traffic only. Note: For proper reporting, configure a destination port in the range 0 to 65535. Do not use 8793 (Accedian proprietary port number). For more information, see “Network Requirements — TCP/UDP Ports.” A destination port cannot be configured as the UDP port here if it is already used for any of these features:
|
Setting Up a Y.1564 Service
After you set up a Y.1564 test, you must define one to eight services (traffic flows) for testing.
The system reserves required resources at the start of a Y.1564 test, whether services run in parallel or sequentially. The total bandwidth allocated across services cannot exceed the port bandwidth. If you enable policing, reserve an additional 20% of the port bandwidth. For example, if you configure eight services on a 1 Gbps link with policing enabled, allocate no more than 800 Mbps across the services. The test might fail if the combined allocation exceeds this limit.
For parameter and test definitions, see the ITU-T Y.1564 standard.
To set up a Y.1564 service
Choose SAT ▶ Y.1564 ▶ Configuration.
A summary of defined tests is displayed.
Click the test Name to display the test details and the service list.
In the service list, click the service Name.
The Y.1564 [Service_Number] service configuration page appears.
Enter values in the required fields, then click Apply.
For details about specific parameters, refer to the following table.
Y.1564 service configuration (SAT ▶Y.1564 ▶Configuration)
Parameter | Description |
|---|---|
Enable service | Enable or disable the service for this Y.1564 test. |
Service name | Name of the Y.1564 service. |
Test configuration
Parameter | Description |
|---|---|
Policing test enabled | Enable or disable testing above the CIR:
|
Step test enabled | Enable or disable running successive tests at rates of 25% CIR, 50% CIR, 75% CIR, 100% CIR, and CIR+EIR. |
Availability enabled | Enable or disable availability measurements based on the configured frame loss ratio. |
Bandwidth profile
Parameter | Description |
|---|---|
CIR (in Mbps) | The committed information rate (CIR) is the maximum sustained information rate that the network commits to transfer while meeting the SLA. The CIR and EIR values specified in the bandwidth profile are used by the Y.1564 tool to define the Configuration, Performance, and Policing Tests to be executed. Range: 0 to 1250 Mbps, in steps of 0.125 Mbps. |
Committed Burst Size (in KiB) | Maximum burst size, in kibibytes, for a burst of frames transmitted at port speed while remaining CIR-conformant. Range: 0 to 10,000 KiB. |
EIR (in Mbps) | The excess information rate (EIR) is the maximum sustained information rate, above the CIR, at which traffic is carried through the network if resources are available. The CIR and EIR values specified in the bandwidth profile are used by the Y.1564 tool to define the Configuration, Performance, and Policing Tests to be executed. Range: 0 to 1250 Mbps, in steps of 0.125 Mbps. |
Excess Burst Size (in KiB) | This parameter is not currently used and is grayed out. |
Frame size type | Frame size type used for the test:
|
Frame size (bytes) | Frame size for the test traffic. Note: This field is available only when Frame Size Type is set to Fixed. Valid values range from 64 to 10240 bytes. |
User-defined (octets) | User-defined packet size for the test traffic. Set Frame size type to EMIX to use this parameter. Range: 64 to 10240 bytes |
Sequence of sizes | EMIX packet sizes and the send order. Available values:
Default value: abceg |
Service Acceptance Criteria
Parameter | Description |
|---|---|
Frame Transfer Delay (in μs) | For two-way delay measurements, the delay threshold below which the test passes. Expressed in microseconds. |
Frame Delay Variation (in μs) | For two-way delay variation measurements, the delay variation threshold below which the test passes. Expressed in microseconds. |
Frame Loss Ratio | Ratio threshold below which the test passes. |
M Factor | Margin factor added to the acceptance criteria in the policing test to account for the CBS and EBS effect on the total rate. The policing test passes if IR-T ≤ CIR + EIR + M. Where:
Default value: 1 Mbps |
Frame Transfer Delay Type | Select whether acceptance criteria are based on maximum (max) or average (avg) frame transfer delay. |
Frame Delay Variation Type | Select whether acceptance criteria are based on maximum (max) or average (avg) frame delay variation. |
MAC Settings (Layer 2 Traffic Only)
Parameter | Description |
|---|---|
MAC destination | For each service, sets the destination MAC address and overwrites the global destination MAC address of the Y.1564 test. |
Overwrite per Test Destination MAC address | Enables overwriting the global destination MAC address of the Y.1564 test. |
Y.1731 MEG level | For each service, sets the Y.1731 MEG level and overwrites the global Y.1731 MEG level of the Y.1564 test. |
Overwrite per test MEG level | Enables overwriting the global Y.1731 MEG level of the Y.1564 test. |
IP Settings (Layer 3 Traffic Only)
Parameter | Description |
|---|---|
Destination IP address | For each service, sets the destination IP address and overwrites the global IP address of the Y.1564 test. |
Overwrite per test Destination IP address | Enables overwriting the global destination IP address of the Y.1564 test. |
DSCP | For each service, sets the DSCP and overwrites the global DSCP of the Y.1564 test. |
Overwrite per test DSCP | Enables overwriting the global DSCP of the Y.1564 test. |
VLAN Settings
Parameter | Description |
|---|---|
Enable VLAN 1 header | Encapsulates frames with one VLAN header. Note: After you enable VLAN 1 header, packet size increases by 4 bytes. After you enable VLAN 2 header, packet size increases by 8 bytes. Examples:
|
VLAN 1 ID | First VLAN ID used to encapsulate all test frames. |
VLAN 1 priority | First VLAN priority bits. Applies only when VLAN 1 header is enabled. |
VLAN 1 Ethernet type | First VLAN protocol ID. Options include:
|
VLAN 1 CFI | First VLAN Canonical Format Indicator (CFI). Applies only when VLAN 1 header is enabled. |
Enable VLAN 2 header | Encapsulates frames with two VLAN headers (Q-in-Q). VLAN 1 must be enabled to use two VLAN headers. Note: After you enable VLAN 1 header, packet size increases by 4 bytes. After you enable VLAN 2 header, packet size increases by 8 bytes. Examples:
|
VLAN 2 ID | Second VLAN ID (inner VLAN) that encapsulates all test frames. Applies only when VLAN 2 header is enabled. |
VLAN 2 priority | Second VLAN priority bits. Applies only when VLAN 2 header is enabled. |
VLAN 2 Ethernet type | Second VLAN protocol ID. Options include:
|
VLAN 2 CFI | Second VLAN Canonical Format Indicator (CFI). Applies only when VLAN 2 header is enabled. |
Running a Y.1564 Test and Viewing Test Results
After you set up a Y.1564 test, run it and view the report. Each run generates a separate report. Create a new report each time you run the test.
To run a Y.1564 test
Choose SAT ▶ Y.1564 ▶ Results.
A summary of test reports is displayed.
Click Start to create a new report.
Complete the required fields, then click Apply.
For details about specific parameters, see the following tables.
Y.1564 Service Activation (SAT ▶ Y.1564 ▶ Results)
Parameter | Description |
|---|---|
Name | Name assigned to the test report. |
Status | Current status of the test. Possible values:
|
Description | Description used to identify the test. |
Y.1564 Report Configuration (SAT ▶ Y.1564 ▶ Results)
Parameter | Description |
|---|---|
File name | Name assigned to the test report file. |
Description | Test description. |
Technician name | Name of the individual who executed the test. |
Test | Test configuration used for this report. |
Special note | Additional information about the test. |
To view, edit, or export a Y.1564 test report
Choose SAT ▶ Y.1564 ▶ Results.
A summary of test reports is displayed.
To view results, click the report Name.
To stop a running test, click Stop.
To edit a report, click Edit.
To export a report, click Export.
For details about specific parameters, see the following tables.
Y.1564 Test Configuration Results (SAT ▶ Y.1564 ▶ Results)
Parameter | Description |
|---|---|
Name | Name of the Y.1564 service being tested. |
25% CIR 50% CIR 75% CIR 100% CIR CIR+EIR Policing Performance | Current status of the test. Possible values:
|
State | Enabled or disabled state of a service within this Y.1564 test. |
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