Configuring IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) Operations

This module describes how to configure an IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) operation to gather the following performance measurements for Ethernet service:

  • Ethernet Delay

  • Ethernet Delay Variation

  • Ethernet Frame Loss Ratio

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.

Prerequisites for ITU-T Y.1731 Operations

IEEE-compliant Connectivity Fault Management (CFM) must be configured and enabled for Y.1731 performance monitoring to function.

Note

Y1731 is supported on Port Channel interfaces.

Restrictions for IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731)

  • SNMP is not supported for reporting threshold events or collecting performance statistics for IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) operations.

    SNMP is partially supported; the results for DM/LM can be polled for some attributes. However MIB support for all parameters is not supported.

  • Continuity Check Message (CCM)-based dual-ended Ethernet frame loss operations are not supported.

  • In a single-ended Ethernet operation, performance measurement statistics can be retrieved only at the device on which the sender Ethernet Connectivity Fault Management (CFM) Maintenance End Point (MEP) is configured.

  • To avoid losing the CoS value configured on the frames, do not configure rewrite on the EFPs throughout the Layer2 circuit. The CoS value is preserved, if the Y.1731 frames are marked with specific CoS value.

  • CFM over cross-connect on the routers works only if the control-word is configured. To start DM timestamping, switch ON the control-word if the remote end is not switched ON.

  • To avoid errors in RX and TX timestamping, ensure to have Y1731 sender as PTP master, and the Y1731 responder as PTP slave.

  • Reconfigure IP SLA Y1731 while doing online insertion removal (OIR) of IM or router reload because local MEP is deleted during the course.

  • A delay may be observed after issuing the ip sla schedule command after a reload of the router is performed, to populate with the Y.1731 PM measurements.

  • The dot1q tag contains class of service (CoS) bits, which are used by IPSLA Y.1731 PM session to test delay or loss of packets with a specific CoS. This CoS cannot be a non-zero value when using EPM over untagged EFPs.

How to Configure IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) Operations

Configuring a Dual-Ended Ethernet Delay or Delay Variation Operation

Perform the tasks for configuring a dual-ended operation in the order presented.


Note

To remove the MEP configurations in an already-configured dual-ended operation, always remove the MEPs in the reverse order in which they were configured. That is, remove the scheduler first, then the threshold monitoring configuration, and then the sender MEP configuration on the source device before removing the scheduler, proactive threshold monitoring, and receiver MEP configuration on the destination device.

Configuring a Receiver MEP on the Destination Device

Before you begin

Time synchronization is required between the source and destination devices in order to provide accurate one-way delay (latency) or delay-variation measurements. Configure either Precision Time Protocol (PTP) or Network Time Protocol (NTP) on both the source and destination devices.

SUMMARY STEPS

  1. enable
  2. configure terminal
  3. ip sla operation-number
  4. ethernet y1731 delay receive 1DM domain domain-name {evc evc-id | vlan vlan-id} cos cos {mpid source-mp-id | mac-address source-address}
  5. aggregate interval seconds
  6. distribution {delay | delay-variation } one-way number-of-bins boundary[, ..., boundary]
  7. frame offset offset-value
  8. history interval intervals-stored
  9. max-delay milliseconds
  10. owner owner-id
  11. end

DETAILED STEPS

  Command or Action Purpose
Step 1

enable

Example:

Router> enable

Enables privileged EXEC mode.

  • Enter your password if prompted.

Step 2

configure terminal

Example:

Router# configure terminal

Enters global configuration mode.

Step 3

ip sla operation-number

Example:

Router(config-term)# ip sla 501

Begins configuring an IP SLAs operation and enters IP SLA configuration mode.

Step 4

ethernet y1731 delay receive 1DM domain domain-name {evc evc-id | vlan vlan-id} cos cos {mpid source-mp-id | mac-address source-address}

Example:

Router(config-ip-sla)# ethernet y1731 delay receive 1DM domain xxx evc yyy cos 3 mpid 101
Begins configuring the receiver on the responder and enters IP SLA Y.1731 delay configuration mode.

  • The source-mp-id or source-address configured by this command corresponds to that of the MEP being configured.

Note 

The session with mac-address will not be inactivated when there is CFM error.

Step 5

aggregate interval seconds

Example:

Router(config-sla-y1731-delay)# aggregate interval 900

(Optional) Configures the length of time during which the performance measurements are conducted and the results stored.

Step 6

distribution {delay | delay-variation } one-way number-of-bins boundary[, ..., boundary]

Example:

Router(config-sla-y1731-delay)# distribution delay-variation one-way 5 5000,10000,15000,20000,-1

(Optional) Specifies measurement type and configures bins for statistics distributions kept.

Step 7

frame offset offset-value

Example:

Router(config-sla-y1731-delay)# frame offset 1

(Optional) Sets the value for calculating delay variation rates.

Step 8

history interval intervals-stored

Example:

Router(config-sla-y1731-delay)# history interval 2

(Optional) Sets the number of statistics distributions kept during the lifetime of an IP SLAs Ethernet operation.

Step 9

max-delay milliseconds

Example:

Router(config-sla-y1731-delay)# max-delay 5000

(Optional) Sets the amount of time an MEP waits for a frame.

Step 10

owner owner-id

Example:

Router(config-sla-y1731-delay)# owner admin

(Optional) Configures the owner of an IP SLAs operation.

Step 11

end

Example:

Router(config-sla-y1731-delay)# end

Exits to privileged EXEC mode.

What to do next

To add proactive threshold conditions and reactive triggering for generating traps, see the "Configuring Proactive Threshold Monitoring" module of the IP SLAs Configuration Guide.

When you are finished configuring proactive threshold monitoring for this MEP, see the "Scheduling IP SLAs Operations" section to schedule the operation.

Configuring the Sender MEP on the Source Router

Before you begin

  • Time synchronization is required between the source and destination devices in order to provide accurate one-way delay (latency) or delay-variation measurements. Configure either Precision Time Protocol (PTP) or Network Time Protocol (NTP) on both the source and destination devices.

  • The receiver MEP must be configured, including proacive threshold monitoring, and scheduled before you configure the sender MEP.

SUMMARY STEPS

  1. enable
  2. configure terminal
  3. ip sla operation-number
  4. ethernet y1731 delay 1DM domain domain-name {evc evc-id | vlan vlan-id} {mpid target-mp-id | mac-address target-address} cos cos {source {mpid source-mp-id | mac-address source-address}}
  5. aggregate interval seconds
  6. frame interval milliseconds
  7. frame size bytes
  8. history interval intervals-stored
  9. owner owner-id
  10. end

DETAILED STEPS

  Command or Action Purpose
Step 1

enable

Example:

Router> enable

Enables privileged EXEC mode.

  • Enter your password if prompted.

Step 2

configure terminal

Example:

Router# configure terminal

Enters global configuration mode.

Step 3

ip sla operation-number

Example:

Router(config)# ip sla 500

Begins configuring an IP SLAs operation and enters IP SLA configuration mode.

Step 4

ethernet y1731 delay 1DM domain domain-name {evc evc-id | vlan vlan-id} {mpid target-mp-id | mac-address target-address} cos cos {source {mpid source-mp-id | mac-address source-address}}

Example:

Router(config-ip-sla)# ethernet y1731 delay 1DM domain xxx evc yyy mpid 101 cos 3 source mpid 100

Begins configuring a dual-ended Ethernet delay operation and enters IP SLA Y.1731 delay configuration mode.

Note 

The session with mac-address will not be inactivated when there is CFM error.

Step 5

aggregate interval seconds

Example:

Router(config-sla-y1731-delay)# aggregate interval 900

(Optional) Configures the length of time during which the performance measurements are conducted and the results stored.

Step 6

frame interval milliseconds

Example:

Router(config-sla-y1731-delay)# frame interval 100

(Optional) Sets the gap between successive frames.

Step 7

frame size bytes

Example:

Router(config-sla-y1731-delay)# frame size 64

(Optional) Sets the padding size for frames.

Step 8

history interval intervals-stored

Example:

Router(config-sla-y1731-delay)# history interval 2

(Optional) Sets the number of statistics distributions kept during the lifetime of an IP SLAs Ethernet operation.

Step 9

owner owner-id

Example:

Router(config-sla-y1731-delay)# owner admin

(Optional) Configures the owner of an IP SLAs operation.

Step 10

end

Example:

Router(config-sla-y1731-delay)# end

Exits to privileged EXEC mode.

What to do next

To add proactive threshold conditions and reactive triggering for generating traps, see the "Configuring Proactive Threshold Monitoring" module of the IP SLAs Configuration Guide.

When you are finished configuring proactive threshold monitoring for this MEP, see the "Scheduling IP SLAs Operations" section to schedule the operation.

Configuring a Sender MEP for a Single-Ended Ethernet Delay or Delay Variation Operation

Perform this task to configure a sender MEP on the source device.

Before you begin

  • Time synchronization is required between the source and destination devices in order to provide accurate one-way delay (latency) or delay-variation measurements. Configure either Precision Time Protocol (PTP) or Network Time Protocol (NTP) on both the source and destination devices.


Note

To display information about remote (target) MEPs on destination devices, use the show ethernet cfm maintenance-points remote command.

SUMMARY STEPS

  1. enable
  2. configure terminal
  3. ip sla operation-number
  4. ethernet y1731 delay {DMM | DMMv1 } [burst ] domain domain-name {evc evc-id | vlan vlan-id} {mpid target-mp-id | mac-address target-address} cos cos {source {mpid source-mp-id | mac-address source-address}}
  5. clock sync
  6. aggregate interval seconds
  7. distribution {delay | delay-variation } one-way number-of-bins boundary[, ..., boundary]
  8. frame interval milliseconds
  9. frame offset offset-value
  10. frame size bytes
  11. history interval intervals-stored
  12. max-delay milliseconds
  13. owner owner-id
  14. end

DETAILED STEPS

  Command or Action Purpose
Step 1

enable

Example:


Device> enable

Enables privileged EXEC mode.

  • Enter your password if prompted.

Step 2

configure terminal

Example:


Device# configure terminal

Enters global configuration mode.

Step 3

ip sla operation-number

Example:


Device(config-term)# ip sla 10

Begins configuring an IP SLAs operation and enters IP SLA configuration mode.

Step 4

ethernet y1731 delay {DMM | DMMv1 } [burst ] domain domain-name {evc evc-id | vlan vlan-id} {mpid target-mp-id | mac-address target-address} cos cos {source {mpid source-mp-id | mac-address source-address}}

Example:


Device(config-ip-sla)# ethernet y1731 delay dmm domain xxx evc yyy mpid 101 cos 4 source mpid 100
Begins configuring a single-ended Ethernet delay operation and enters IP SLA Y.1731 delay configuration mode.

  • To configure concurrent operations, use the DMMv1 keyword with this command. Repeat the preceding two steps to each concurrent operation, to be added to a single IP SLA operation number. Concurrent operations are supported for a given EVC, CoS, and remote MEP combination, or for multiple MEPs for a given multipoint EVC.

Note 

The session with mac-address will not be inactivated when there is CFM error.

Step 5

clock sync

Example:


Device(config-sla-y1731-delay)# clock sync

(Optional) Indicates that the end points are synchronized and thus allows the operation to calculate one-way delay measurements.

Step 6

aggregate interval seconds

Example:


Device(config-sla-y1731-delay)# aggregate interval 900

(Optional) Configures the length of time during which the performance measurements are conducted and the results stored.

Step 7

distribution {delay | delay-variation } one-way number-of-bins boundary[, ..., boundary]

Example:


Device(config-sla-y1731-delay)# distribution delay-variation one-way 5 5000, 10000,15000,20000,-1

(Optional) Specifies measurement type and configures bins for statistics distributions kept.

Step 8

frame interval milliseconds

Example:


Device(config-sla-y1731-delay)# frame interval 100

(Optional) Sets the gap between successive frames.

Step 9

frame offset offset-value

Example:


Device(config-sla-y1731-delay)# frame offset 1

(Optional) Sets value for calculating delay variation values.

Step 10

frame size bytes

Example:


Device(config-sla-y1731-delay)# frame size 32

(Optional) Configures padding size for frames.

Step 11

history interval intervals-stored

Example:


Device(config-sla-y1731-delay)# history interval 2

(Optional) Sets the number of statistics distributions kept during the lifetime of an IP SLAs Ethernet operation.

Step 12

max-delay milliseconds

Example:


Device(config-sla-y1731-delay)# max-delay 5000

(Optional) Sets the amount of time an MEP waits for a frame.

Step 13

owner owner-id

Example:


Device(config-sla-y1731-delay)# owner admin

(Optional) Configures the owner of an IP SLAs operation.

Step 14

end

Example:

Device(config-sla-y1731-delay)# end

Exits to privileged EXEC mode.

What to do next

To add proactive threshold conditions and reactive triggering for generating traps, see the "Configuring Proactive Threshold Monitoring" module of the IP SLAs Configuration Guide.

When you are finished configuring proactive threshold monitoring for this operation, see the "Scheduling IP SLAs Operations" section to schedule the operation.

Configuring a Sender MEP for a Single-Ended Ethernet Frame Loss Ratio Operation


Note

This task is not supported on Cisco ME 3600X Series and 3800X Series Ethernet Access Switches


Note

To display information about remote (target) MEPs on destination devices, use the show ethernet cfm maintenance-points remote command.

Perform this task to configure a sender MEP on the source device.

Before you begin

  • Class of Service (CoS)-level monitoring must be enabled on MEPs associated to the Ethernet frame loss operation by using the monitor loss counter command on the devices at both ends of the operation. See the Cisco IOS Carrier Ethernet Command Reference for command information. See the "Configuration Examples for IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) Operations" section for configuration information.


    Note

    Cisco IOS Y.1731 implementation allows monitoring of frame loss for frames on an EVC regardless of the CoS value (any CoS or Aggregate CoS cases). See the "Configuration Examples for IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) Operations" section for configuration information.

SUMMARY STEPS

  1. enable
  2. configure terminal
  3. ip sla operation-number
  4. ethernet y1731 loss {LMM | SLM } [burst ] domain domain-name {evc evc-id | vlan vlan-id} {mpid target-mp-id | mac-address target-address} CoS CoS {source {mpid source-mp-id | mac-address source-address}}
  5. aggregate interval seconds
  6. availability algorithm {sliding-window | static-window }
  7. frame consecutive value
  8. frame interval milliseconds
  9. history interval intervals-stored
  10. owner owner-id
  11. exit
  12. exit
  13. ip sla reaction-configuration operation-number {react {unavailableDS | unavailableSD } [threshold-type {average [number-of-measurements] | consecutive [occurrences] | immediate }] [threshold-value upper-threshold lower-threshold]
  14. ip sla logging traps
  15. exit

DETAILED STEPS

  Command or Action Purpose
Step 1

enable

Example:


Device> enable

Enables privileged EXEC mode.

  • Enter your password if prompted.

Step 2

configure terminal

Example:


Device# configure terminal

Enters global configuration mode.

Step 3

ip sla operation-number

Example:


Device(config-term)# ip sla 11

Begins configuring an IP SLAs operation and enters IP SLA configuration mode.

Step 4

ethernet y1731 loss {LMM | SLM } [burst ] domain domain-name {evc evc-id | vlan vlan-id} {mpid target-mp-id | mac-address target-address} CoS CoS {source {mpid source-mp-id | mac-address source-address}}

Example:


Device(config-ip-sla)# ethernet y1731 loss LMM domain xxx vlan 12 mpid 34 CoS 4 source mpid 23

Begins configuring a single-ended Ethernet frame loss ratio operation and enters IP SLA Y.1731 loss configuration mode.

  • To configure concurrent operations, use the SLM keyword with this command. Repeat the preceding two steps to configure each concurrent operation to be added to a single IP SLA operation number. Concurrent operations are supported for a given EVC, CoS, and remote-MEP combination, or for multiple MEPs for a given multipoint EVC.

Note 

The session with mac-address will not be inactivated when there is CFM error.

Step 5

aggregate interval seconds

Example:


Device(config-sla-y1731-loss)# aggregate interval 900

(Optional) Configures the length of time during which performance measurements are conducted and the results stored.

Step 6

availability algorithm {sliding-window | static-window }

Example:


Device(config-sla-y1731-loss)# availability algorithm static-window

(Optional) Specifies availability algorithm used.

Step 7

frame consecutive value

Example:


Device(config-sla-y1731-loss)# frame consecutive 10

(Optional) Specifies number of consecutive measurements to be used to determine availability or unavailability status.

Step 8

frame interval milliseconds

Example:


Device(config-sla-y1731-loss)# frame interval 100

(Optional) Sets the gap between successive frames.

Step 9

history interval intervals-stored

Example:


Device(config-sla-y1731-loss)# history interval 2

(Optional) Sets the number of statistics distributions kept during the lifetime of an IP SLAs Ethernet operation.

Step 10

owner owner-id

Example:


Device(config-sla-y1731-delay)# owner admin

(Optional) Configures the owner of an IP SLAs operation.

Step 11

exit

Example:


Device(config-sla-y1731-delay)# exit

Exits to IP SLA configuration mode.

Step 12

exit

Example:


Device(config-ip-sla)# exit

Exits to global configuration mode.

Step 13

ip sla reaction-configuration operation-number {react {unavailableDS | unavailableSD } [threshold-type {average [number-of-measurements] | consecutive [occurrences] | immediate }] [threshold-value upper-threshold lower-threshold]

Example:


Device(config)# ip sla reaction-configuration 11 react unavailableDS

(Optional) Configures proactive threshold monitoring for frame loss measurements.

Step 14

ip sla logging traps

Example:


Device(config)# ip sla logging traps

(Optional) Enables IP SLAs syslog messages from CISCO-RTTMON-MIB.

Step 15

exit

Example:


Device(config)# exit

Exits to privileged EXEC mode.

What to do next

When you are finished configuring this MEP, see the "Scheduling IP SLAs Operations" section to schedule the operation.

Scheduling IP SLAs Operations

Before you begin

  • All IP Service Level Agreements (SLAs) operations to be scheduled must be already configured.
  • The frequency of all operations scheduled in a multioperation group must be the same.
  • The list of one or more operation ID numbers to be added to a multioperation group must be limited to a maximum of 125 characters in length, including commas (,).

SUMMARY STEPS

  1. enable
  2. configure terminal
  3. Enter one of the following commands:
    • ip sla schedule operation-number [life {forever | seconds }] [start-time {[hh: mm: ss ] [month day | day month ] | pending | now | after hh: mm: ss }] [ageout seconds ] [recurring ]
    • ip sla group schedule group-operation-number operation-id-numbers {schedule-period schedule-period-range | schedule-together } [ageout seconds ] frequency group-operation-frequency [life {forever | seconds }] [start-time {hh: mm [: ss ] [month day | day month ] | pending | now | after hh: mm [: ss] }]
  4. end
  5. show ip sla group schedule
  6. show ip sla configuration

DETAILED STEPS

  Command or Action Purpose
Step 1

enable

Example:


Device> enable

Enables privileged EXEC mode.

  • Enter your password if prompted.

Step 2

configure terminal

Example:


Device# configure terminal

Enters global configuration mode.

Step 3

Enter one of the following commands:

  • ip sla schedule operation-number [life {forever | seconds }] [start-time {[hh: mm: ss ] [month day | day month ] | pending | now | after hh: mm: ss }] [ageout seconds ] [recurring ]
  • ip sla group schedule group-operation-number operation-id-numbers {schedule-period schedule-period-range | schedule-together } [ageout seconds ] frequency group-operation-frequency [life {forever | seconds }] [start-time {hh: mm [: ss ] [month day | day month ] | pending | now | after hh: mm [: ss] }]

Example:


Device(config)# ip sla schedule 10 life forever start-time now

Device(config)# ip sla group schedule 10 schedule-period frequency

Device(config)# ip sla group schedule 1 3,4,6-9 life forever start-time now 

Device(config)# ip sla schedule 1 3,4,6-9 schedule-period 50 frequency range 80-100

  • Configures the scheduling parameters for an individual IP SLAs operation.

  • Specifies an IP SLAs operation group number and the range of operation numbers for a multioperation scheduler.

Step 4

end

Example:


Device(config)# end

Exits global configuration mode and returns to privileged EXEC mode.

Step 5

show ip sla group schedule

Example:


Device# show ip sla group schedule

(Optional) Displays IP SLAs group schedule details.

Step 6

show ip sla configuration

Example:


Device# show ip sla configuration

(Optional) Displays IP SLAs configuration details.

Configuration Examples for IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) Operations

Example: Dual-Ended Ethernet Delay Operation

The following sample output shows the configuration, including default values, of a receiver MEP on the responder device for a dual-ended Ethernet delay or delay variation operation: 

Device# show ip sla configuration 501 

IP SLAs Infrastructure Engine-III
Entry number: 501
Owner: admin
Tag: 
Operation timeout (milliseconds): 5000
Ethernet Y1731 Delay Operation
Frame Type: 1DM
Domain: xxx
ReceiveOnly: TRUE
Evc: yyy
Local Mpid: 101
CoS: 3
   Max Delay: 5000
Threshold (milliseconds): 5000
.
.
.
Statistics Parameters
  Aggregation Period: 900
  Frame offset: 1
  Distribution Delay One-Way: 
   Number of Bins 10
   Bin Boundaries: 5000,10000,15000,20000,25000,30000,35000,40000,45000,-1
  Distribution Delay-Variation One-Way: 
   Number of Bins 10
   Bin Boundaries: 5000,10000,15000,20000,25000,30000,35000,40000,45000,-1
History
  Number of intervals: 2

The following sample output shows the configuration, including default values, of the sender MEP for a dual-ended IP SLAs Ethernet delay or delay variation operation: 

Device# show ip sla configuration 500 

IP SLAs Infrastructure Engine-III
Entry number: 500
Owner: 
Tag: 
Operation timeout (milliseconds): 5000
Ethernet Y1731 Delay Operation
Frame Type: 1DM
Domain: yyy
ReceiveOnly: FALSE
Evc: xxx
Target Mpid: 101
Source Mpid: 100
CoS: 3
   Request size (Padding portion): 64
   Frame Interval: 1000
Threshold (milliseconds): 5000
.
.
.
Statistics Parameters
  Aggregation Period: 900
  Frame offset: 1
History
  Number of intervals: 22

Example: Frame Delay and Frame Delay Variation Measurement Configuration

The following sample output shows the performance monitoring session summary:

Device# show ethernet cfm pm session summary

Number of Configured Session : 2
Number of Active Session: 2
Number of Inactive Session: 0

The following sample output shows the active performance monitoring session:

Device# show ethernet cfm pm session active

Display of Active Session
--------------------------------------------------------------------------------
EPM-ID   SLA-ID    Lvl/Type/ID/Cos/Dir     Src-Mac-address Dst-Mac-address
--------------------------------------------------------------------------------
 0     10           3/BD-V/10/2/Down     d0c2.8216.c9d7  d0c2.8216.27a3
 1     11           3/BD-V/10/3/Down     d0c2.8216.c9d7  d0c2.8216.27a3
Total number of Active Session: 2

Device# show ethernet cfm pm session db 0

----------------------------------------------------------------------------
      TX Time FWD                   RX Time FWD
      TX Time BWD                   RX Time BWD              Frame Delay
      Sec:nSec                      Sec:nSec                  Sec:nSec
----------------------------------------------------------------------------
Session ID: 0
****************************************************************************
       234:526163572                  245:305791416
       245:306761904                  234:527134653            0:593
****************************************************************************
       235:528900628                  246:308528744
       246:309452848                  235:529825333            0:601
****************************************************************************
       236:528882716                  247:308511128
       247:309450224                  236:529822413            0:601
****************************************************************************
       237:526578788                  248:306207432
       248:307157936                  237:527529885            0:593
****************************************************************************
       238:527052156                  249:306681064
       249:307588016                  238:527959717            0:609
****************************************************************************
       239:526625044                  250:306254200
       250:307091888                  239:527463325            0:593
****************************************************************************
       240:528243204                  251:307872648
       251:308856880                  240:529228021            0:585

Example: Sender MEP for a Single-Ended Ethernet Delay Operation

The following sample output shows the configuration, including default values, of the sender MEP for a single-ended IP SLAs Ethernet delay operation: 

Router# show ip sla configuration 10 

IP SLAs Infrastructure Engine-III
Entry number: 10
Owner: 
Tag: 
Operation timeout (milliseconds): 5000
Ethernet Y1731 Delay Operation
Frame Type: DMM
Domain: xxx
Vlan: yyy
Target Mpid: 101
Source Mpid: 100
CoS: 4
   Max Delay: 5000
   Request size (Padding portion): 64
   Frame Interval: 1000
   Clock: Not In Sync
Threshold (milliseconds): 5000
.
.
.
Statistics Parameters
  Aggregation Period: 900
  Frame offset: 1
  Distribution Delay Two-Way: 
   Number of Bins 10
   Bin Boundaries: 5000,10000,15000,20000,25000,30000,35000,40000,45000,-1
  Distribution Delay-Variation Two-Way: 
   Number of Bins 10
   Bin Boundaries: 5000,10000,15000,20000,25000,30000,35000,40000,45000,-1
History
  Number of intervals: 2

Example: Sender MEP for a Single-Ended Ethernet Frame Loss Operation

The following output shows the configuration, including default values, of the sender MEP in a basic single-ended IP SLAs Ethernet frame loss ratio operation with a start-time of now: 

Router# show ip sla configuration 11 

IP SLAs Infrastructure Engine-III
Entry number: 11
Owner: 
Tag: 
Operation timeout (milliseconds): 5000
Ethernet Y1731 Loss Operation
Frame Type: LMM
Domain: xxx
Vlan: 12
Target Mpid: 34
Source Mpid: 23
CoS: 4
   Request size (Padding portion): 0
   Frame Interval: 1000
Schedule:
   Operation frequency (seconds): 60  (not considered if randomly scheduled)
   Next Scheduled Start Time: Start Time already passed
   Group Scheduled : FALSE
   Randomly Scheduled : FALSE
   Life (seconds): 3600
   Entry Ageout (seconds): never
   Recurring (Starting Everyday): FALSE
   Status of entry (SNMP RowStatus): ActiveThreshold (milliseconds): 5000
Statistics Parameters
  Aggregation Period: 900
  Frame consecutive: 10
  Availability algorithm: static-window
History
  Number of intervals: 2

Additional References for IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) Operations

Related Documents

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Document Title

Cisco IOS commands

Cisco IOS Master Commands List, All Releases

Cisco IOS Carrier Ethernet commands

Cisco IOS Carrier Ethernet Command Reference

Cisco IOS IP SLAs commands

Cisco IOS IP SLAs Command Reference

Ethernet CFM

“Configuring Ethernet Connectivity Fault Management in a Service Provider Network” module of the Cisco IOS Carrier Ethernet Configuration Guide

Network Time Protocol (NTP)

“Configuring NTP” module of the Cisco IOS Network Management Configuration Guide

Proactive threshold monitoring for Cisco IOS IP SLAs

“Configuring Proactive Threshold Monitoring of IP SLAs Operations” module of the Cisco IOS IP SLAs Configuration Guide

Standards and RFCs

Standard/RFC

Title

ITU-T Y.1731

OAM functions and mechanisms for Ethernet-based networks

No specific RFCs are supported by the features in this document.

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MIBs

MIB

MIBs Link

  • CISCO-IPSLA-ETHERNET-MIB

  • CISCO-RTTMON-MIB

To locate and download MIBs for selected platforms, Cisco software releases, and feature sets, use Cisco MIB Locator found at the following URL:

http://www.cisco.com/go/mibs

Technical Assistance

Description

Link

The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password.

http://www.cisco.com/cisco/web/support/index.html

Feature Information for IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) Operations

The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Table 1. Feature Information for IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731)

Feature Name

Releases

Feature Information

IP SLA Support for ETH-SLM (Ethernet Synthetic Loss Measurement in Y1731)

Cisco IOS XE Release 3.8S

Y.1731 Performance Monitoring (PM) provides a standard Ethernet PM function that includes measurement of Ethernet frame delay, frame delay variation, frame loss, and frame throughput measurements specified by the ITU-T Y-1731 standard and interpreted by the Metro Ethernet Forum (MEF) standards group.

In Cisco IOS XE Release 3.8S, support was added for Cisco ASR 900 Series.

Y1731 MIB Support through existing IPSLA MIBs

Cisco IOS XE Release 3.8S

Support was added for reporting threshold events and collecting performance statistics for IP SLAs Metro-Ethernet 3.0 (ITU-T Y.1731) operations using SNMP.