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Configuring TWAMP
- 20 Jun 2024
- 6 Minutes to read
- Contributors
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Configuring TWAMP
- Updated on 20 Jun 2024
- 6 Minutes to read
- Contributors
- Print
- PDF
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The following article describes how to configure TWAMP (Two-Way Active Measurement Protocol) between two units as well as how to validate session status and KPIs.
Configuring TWAMP Between Two Units
To configure TWAMP between two units
- Configure unit 1 VLAN and ports by using the following commands:
configure terminal
vlan 3960
ports XL-ethernet 0/2
end
configure terminal
interface XL-ethernet 0/2
switchport egress ether-type 0x88a8
switchport ingress ether-type 0x88a8
end
- Configure unit 1 OE-SVI:
configure terminal
oe-svi 1
set name oe_svi_1 admin-state enable transport-type vlan 3960 ipv4 enable 1.1.1.1 24
end
- Display unit 1 OE-SVI configuration:
show running-config oe-svi
2024-02-21 11:21:51,842 - INFO - [10.247.51.10]: show oe-svi id 1 configuration
oe-svi-id : 1
oe-svi-name : oe_svi_1
admin-state : enable
transport-type : vlan
vlan-id : 3960
oe-cos-profile : 1
ip-address-mode : static
ipv4-state : enable
ip-address : 1.1.1.1
netmask : 24
gateway : 0.0.0.0
ttl : 255
ipv6-state : disable
ip6-address : ::
mask : 64
next-hop-address : ::
hop-limit : 255
default-dscp : 0
default-vlan-pcp : 0
- Configure unit 1 TWAMP-SENDER session:
configure terminal
oe-svi 1
oe-twamp-session-sender 1
test-session name TWPL_Sender_1 sender-udp-port 25053 reflector-ip 1.1.1.5 padding-length 32 periodic-interval 1000 measurement-interval 60
end
- Display unit 1 TWAMP-SENDER session configuration:
show oe-twamp-session-sender id 1 configuration
session-id : 1
session-name : TWPL_Sender_1
admin-state : enable
oe-svi-id : 1
dscp : 1
sender-ip : 1.1.1.1
sender-udp-port : 25053
reflector-ip : 1.1.1.5
reflector-udp-port : 862
size-select : padding-length
padding-length : 32
payload-size : 50
padding-pattern : all-zero
periodic-interval : 1000 millisecond
measurement-interval : 60 seconds
- Enable unit 1 port:
configure terminal
interface XL-ethernet 0/2
no shutdown
end
- Configure unit 2 VLAN and ports by using the following commands:
configure terminal
vlan 3960
ports XL-ethernet 0/2
end
configure terminal
interface XL-ethernet 0/2
switchport egress ether-type 0x88a8
switchport ingress ether-type 0x88a8
end
- Configure unit 2 OE-SVI:
configure terminal
oe-svi 1
set name oe_svi_1 admin-state enable transport-type vlan 3960 ipv4 enable 1.1.1.5 24
end
- Display unit 2 OE-SVI configuration:
show running-config oe-svi
show oe-svi id 1 configuration
oe-svi-id : 1
oe-svi-name : oe_svi_1
admin-state : enable
transport-type : vlan
vlan-id : 3960
oe-cos-profile : 1
ip-address-mode : static
ipv4-state : enable
ip-address : 1.1.1.5
netmask : 24
gateway : 0.0.0.0
ttl : 255
ipv6-state : disable
ip6-address : ::
mask : 64
next-hop-address : ::
hop-limit : 255
default-dscp : 0
default-vlan-pcp : 0
- Configure unit 2 TWAMP-REFLECTOR session:
configure terminal
oe-svi 1
oe-twamp-session-reflector 1
test-session name TWPL_Reflector_1 sender-ip 1.1.1.1 sender-udp-port 25053
end
- Display unit 2 TWAMP- REFLECTOR session configuration:
show oe-twamp-session-reflector id 1 configuration
session-id : 1
session-name : TWPL_Sender_1
admin-state : enable
oe-svi-id : 1
dscp : 1
sender-ip : 1.1.1.1
sender-udp-port : 25053
reflector-ip : 1.1.1.5
reflector-udp-port : 862
size-select : padding-length
padding-length : 32
payload-size : 50
padding-pattern : all-zero
periodic-interval : 1000 millisecond
measurement-interval : 60 seconds
- Enable unit 2 port:
configure terminal
interface XL-ethernet 0/2
no shutdown
end
Validating the Status of the TWAMP Sessions
OE-SVI and TWAMP status on Sender
Validate the OE-SVI status on the Sender side as well as the TWAMP Sender.
To validate OE-SVI status
- Execute the following command:
your product# show oe-svi id 1 status
oe-svi-id : 1
oe-svi-name : oe_svi_1
operational-status : up
tx-packets : 9
rx-packets : 8
To validate TWAMP session status on TWAMP Sender
- Execute the following command:
your product# show oe-twamp-session-sender id 1
session-id : 1
session-name : TWPL_Sender_1
operational-status : up
OE-SVI and TWAMP Status and Statistics at the Reflector
Validate the OE-SVI status on Sender side as well as the TWAMP Reflector. In theory, if all status were okay on the Sender side, the status should be okay on the reflector side as well.
Note: The TWAMP statistics are only available at the reflector side.
To validate OE-SVI status
- Execute the following command:
your product# show oe-svi id 1 status
oe-svi-id : 1
oe-svi-name : oe_svi_1
operational-status : up
tx-packets : 10
rx-packets : 10
To validate TWAMP session status on TWAMP Reflector
- Execute the following command:
your product# show oe-twamp-session-reflector id 1 status
operational-status : up
sent-packet : 7 <<<<<<<<<<< TWAMP statistics
received-packet : 8 <<<<<<<<<<< TWAMP statistics
Validating the TWAMP KPIs (Two-Way Delay Measurements)
In order to see the two-way delay measurements, you must enable Telemetry on the SENDER (unit 1) side.
To validate TWAMP KPIs
- Enable telemetry on unit 1 by executing the following commands:
configure terminal
set telemetry enable
telemetry
set twamp enable
end
- Display unit 1 telemetry configuration using the following command:
your product# show telemetry
Telemetry Information
Status : Enable
---------------------------------
Sensor DMM
Status : Disable
Measurement interval : 60 second
----------------------------------
Sensor SLM
Status : Disable
Measurement interval : 60 second
----------------------------------
Sensor TWAMP
Status : Enable
----------------------------------
Reporter
Type : OpenMetrics
Status : Disable
Destination IP : 0.0.0.0
Destination Port : 1
Operation Status : Not Connected
Notice : Disconnected
Note: Contrarily to DMM and SLM, TWAMP measurement interval is part of the TWAMP Sender configuration.
- Display TWAMP current telemetry statistics of unit 1 using the following command:
your product# show telemetry statistics current twamp id 1
Current statistics for TWAMP
--------------------------------------
test-name : TWPL_Sender_1
sender-ip : 1.1.1.1
sender-udp-port : 25053
reflector-ip : 1.1.1.5
reflector-udp-port : 862
oe-svi-id : 1
measurement-interval (s) : 60
Start time : 02-21-2024 16:23:00
Current time : 02-21-2024 16:23:20
Suspect flag : false
One-Way Delay Valid : false
Samples : 20
One-Way Near-End Delay
Min value (us) : ---
Max value (us) : ---
Average value (us) : ---
One-Way Near-End Delay Variation
Min value (us) : 1
Max value (us) : 1
Average value (us) : 1
One-Way Far-End Delay
Min value (us) : ---
Max value (us) : ---
Average value (us) : ---
One-Way Far-End Delay Variation
Min value (us) : 1
Max value (us) : 1
Average value (us) : 1
Two-Way Delay
Min value (us) : 0
Max value (us) : 0
Average value (us) : 0
Two-Way Delay Variation
Min value (us) : 0
Max value (us) : 0
Average value (us) : 0
Loss Measurements
NE Packets lost : 0
NE Total packets received : 20
NE Packet Loss Ratio (%) : 0.000
FE Packets lost : 0
FE Total packets received : 20
FE Packet Loss Ratio (%) : 0.000
- Display TWAMP history telemetry statistics of unit 1 using the following command:
your product# show telemetry statistics history twamp id 1 latest
History statistics for TWAMP
--------------------------------------
test-name : TWPL_Sender_1
sender-ip : 1.1.1.1
sender-udp-port : 25053
reflector-ip : 1.1.1.5
reflector-udp-port : 862
oe-svi-id : 1
measurement-interval (s) : 60
Start time : 02-21-2024 16:23:00
End time : 02-21-2024 16:24:00
Period id : 3
Suspect flag : false
One-Way Delay Valid : false
Samples : 60
One-Way Near-End Delay
Min value (us) : ---
Max value (us) : ---
Average value (us) : ---
One-Way Near-End Delay Variation
Min value (us) : 1
Max value (us) : 1
Average value (us) : 1
One-Way Far-End Delay
Min value (us) : ---
Max value (us) : ---
Average value (us) : ---
One-Way Far-End Delay Variation
Min value (us) : 1
Max value (us) : 1
Average value (us) : 1
Two-Way Delay
Min value (us) : 0
Max value (us) : 0
Average value (us) : 0
Two-Way Delay Variation
Min value (us) : 0
Max value (us) : 0
Average value (us) : 0
Loss Measurements
NE Packets lost : 0
NE Total packets received : 60
NE Packet Loss Ratio (%) : 0.000
FE Packets lost : 0
FE Total packets received : 60
FE Packet Loss Ratio (%) : 0.000
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