Example for Configuring TWAMP Light on VLL+L3VPN Networks
This section provides an example for configuring TWAMP Light functions on VLL+L3VPN networks.
Networking Requirements
On the VLL+L3VPN networks shown in Figure 1, DeviceA functions as the Responder and is deployed on the last hop of the link connecting to a base station. DeviceB functions as the Controller and is deployed on the aggregation node.
- DeviceA: responds to the packets received over a test session.
- DeviceB: sends and receives packets over a test session and collects and calculates performance statistics on the Layer 3 network, and reports the statistics to the performance management system.
Interface 1 and Interface 2 in this example represent GigabitEthernet 0/1/1 and GigabitEthernet 0/1/0, respectively.
Configuration Roadmap
The configuration roadmap is as follows:
- Configure VLL and L3VPN networks.
- Configure the TWAMP Light Responder.
- Configure devices at the edge of Layer 2 and Layer 3 networks.
- Configure the TWAMP Light Controller.
- Configure the Controller to send statistics to the performance management system through telemetry.
Data Preparation
To complete the configuration, you need the following data:
- IP addresses of the interfaces connecting devices
- IP addresses and UDP port numbers of the Responder and Controller. IP addresses and gPRC port numbers of the performance management system.
Procedure
- Assign IP addresses to node interfaces, including loopback interfaces.
For configuration details, see Configuration Files.
- Configure an IGP on the backbone network. OSPF is used in this example.
For configuration details, see Configuration Files.
- Configure an MPLS tunnel between DeviceA and DeviceC, and between DeviceC and DeviceB.
For configuration details, see Configuration Files.
After an MPLS tunnel is established, you can run the display mpls ldp command on DeviceA to display LDP information. Take the display on DeviceA as an example:
[~DeviceA] display mpls ldp LDP Global Information ------------------------------------------------------------------------------ Protocol Version : V1 Neighbor Liveness : 600 Sec Graceful Restart : Off FT Reconnect Timer : 300 Sec MTU Signaling : On Recovery Timer : 300 Sec Capability-Announcement : On Longest-match : Off mLDP P2MP Capability : Off mLDP MBB Capability : Off mLDP MP2MP Capability : Off mLDP Recursive-fec : Off LDP Instance Information ------------------------------------------------------------------------------ Instance ID : 0 VPN-Instance : Instance Status : Active LSR ID : 1.1.1.1 Hop Count Limit : 32 Path Vector Limit : 32 Loop Detection : Off DU Re-advertise Timer : 10 Sec DU Re-advertise Flag : Off DU Explicit Request : Off Request Retry Flag : Off Label Distribution Mode : Ordered Label Retention Mode : Liberal(DU)/Conservative(DOD) Graceful-Delete : Off Graceful-Delete Timer : 5 Sec Igp-sync-delay Timer : 10 Sec ------------------------------------------------------------------------------
- Configure the TWAMP Light Responder.
<DeviceA> system-view [~DeviceA] nqa twamp-light [*DeviceA-twamp-light] responder [*DeviceA-twamp-light-responder] test-session 1 local-ip 192.168.1.1 remote-ip 192.168.2.2 local-port 6000 remote-port 6000 interface GigabitEthernet0/1/0.1 [*DeviceA-twamp-light-responder] commit [~DeviceA-twamp-light-responder] quit [~DeviceA-twamp-light] quit
When DeviceA functions as the reflector, the local IP address in the command for creating a session is the IP address of the base station, and the remote IP address is the IP address of DeviceB.
- Configure the TWAMP Light Controller.
<DeviceB> system-view [~DeviceB] nqa twamp-light [*DeviceB-twamp-light] client [*DeviceB-twamp-light-client] test-session 1 sender-ip 192.168.2.2 reflector-ip 192.168.1.1 sender-port 6000 reflector-port 6000 vpn-instance CDMA-RAN [*DeviceB-twamp-light-client] commit [~DeviceB-twamp-light-client] quit [~DeviceB-twamp-light] sender [*DeviceB-twamp-light-sender] commit [~DeviceB-twamp-light-sender] test start-continual test-session 1 period 10 [*DeviceB-twamp-light-sender] commit [~DeviceB-twamp-light-sender] quit [~DeviceB-twamp-light] quit
- When the base station is offline, you need to configure static ARP on DeviceC to specify the mapping between the IP address and the MAC address of the base station.
<DeviceC> system-view [~DeviceC] arp static 192.168.1.1 00e0-fc12-3456 vid 26 interface Virtual-Ethernet0/1/1.31 [*DeviceC] commit
- Verify the configuration.
# Check real-time TWAMP Light session statistics on DeviceB.
[~DeviceB] display twamp-light test-session 1 Session ID : 1 State : active Type : continual Sender IP : 192.168.2.2 Sender Port : 6000 Reflector IP : 192.168.1.1 Reflector Port : 6000 Mode : unauthenticated DSCP : 0 Padding Length : 128 Padding Type : 00 VPN Instance : - Link-Bundle Interface : - Last Start Time : 2017-04-13 15:33:52 Last Stop Time : never Regular Time(in minute) : - Period Time(in millisecond) : 10 Time Out(in second) : 5 Duration Time(in second) : - Packet Count : -
# Check two-way delay statistics of a TWAMP Light session on DeviceB.
[~DeviceB] display twamp-light statistic-type twoway-delay test-session 1 Latest two-way delay statistics(usec): -------------------------------------------------------------------------------- Index Delay(Avg) Jitter(Avg) Tx-Jitter(Avg) Rx-Jitter(Avg) -------------------------------------------------------------------------------- 11027 345 5 3 4 11028 345 5 3 4 11029 345 5 4 4 11030 347 5 3 4 11031 347 4 3 4 11032 347 4 3 4 11033 347 4 3 4 11034 346 4 3 4 11035 346 5 3 4 11036 346 5 3 4 11037 346 5 3 4 11038 346 4 4 3 11039 347 4 4 3 11040 347 4 4 3 11041 347 4 4 3 11042 347 4 4 3 11043 347 5 3 4 11044 346 5 3 4 11045 346 5 3 4 11046 346 5 3 4 11047 346 5 3 4 11048 346 5 3 4 11049 346 4 3 4 11050 346 4 3 4 11051 345 4 3 3 11052 345 4 3 3 11053 345 5 4 3 11054 345 5 4 3 11055 345 4 4 3 11056 345 4 3 3 -------------------------------------------------------------------------------- Average Delay : 346 Average Jitter : 5 Maximum Delay : 370 Maximum Jitter : 32 Minimum Delay : 328 Minimum Jitter : 0 Average TxJitter : 3 Average RxJitter : 4 Maximum TxJitter : 29 Maximum RxJitter : 23 Minimum TxJitter : 0 Minimum RxJitter : 0
# Check two-way packet loss statistics of a TWAMP Light session on DeviceB.
[~DeviceB] display twamp-light statistic-type twoway-loss test-session 1 Latest two-way loss statistics: -------------------------------------------------------------------------------- Index Loss count Loss ratio Error count Error ratio -------------------------------------------------------------------------------- 108196 0 0.0000% 0 0.0000% 108197 0 0.0000% 0 0.0000% 108198 0 0.0000% 0 0.0000% 108199 0 0.0000% 0 0.0000% 108200 0 0.0000% 0 0.0000% 108201 0 0.0000% 0 0.0000% 108202 0 0.0000% 0 0.0000% 108203 0 0.0000% 0 0.0000% 108204 0 0.0000% 0 0.0000% 108205 0 0.0000% 0 0.0000% 108206 0 0.0000% 0 0.0000% 108207 0 0.0000% 0 0.0000% 108208 0 0.0000% 0 0.0000% 108209 0 0.0000% 0 0.0000% 108210 0 0.0000% 0 0.0000% 108211 0 0.0000% 0 0.0000% 108212 0 0.0000% 0 0.0000% 108213 0 0.0000% 0 0.0000% 108214 0 0.0000% 0 0.0000% 108215 0 0.0000% 0 0.0000% 108216 0 0.0000% 0 0.0000% 108217 0 0.0000% 0 0.0000% 108218 0 0.0000% 0 0.0000% 108219 0 0.0000% 0 0.0000% 108220 0 0.0000% 0 0.0000% 108221 0 0.0000% 0 0.0000% 108222 0 0.0000% 0 0.0000% 108223 0 0.0000% 0 0.0000% 108224 0 0.0000% 0 0.0000% 108225 0 0.0000% 0 0.0000% -------------------------------------------------------------------------------- Average Loss Count : 0 Average Loss Ratio : 0.0000% Maximum Loss Count : 0 Maximum Loss Ratio : 0.0000% Minimum Loss Count : 0 Minimum Loss Ratio : 0.0000% Average RxError Count: 0 Average RxError Ratio: 0.0000% Maximum RxError Count: 0 Maximum RxError Ratio: 0.0000% Minimum RxError Count: 0 Minimum RxError Ratio: 0.0000%
- Configure DeviceB to send statistics to the performance management system through telemetry.
[~DeviceB] telemetry [~DeviceB-telemetry] destination-group twamp [*DeviceB-telemetry-destination-group-twamp] ipv4-address 192.168.100.100 port 10001 protocol grpc no-tls [*DeviceB-telemetry-destination-group-twamp] quit [*DeviceB-telemetry] sensor-group twamp [*DeviceB-telemetry-sensor-group-twamp] sensor-path huawei-twamp-controller:twamp-controller/client/sessions/session/huawei-twamp-statistics:statistics [*DeviceB-telemetry-sensor-group-twamp] quit [*DeviceB-telemetry] subscription twamp [*DeviceB-telemetry-subscription-twamp] sensor-group twamp sample-interval 5000 [*DeviceB-telemetry-subscription-twamp] destination-group twamp [*DeviceB-telemetry-subscription-twamp] commit
Configuration Files
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# sysname DeviceA # mpls # mpls lsr-id 10.0.0.1 # mpls # mpls ldp outbound peer all split-horizon accept target-hello all # ipv4-family # mpls ldp remote-peer 10.0.0.2 mpls ldp timer hello-hold 45 mpls ldp timer keepalive-hold 45 remote-ip 10.0.0.2 # ospf 1 router-id 10.0.0.1 area 0.0.0.1 network 3.0.0.0 0.0.0.3 network 10.0.0.1 0.0.0.0 # interface loopback0 ip address 10.0.0.1 255.255.255.255 # interface GigabitEthernet0/1/1.31 vlan-type dot1q 31 mtu 9500 ip address 192.168.1.1 255.255.255.0 mpls mpls ldp # interface GigabitEthernet0/1/0.1 vlan-type dot1q 1 mtu 9500 mpls l2vc 10.0.0.2 26 control-word raw # nqa twamp-light responder test-session 1 local-ip 192.168.1.1 remote-ip 192.168.2.2 local-port 6000 remote-port 6000 interface GigabitEthernet0/1/0.1 # return
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# sysname DeviceB # mpls # mpls lsr-id 10.0.0.3 # mpls # mpls ldp # ipv4-family # isis 1 cost-style wide network-entity 10.0000.0000.0003.00 # ip vpn-instance CDMA-RAN ipv4-family route-distinguisher 4134:3060 apply-label per-instance arp vlink-direct-route advertise vpn-target 4134:306000 export-extcommunity vpn-target 4134:306000 import-extcommunity # interface loopback0 ip address 10.0.0.3 255.255.255.255 isis enable 1 # interface GigabitEthernet0/1/0.31 vlan-type dot1q 31 mtu 9500 ip address 3.0.0.6 255.255.255.252 isis enable 1 mpls mpls ldp # interface GigabitEthernet0/1/1.31 vlan-type dot1q 1 ip binding vpn-instance CDMA-RAN ip address 192.168.2.2 255.255.255.0 # nqa twamp-light client test-session 1 sender-ip 192.168.2.2 reflector-ip 192.168.1.1 sender-port 6000 reflector-port 6000 vpn-instance CDMA-RAN sender test start-continual test-session 1 period 10 # telemetry # sensor-group twamp sensor-path huawei-twamp-controller:twamp-controller/client/sessions/session/huawei-twamp-statistics:statistics # destination-group twamp ipv4-address 192.168.100.100 port 10001 protocol grpc no-tls # subscription twamp sensor-group twamp sample-interval 5000 destination-group twamp # return
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# sysname DeviceC # mpls # mpls lsr-id 10.0.0.2 # mpls # mpls ldp remote-peer 10.0.0.1 mpls ldp timer hello-hold 45 mpls ldp timer keepalive-hold 45 remote-ip 10.0.0.1 # ospf 1 stub-router on-startup area 0.0.0.1 network 3.0.0.0 0.0.0.3 network 10.0.0.2 0.0.0.0 # isis 1 cost-style wide network-entity 10.0000.0000.0002.00 # ip vpn-instance CDMA-RAN ipv4-family route-distinguisher 4134:3060 apply-label per-instance arp vlink-direct-route advertise vpn-target 4134:306000 export-extcommunity vpn-target 4134:306000 import-extcommunity # interface loopback0 ip address 10.0.0.2 255.255.255.255 isis enable 1 # interface GigabitEthernet0/1/1.31 vlan-type dot1q 31 mtu 9500 ip address 3.0.0.2 255.255.255.252 mpls mpls ldp # interface GigabitEthernet0/1/0.31 vlan-type dot1q 31 mtu 9500 ip address 3.0.0.5 255.255.255.252 isis enable 1 mpls mpls ldp # interface Virtual-Ethernet0/1/0 ve-group 1 l3-access # interface Virtual-Ethernet0/1/0.2 mtu 9500 ip binding vpn-instance CDMA-RAN ip address 192.168.1.3 255.255.0.0 encapsulation dot1q-termination dot1q termination vid 26 to 50 arp broadcast enable arp-proxy enable arp-proxy inter-sub-vlan-proxy enable arp-proxy inner-sub-vlan-proxy enable ipv6 nd ns multicast-enable ipv6 nd na glean ipv6 nd proxy inter-access-vlan enable # interface Virtual-Ethernet0/1/1 ve-group 1 l2-terminate # interface Virtual-Ethernet0/1/1.26 vlan-type dot1q 26 mtu 9500 mpls l2vc 10.0.0.1 26 control-word raw ignore-standby-state # arp static 192.168.1.1 00e0-fc12-3456 vid 26 interface Virtual-Ethernet0/1/1.26 # return