Example for Configuring Single-ended SLM in VPLS Networking
This section provides an example for configuring single-ended synthetic frame loss measurement (LM) in virtual private LAN service (VPLS) networking.
Networking Requirements
As networks rapidly develop and applications diversify, various value-added services, such as Internet Protocol television (IPTV), video conferencing, and Voice over Internet Protocol (VoIP), are more widely used than ever before. Any link connectivity fault or network performance deterioration directly affects service quality on a live network, making performance monitoring on the pipes that transmit these services absolutely essential.
On the point-to-multipoint network shown in Figure 1, a carrier wants to collect accurate performance statistics about LM on the link between PE1 and PE2. To monitor network performance in real time, the carrier can configure single-ended SLM on the VPLS network. This configuration allows the carrier to immediately adjust the network in case of voice quality deterioration.
Configuration Roadmap
Configure single-ended on-demand SLM on a PW between provider edges (PEs).
Configure single-ended proactive SLM on a PW between PEs.
Data Preparation
To complete the configuration, you need the following data:
Layer 2 virtual circuit (L2VC) ID
Names of the maintenance domain (MD) and maintenance association (MA) in which CE1, PE1, and PE2 reside
Procedure
- Configure single-ended on-demand SLM on a PW between PEs.
Configure a VPLS.
Configure a VPLS between PE1 and PE2. For configuration details, see "VPLS Configuration" in Configuration Guide - VPN in this section.
After the preceding configuration is complete, run the display vsi command on each PE to view VC and attachment circuit (AC) information. The following example uses the command output on PE1.
[~PE1] display vsi name ethoam verbose ***VSI Name : ethoam Administrator VSI : no Isolate Spoken : disable VSI Index : 0 PW Signaling : ldp Member Discovery Style : static Bridge-domain Mode : disable PW MAC Learn Style : unqualify Encapsulation Type : vlan MTU : 1500 Diffserv Mode : uniform Service Class : -- Color : -- DomainId : 255 Domain Name : Ignore AcState : disable P2P VSI : disable Create Time : 5 days, 19 hours, 40 minutes, 31 seconds VSI State : up VSI ID : 80000 *Peer Router ID : 10.1.1.24 primary or secondary : primary ignore-standby-state : no VC Label : 527 Peer Type : dynamic Session : up Tunnel ID : 0x25f Broadcast Tunnel ID : 0x25f Broad BackupTunnel ID : 0x0 CKey : 2 NKey : 1 Stp Enable : 0 PwIndex : 0 Control Word : enable Interface Name : Eth-Trunk2.1 State : up Access Port : false Last Up Time : 2013/04/15 17:37:09 Total Up Time : 0 days, 0 hours, 1 minutes, 37 seconds **PW Information: *Peer Ip Address : 10.1.1.24 PW State : up Local VC Label : 527 Remote VC Label : 527 Remote Control Word : enable PW Type : label Tunnel ID : 0x25f Broadcast Tunnel ID : 0x25f Broad BackupTunnel ID : 0x0 Ckey : 0x2 Nkey : 0x1 Main PW Token : 0x25f Slave PW Token : 0x0 Tnl Type : LSP OutInterface : GigabitEthernet0/1/9 Backup OutInterface : Stp Enable : 0 PW Last Up Time : 2013/04/15 17:37:28 PW Total Up Time : 0 days, 0 hours, 1 minutes, 18 seconds
Configure basic Ethernet connectivity fault management (CFM) functions and set the maintenance association end point (MEP) type to inward.
Configure basic Ethernet CFM functions on each PE. Specify the Ethernet CFM protocol as IEEE Standard 802.1ag-2007. Create an MD named md1 and an MA named ma1, and bind the MA to the VPLS.
# Configure PE1.
[~PE1] cfm enable [*PE1] cfm version standard [*PE1] cfm md md1 [*PE1-md-md1] ma ma1 [*PE1-md-md1-ma-ma1] map vsi ethoam [*PE1-md-md1-ma-ma1] mep mep-id 1 interface Eth-Trunk2.1 inward [*PE1-md-md1-ma-ma1] mep ccm-send mep-id 1 enable [*PE1-md-md1-ma-ma1] remote-mep mep-id 2 [*PE1-md-md1-ma-ma1] remote-mep ccm-receive mep-id 2 enable [*PE1-md-md1-ma-ma1] test-id 1 mep 1 remote-mep 2 peer 10.1.1.24
# Configure PE2.
[~PE2] cfm enable [*PE2] cfm version standard [*PE2] cfm md md1 [*PE2-md-md1] ma ma1 [*PE2-md-md1-ma-ma1] map vsi ethoam [*PE2-md-md1-ma-ma1] mep mep-id 2 interface Eth-Trunk2.1 inward [*PE2-md-md1-ma-ma1] mep ccm-send mep-id 2 enable [*PE2-md-md1-ma-ma1] remote-mep mep-id 1 [*PE2-md-md1-ma-ma1] remote-mep ccm-receive mep-id 1 enable [*PE2-md-md1-ma-ma1] test-id 1 mep 2 remote-mep 1 peer 10.1.1.25
Enable PE2 to receive SLM frames.
# Configure PE2.
[*PE2-md-md1-ma-ma1] loss-measure single-ended-synthetic receive test-id 1 time-out 300 [*PE2-md-md1-ma-ma1] commit [~PE2-md-md1-ma-ma1] quit [~PE2-md-md1] quit
Enable PE1 to send SLM frames.
# Configure PE1.
[*PE1-md-md1-ma-ma1] loss-measure single-ended-synthetic send test-id 1 interval 1000 sending-count 10 time-out 2 [*PE1-md-md1-ma-ma1] commit [~PE1-md-md1-ma-ma1] quit [~PE1-md-md1] quit
Verify the configuration.
Run the display y1731 statistic-type command on PE1 to view statistics about single-ended on-demand SLM.
[~PE1]display y1731 statistic-type single-synthetic-loss test-id 1 -------------------------------------------------------------------------------- Index L-send R-send L-recv Unack L-loss R-loss L-loss-ratio R-loss-ratio -------------------------------------------------------------------------------- 1016 10 10 10 0 0 0 0.0000% 0.0000% -------------------------------------------------------------------------------- Average Local-loss : 0 Average Local-loss Ratio : 0.0000% Maximum Local-loss : 0 Maximum Local-loss Ratio : 0.0000% Minimum Local-loss : 0 Minimum Local-loss Ratio : 0.0000% Average Remote-loss : 0 Average Remote-loss Ratio : 0.0000% Maximum Remote-loss : 0 Maximum Remote-loss Ratio : 0.0000% Minimum Remote-loss : 0 Minimum Remote-loss Ratio : 0.0000%
- Configure single-ended proactive SLM on a PW between PEs.
Enable PE2 to receive SLM frames.
# Configure PE2.
[~PE2] cfm md md1 [~PE2-md-md1] ma ma1 [~PE2-md-md-ma-ma1] loss-measure single-ended-synthetic receive test-id 1 time-out 300 [*PE2-md-md1-ma-ma1] commit [~PE2-md-md1-ma-ma1] quit [~PE2-md-md1] quit
Enable PE1 to send SLM frames.
# Configure PE1.
[~PE1] cfm md md1 [~PE1-md-md1] ma ma1 [~PE1-md-md1-ma-ma1] loss-measure single-ended-synthetic continual send test-id 1 interval 1000 [*PE1-md-md1-ma-ma1] commit [~PE1-md-md1-ma-ma1] quit [~PE1-md-md1] quit
Verify the configuration.
Run the display y1731 statistic-type command on PE1 to view statistics about single-ended proactive SLM.
[~PE1] display y1731 statistic-type single-synthetic-loss test-id 1 -------------------------------------------------------------------------------- Index L-send R-send L-recv Unack L-loss R-loss L-loss-ratio R-loss-ratio -------------------------------------------------------------------------------- 1016 10 10 10 0 0 0 0.0000% 0.0000% 1017 10 10 10 0 0 0 0.0000% 0.0000% 1018 10 10 10 0 0 0 0.0000% 0.0000% 1019 10 10 10 0 0 0 0.0000% 0.0000% 1020 10 10 10 0 0 0 0.0000% 0.0000% 1021 10 10 10 0 0 0 0.0000% 0.0000% -------------------------------------------------------------------------------- Average Local-loss : 0 Average Local-loss Ratio : 0.0000% Maximum Local-loss : 0 Maximum Local-loss Ratio : 0.0000% Minimum Local-loss : 0 Minimum Local-loss Ratio : 0.0000% Average Remote-loss : 0 Average Remote-loss Ratio : 0.0000% Maximum Remote-loss : 0 Maximum Remote-loss Ratio : 0.0000% Minimum Remote-loss : 0 Minimum Remote-loss Ratio : 0.0000%
Configuration Files
PE1 configuration file
# sysname PE1 # FTP server enable # y1731 pm-mode enable cfm enable # mpls lsr-id 10.1.1.25 mpls # mpls l2vpn # mpls ldp # interface Eth-Trunk2 # interface Eth-Trunk2.1 vlan-type dot1q 1 l2 binding vsi ethoam # interface GigabitEthernet0/1/1 undo shutdown eth-trunk 2 # interface GigabitEthernet0/1/2 undo shutdown ip address 192.168.1.3 255.255.255.0 mpls mpls ldp # interface LoopBack0 ip address 10.1.1.25 255.255.255.255 # ospf 1 opaque-capability enable area 0.0.0.1 network 1.1.1.1 0.0.0.0 network 10.1.1.25 0.0.0.0 network 2.2.2.2 0.0.0.0 network 10.1.1.0 0.0.0.255 network 192.168.1.0 0.0.0.255 network 192.168.2.0 0.0.0.255 # cfm md md1 ma ma1 map vsi ethoam mep mep-id 1 interface Eth-Trunk2.1 inward mep ccm-send mep-id 1 enable remote-mep mep-id 2 remote-mep ccm-receive mep-id 2 enable test-id 1 mep 1 remote-mep 2 peer 10.1.1.24 loss-measure single-ended-synthetic continual send test-id 1 interval 1000 # return
PE2 configuration file
# sysname PE2 # cfm enable # mpls lsr-id 10.1.1.24 mpls # mpls l2vpn # mpls ldp # interface Eth-Trunk2 # interface Eth-Trunk2.1 vlan-type dot1q 1 l2 binding vsi ethoam # interface GigabitEthernet0/1/1 undo shutdown eth-trunk 2 # interface GigabitEthernet0/1/2 undo shutdown ip address 192.168.1.4 255.255.255.0 mpls mpls ldp # interface NULL0 # interface LoopBack0 ip address 10.1.1.24 255.255.255.255 # ospf 1 opaque-capability enable area 0.0.0.1 network 10.1.1.24 0.0.0.0 network 2.2.2.2 0.0.0.0 network 10.1.1.0 0.0.0.255 network 192.168.1.0 0.0.0.255 network 192.168.2.0 0.0.0.255 # cfm md md1 ma ma1 map vsi ethoam mep mep-id 2 interface Eth-Trunk2.1 inward mep ccm-send mep-id 2 enable remote-mep mep-id 1 remote-mep ccm-receive mep-id 1 enable test-id 1 mep 2 remote-mep 1 peer 10.1.1.25 loss-measure single-ended-synthetic receive test-id 1 time-out 300 # return