Example for Configuring Single-ended Frame Loss Measurement in BD EVPN Networking
This section provides an example for configuring single-ended frame loss measurement in BD EVPN networking.
Networking Requirements
As networks rapidly develop and applications diversify, various value-added services, such as IPTV, video conferencing, and VoIP, are widely deployed. A link connectivity fault or network performance deterioration directly affects services on a live network. Therefore, performance monitoring is especially important for service transport.
As shown in Figure 1, PE1 and PE2 are connected through an EVPN, and CE1 and CE2 are connected to the EVPN through a BD. CFM is configured between each PE and its attached CE. CCMs are not used to monitor link connectivity, preventing them from consuming a lot of bandwidth resources. To provide higher-quality voice services, a carrier expects to monitor frame loss performance on mobile transport links in real time so that they can promptly respond to calling service quality deterioration.
Configuration Roadmap
Configure on-demand single-ended frame loss measurement for the service path between PE1 and CE1 to collect frame loss statistics.
Configure proactive single-ended frame loss measurement for the service path between PE2 and CE2 to continuously collect frame loss statistics.
Data Preparation
To complete the configuration, you need the following data:
- ID of the VLAN to which each CE interface belongs
- EVPN instance name (evpna), RT value, and RD value configured on each PE
Names of the MD and MA on CE1 and PE1 and on CE2 and PE2 when basic CFM functions are configured
Interval at which LMMs are sent and the number of times that an LMM is sent in on-demand single-ended frame loss measurement
Procedure
- Configure on-demand single-ended frame loss measurement for the service path between PE1 and CE1.
Configure access to an EVPN through a BD.
An EVPN is configured between PE1 and PE2. CE1 and CE2 access the EVPN network through a BD. For details, see the Configuring BD-EVPN Functions or configuration files in this configuration example.
Configure basic Ethernet CFM functions and specify the MEP type as outward.
Configure basic Ethernet CFM functions on CE1 and PE1. 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 EVPN instance.
# Configure CE1.
<HUAWEI> system-view [~HUAWEI] sysname CE1 [*HUAWEI] commit [~CE1] interface gigabitethernet0/1/1 [~CE1-GigabitEthernet0/1/1] portswitch [*CE1-GigabitEthernet0/1/1] undo shutdown [*CE1-GigabitEthernet0/1/1] port trunk allow-pass vlan 2 [*CE1-GigabitEthernet0/1/1] quit [*CE1] cfm enable [*CE1] cfm md md1 [*CE1-md-md1] ma ma1 [*CE1-md-md1-ma-ma1] map vlan 2 [*CE1-md-md1-ma-ma1] mep mep-id 2 interface gigabitethernet0/1/1 outward [*CE1-md-md1-ma-ma1] mep ccm-send mep-id 2 enable [*CE1-md-md1-ma-ma1] remote-mep mep-id 1 [*CE1-md-md1-ma-ma1] remote-mep ccm-receive mep-id 1 enable [*CE1-md-md1-ma-ma1] test-id 1 mep 2 [*CE1-md-md1-ma-ma1] commit
# Configure PE1.
<HUAWEI> system-view [~HUAWEI] sysname PE1 [*HUAWEI] commit [~PE1] cfm enable [*PE1] commit [~PE1] cfm md md1 [*PE1-md-md1] ma ma1 [*PE1-md-md1-ma-ma1] map bridge-domain 10 [*PE1-md-md1-ma-ma1] mep mep-id 1 interface gigabitethernet0/1/1.1 outward [*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 [*PE1-md-md1-ma-ma1] commit
Enable CE1 to receive LMMs.
# CE1
[~CE1-md-md1-ma-ma1] loss-measure single-ended receive test-id 1 [*CE1-md-md1-ma-ma1] quit [*CE1-md-md1] quit [*CE1] commit
Enable on-demand single-ended frame loss measurement in BD EVPN networking.
# Configure PE1.
[~PE1-md-md1-ma-ma1] loss-measure single-ended send test-id 1 interval 1000 count 20 [*PE1-md-md1-ma-ma1] quit [*PE1-md-md1] quit
Verify the configuration.
Run the display y1731 statistic-type command on PE1 to check single-end frame loss statistics.
[~PE1] display y1731 statistic-type single-loss Latest single-ended loss statistics of test-id 1: -------------------------------------------------------------------------------- Index Local-loss Local-loss ratio Remote-loss Remote-loss ratio -------------------------------------------------------------------------------- 1 0 0.0000% 0 0.0000% 2 0 0.0000% 0 0.0000% 3 0 0.0000% 0 0.0000% 4 0 0.0000% 0 0.0000% 5 0 0.0000% 0 0.0000% 6 0 0.0000% 0 0.0000% 7 0 0.0000% 0 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 proactive single-ended frame loss measurement for the service path between PE2 and CE2.
To continuously collect statistics about frame loss on a link, configure proactive single-ended frame loss measurement for the service path between a PE and CE.
Configure basic Ethernet CFM functions and specify the MEP type as outward.
Configure basic Ethernet CFM functions on CE2 and PE2. 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 EVPN instance.
# Configure CE2.
<HUAWEI> system-view [~HUAWEI] sysname CE2 [*HUAWEI] commit [~CE2] interface gigabitethernet0/1/1 [~CE2-GigabitEthernet0/1/1] portswitch [*CE2-GigabitEthernet0/1/1] undo shutdown [*CE2-GigabitEthernet0/1/1] port trunk allow-pass vlan 2 [*CE2-GigabitEthernet0/1/1] quit [*CE2] cfm enable [*CE2] cfm md md1 [*CE2-md-md1] ma ma1 [*CE2-md-md1-ma-ma1] map vlan 2 [*CE2-md-md1-ma-ma1] mep mep-id 4 interface gigabitethernet0/1/1 outward [*CE2-md-md1-ma-ma1] mep ccm-send mep-id 4 enable [*CE2-md-md1-ma-ma1] remote-mep mep-id 3 [*CE2-md-md1-ma-ma1] remote-mep ccm-receive mep-id 3 enable [*CE2-md-md1-ma-ma1] test-id 2 mep 4 [*CE2-md-md1-ma-ma1] commit
# Configure PE2.
<HUAWEI> system-view [~HUAWEI] sysname PE2 [*HUAWEI] commit [~PE2] cfm enable [*PE2] commit [~PE2] cfm md md1 [*PE2-md-md1] ma ma1 [*PE2-md-md1-ma-ma1] map bridge-domain 10 [*PE2-md-md1-ma-ma1] mep mep-id 3 interface gigabitethernet0/1/1.1 outward [*PE2-md-md1-ma-ma1] mep ccm-send mep-id 3 enable [*PE2-md-md1-ma-ma1] remote-mep mep-id 4 [*PE2-md-md1-ma-ma1] remote-mep ccm-receive mep-id 4 enable [*PE2-md-md1-ma-ma1] test-id 2 mep 3 remote-mep 4 [*PE2-md-md1-ma-ma1] commit
Enable CE2 to receive LMMs.
# Configure CE2.
[~CE2] cfm md md1 [*CE2-md-md1] ma ma1 [*CE2-md-md1-ma-ma1] loss-measure single-ended receive test-id 2 [*CE2-md-md1-ma-ma1] quit [*CE2-md-md1] quit [*CE2] commit
Enable proactive single-ended frame loss measurement in BD EVPN networking.
# Configure PE2.
[~PE2] cfm md md1 [*PE2-md-md1] ma ma1 [*PE2-md-md1-ma-ma1] loss-measure single-ended continual send test-id 2 interval 30000 [*PE2-md-md1-ma-ma1] quit [*PE2-md-md1] quit [*PE2] commit
Verify the configuration.
After completing the configuration, run the display y1731 statistic-type command on PE2 to check statistics about single-ended frame loss.
[~PE2] display y1731 statistic-type single-loss Latest single-ended loss statistics of test-id 2: -------------------------------------------------------------------------------- Index Local-loss Local-loss ratio Remote-loss Remote-loss ratio -------------------------------------------------------------------------------- 1 0 0.0000% 0 0.0000% 2 0 0.0000% 0 0.0000% 3 0 0.0000% 0 0.0000% 4 0 0.0000% 0 0.0000% 5 0 0.0000% 0 0.0000% 6 0 0.0000% 0 0.0000% 7 0 0.0000% 0 0.0000% 8 0 0.0000% 0 0.0000% 9 0 0.0000% 0 0.0000% 10 0 0.0000% 0 0.0000% 11 0 0.0000% 0 0.0000% 12 0 0.0000% 0 0.0000% 13 0 0.0000% 0 0.0000% 14 0 0.0000% 0 0.0000% 15 0 0.0000% 0 0.0000% 16 0 0.0000% 0 0.0000% 17 0 0.0000% 0 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
CE1 configuration file
# sysname CE1 # vlan batch 2 # cfm version standard cfm enable # interface GigabitEthernet0/1/1 portswitch undo shutdown port trunk allow-pass vlan 2 # cfm md md1 ma ma1 map vlan 2 mep mep-id 2 interface GigabitEthernet0/1/1 outward 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 loss-measure single-ended receive test-id 1 # return
PE1 configuration file
# sysname PE1 # cfm enable # evpn vpn-instance evpna bd-mode route-distinguisher 100:1 vpn-target 1:1 export-extcommunity vpn-target 1:1 import-extcommunity # bridge-domain 10 evpn binding vpn-instance evpna # interface GigabitEthernet0/1/1.1 mode l2 encapsulation dot1q vid 2 rewrite pop single bridge-domain 10 # cfm md md1 ma ma1 map bridge-domain 10 mep mep-id 1 interface GigabitEthernet0/1/1.1 outward 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 loss-measure single-ended send test-id 1 interval 1000 count 20 # return
CE2 configuration file
# sysname CE2 # vlan batch 2 # cfm version standard cfm enable # interface GigabitEthernet0/1/1 portswitch undo shutdown port trunk allow-pass vlan 2 # cfm md md1 ma ma1 map vlan 2 mep mep-id 4 interface GigabitEthernet0/1/1 outward mep ccm-send mep-id 4 enable remote-mep mep-id 3 remote-mep ccm-receive mep-id 3 enable test-id 2 mep 4 loss-measure single-ended receive test-id 2 # return
PE2 configuration file
# sysname PE2 # cfm enable # evpn vpn-instance evpna bd-mode route-distinguisher 200:1 vpn-target 1:1 export-extcommunity vpn-target 1:1 import-extcommunity # bridge-domain 10 evpn binding vpn-instance evpna # interface GigabitEthernet0/1/1.1 mode l2 encapsulation dot1q vid 2 rewrite pop single bridge-domain 10 # cfm md md1 ma ma1 map bridge-domain 10 mep mep-id 3 interface GigabitEthernet0/1/1.1 outward mep ccm-send mep-id 3 enable remote-mep mep-id 4 remote-mep ccm-receive mep-id 4 enable test-id 2 mep 3 remote-mep 4 loss-measure single-ended continual send test-id 2 interval 30000 # return