评分并提供意见反馈 :
华为采用机器翻译与人工审校相结合的方式将此文档翻译成不同语言，希望能帮助您更容易理解此文档的内容。 请注意：即使是最好的机器翻译，其准确度也不及专业翻译人员的水平。 华为对于翻译的准确性不承担任何责任，并建议您参考英文文档（已提供链接）。
配置双向时延统计功能示例（VLAN）
组网需求
随着网络的快速普及和应用的日益深入，各种增值业务（如IPTV，视频会议、VOIP等）得到了广泛部署，链路的连通性和网络性能的好坏直接影响着承载网络上的各种业务。因此，作为业务承载管道的性能检测显得尤为重要。
如图9-13所示，CE之间部署CFM检测链路的连通性。为了满足用户对视频业务质量的更高要求，用户希望在链路连通性检测的同时能够实时监控移动承载链路的双向时延性能，以便在视频业务质量下降时及时做出调整。
操作步骤
- 配置VLAN信息。
# 配置CE1设备
<HUAWEI> system-view [HUAWEI] sysname CE1 [CE1] vlan 2 [CE1-vlan2] quit [CE1] interface gigabitethernet 0/0/1 [CE1-GigabitEthernet0/0/1] port link-type trunk [CE1-GigabitEthernet0/0/1] port trunk allow-pass vlan 2 [CE1-GigabitEthernet0/0/1] quit
# 配置CE2设备
<HUAWEI> system-view [HUAWEI] sysname CE2 [CE2] vlan 2 [CE2-vlan2] quit [CE2] interface gigabitethernet 0/0/1 [CE2-GigabitEthernet0/0/1] port link-type trunk [CE2-GigabitEthernet0/0/1] port trunk allow-pass vlan 2 [CE2-GigabitEthernet0/0/1] quit
# 配置PE1设备
<HUAWEI> system-view [HUAWEI] sysname PE1 [PE1] vlan 2 [PE1-vlan2] quit [PE1] interface gigabitethernet 0/0/1 [PE1-GigabitEthernet0/0/1] port link-type trunk [PE1-GigabitEthernet0/0/1] port trunk allow-pass vlan 2 [PE1-GigabitEthernet0/0/1] quit [PE1] interface gigabitethernet 0/0/2 [PE1-GigabitEthernet0/0/2] port link-type trunk [PE1-GigabitEthernet0/0/2] port trunk allow-pass vlan 2 [PE1-GigabitEthernet0/0/2] quit
# 配置PE2设备
<HUAWEI> system-view [HUAWEI] sysname PE2 [PE2] vlan 2 [PE2-vlan2] quit [PE2] interface gigabitethernet 0/0/1 [PE2-GigabitEthernet0/0/1] port link-type trunk [PE2-GigabitEthernet0/0/1] port trunk allow-pass vlan 2 [PE2-GigabitEthernet0/0/1] quit [PE2] interface gigabitethernet 0/0/2 [PE2-GigabitEthernet0/0/2] port link-type trunk [PE2-GigabitEthernet0/0/2] port trunk allow-pass vlan 2 [PE2-GigabitEthernet0/0/2] quit
- 配置以太网CFM的基本功能，指定MEP类型为Outward型。
在CE1和CE2上配置以太网CFM的基本功能。指定以太网CFM协议为Standard2007标准版本，MD的名称是md3，MA的名称是ma3，并且配置MA与VLAN绑定。
# 配置CE1
[CE1] cfm enable [CE1] cfm version standard [CE1] cfm md md3 [CE1-md-md3] ma ma3 [CE1-md-md3-ma-ma3] map vlan 2 [CE1-md-md3-ma-ma3] mep mep-id 3 interface gigabitethernet 0/0/1 outward [CE1-md-md3-ma-ma3] mep ccm-send mep-id 3 enable [CE1-md-md3-ma-ma3] remote-mep mep-id 4 [CE1-md-md3-ma-ma3] remote-mep ccm-receive mep-id 4 enable [CE1-md-md3-ma-ma3] quit [CE1-md-md3] quit
# 配置CE2
[CE2] cfm enable [CE2] cfm version standard [CE2] cfm md md3 [CE2-md-md3] ma ma3 [CE2-md-md3-ma-ma3] map vlan 2 [CE2-md-md3-ma-ma3] mep mep-id 4 interface gigabitethernet 0/0/1 outward [CE2-md-md3-ma-ma3] mep ccm-send mep-id 4 enable [CE2-md-md3-ma-ma3] remote-mep mep-id 3 [CE2-md-md3-ma-ma3] remote-mep ccm-receive mep-id 3 enable [CE2-md-md3-ma-ma3] quit [CE2-md-md3] quit
- 验证CFM配置结果。
# 在CE1和CE2上执行命令display cfm remote-mep，可以查看到MEP信息。
[CE1] display cfm remote-mep The total number of RMEPs is : 1 The status of RMEPs : 1 up, 0 down, 0 disable -------------------------------------------------- MD Name : md3 Level : 0 MA Name : ma3 RMEP ID : 4 VLAN ID : 2 VSI Name : -- L2VC ID : -- MAC : 4c1f-cc6b-c208 CCM Receive : enabled Trigger-If-Down : disabled CFM Status : up Alarm Status : none Interface TLV : -- Connect Status : up
[CE2] display cfm remote-mep The total number of RMEPs is : 1 The status of RMEPs : 1 up, 0 down, 0 disable -------------------------------------------------- MD Name : md3 Level : 0 MA Name : ma3 RMEP ID : 3 VLAN ID : 2 VSI Name : -- L2VC ID : -- MAC : 0044-0141-5410 CCM Receive : enabled Trigger-If-Down : disabled CFM Status : up Alarm Status : none Interface TLV : -- Connect Status : up
- 在CE2设备上配置接收DMM报文功能。
# 配置CE2。
[CE2] cfm md md3 [CE2-md-md3] ma ma3 [CE2-md-md3-ma-ma3] delay-measure two-way receive mep 4 [CE2-md-md3-ma-ma3] quit [CE2-md-md3] quit
- 使能按需双向时延统计功能。
# 配置CE1。
[CE1] cfm md md3 [CE1-md-md3] ma ma3 [CE1-md-md3-ma-ma3] delay-measure two-way send mep 3 remote-mep 4 interval 1000 count 20 [CE1-md-md3-ma-ma3] quit [CE1-md-md3] quit
- 验证配置结果。
# 配置完成后，在CE1上执行display y1731 statistic-type twoway-delay md md3 ma ma3，可以看到双向时延的性能统计信息。
[CE1] display y1731 statistic-type twoway-delay md md3 ma ma3 Measurement Start Time : 2014-11-01 15:41:27 Latest two-way delay statistics: -------------------------------------------------------------------------------- Index Delay(usec) Delay variation(usec) -------------------------------------------------------------------------------- 1 442 - 2 417 25 3 435 18 4 579 144 5 429 150 6 428 1 7 432 4 8 437 5 9 439 2 10 435 4 11 585 150 12 443 142 13 441 2 14 510 69 15 456 54 16 445 11 17 435 10 18 435 0 19 451 16 20 601 150 -------------------------------------------------------------------------------- Average delay(usec) : 463 Average delay variation(usec) : 50 Maximum delay(usec) : 601 Maximum delay variation(usec) : 150 Minimum delay(usec) : 417 Minimum delay variation(usec) : 0
配置文件
CE1的配置文件
# sysname CE1 # vlan batch 2 # cfm enable # interface GigabitEthernet0/0/1 port link-type trunk port trunk allow-pass vlan 2 # cfm md md3 ma ma3 map vlan 2 mep mep-id 3 interface GigabitEthernet0/0/1 outward mep ccm-send mep-id 3 enable remote-mep mep-id 4 remote-mep ccm-receive mep-id 4 enable # return
CE2的配置文件
# sysname CE2 # vlan batch 2 # cfm enable # interface GigabitEthernet0/0/1 port link-type trunk port trunk allow-pass vlan 2 # cfm md md3 ma ma3 map vlan 2 mep mep-id 4 interface GigabitEthernet0/0/1 outward mep ccm-send mep-id 4 enable remote-mep mep-id 3 remote-mep ccm-receive mep-id 3 enable delay-measure two-way receive mep 4 # return
PE1的配置文件
# sysname PE1 # vlan batch 2 # interface GigabitEthernet0/0/1 port link-type trunk port trunk allow-pass vlan 2 # interface GigabitEthernet0/0/2 port link-type trunk port trunk allow-pass vlan 2 # return
PE2的配置文件
# sysname PE2 # vlan batch 2 # interface GigabitEthernet0/0/1 port link-type trunk port trunk allow-pass vlan 2 # interface GigabitEthernet0/0/2 port link-type trunk port trunk allow-pass vlan 2 # return
