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配置基于VLAN的CFM基本功能示例（二层网络）
组网需求
如图8-19所示，设备之间配置VLAN信息，实现二层互通，UPE2和UPE3互为主备设备。用户希望能够实时检测链路：
UPE1到UPE2之间链路的连通性检测。
UPE2到PEAGG之间链路的连通性检测。
操作步骤
- 配置VLAN信息。
# 配置UPE1设备
<HUAWEI> system-view [HUAWEI] sysname UPE1 [UPE1] vlan 2 [UPE1-vlan2] quit [UPE1] interface gigabitethernet 0/0/1 [UPE1-GigabitEthernet0/0/1] port link-type trunk [UPE1-GigabitEthernet0/0/1] port trunk allow-pass vlan 2 [UPE1-GigabitEthernet0/0/1] quit [UPE1] interface gigabitethernet 0/0/2 [UPE1-GigabitEthernet0/0/2] port link-type trunk [UPE1-GigabitEthernet0/0/2] port trunk allow-pass vlan 2 [UPE1-GigabitEthernet0/0/2] quit
# 配置UPE2设备
<HUAWEI> system-view [HUAWEI] sysname UPE2 [UPE2] vlan 2 [UPE2-vlan2] quit [UPE2] interface gigabitethernet 0/0/1 [UPE2-GigabitEthernet0/0/1] port link-type trunk [UPE2-GigabitEthernet0/0/1] port trunk allow-pass vlan 2 [UPE2-GigabitEthernet0/0/1] quit [UPE2] interface gigabitethernet 0/0/2 [UPE2-GigabitEthernet0/0/2] port link-type trunk [UPE2-GigabitEthernet0/0/2] port trunk allow-pass vlan 2 [UPE2-GigabitEthernet0/0/2] quit
# 配置UPE3设备
<HUAWEI> system-view [HUAWEI] sysname UPE3 [UPE3] vlan 2 [UPE3-vlan2] quit [UPE3] interface gigabitethernet 0/0/1 [UPE3-GigabitEthernet0/0/1] port link-type trunk [UPE3-GigabitEthernet0/0/1] port trunk allow-pass vlan 2 [UPE3-GigabitEthernet0/0/1] quit [UPE3] interface gigabitethernet 0/0/2 [UPE3-GigabitEthernet0/0/2] port link-type trunk [UPE3-GigabitEthernet0/0/2] port trunk allow-pass vlan 2 [UPE3-GigabitEthernet0/0/2] quit
# 配置PEAGG设备
<HUAWEI> system-view [HUAWEI] sysname PEAGG [PEAGG] vlan 2 [PEAGG-vlan2] quit [PEAGG] interface gigabitethernet 0/0/1 [PEAGG-GigabitEthernet0/0/1] port link-type trunk [PEAGG-GigabitEthernet0/0/1] port trunk allow-pass vlan 2 [PEAGG-GigabitEthernet0/0/1] quit [PEAGG] interface gigabitethernet 0/0/2 [PEAGG-GigabitEthernet0/0/2] port link-type trunk [PEAGG-GigabitEthernet0/0/2] port trunk allow-pass vlan 2 [PEAGG-GigabitEthernet0/0/2] quit
- 配置CFM基本功能
# 在UPE1设备上配置CFM基本功能。
[UPE1] cfm version standard [UPE1] cfm enable [UPE1] cfm md md [UPE1-md-md] ma ma [UPE1-md-md-ma-ma] map vlan 2 [UPE1-md-md-ma-ma] mep mep-id 1 interface gigabitethernet 0/0/2 outward [UPE1-md-md-ma-ma] mep ccm-send mep-id 1 enable [UPE1-md-md-ma-ma] remote-mep mep-id 2 [UPE1-md-md-ma-ma] remote-mep ccm-receive mep-id 2 enable [UPE1-md-md-ma-ma] quit [UPE1-md-md] quit
# 在PEAGG设备上配置CFM基本功能。
[PEAGG] cfm version standard [PEAGG] cfm enable [PEAGG] cfm md md [PEAGG-md-md] ma ma [PEAGG-md-md-ma-ma] map vlan 2 [PEAGG-md-md-ma-ma] mep mep-id 2 interface gigabitethernet 0/0/2 outward [PEAGG-md-md-ma-ma] mep ccm-send mep-id 2 enable [PEAGG-md-md-ma-ma] remote-mep mep-id 1 [PEAGG-md-md-ma-ma] remote-mep ccm-receive mep-id 1 enable [PEAGG-md-md-ma-ma] quit [PEAGG-md-md] quit
上述配置完成后，在UPE1和PEAGG设备上执行命令display cfm remote-mep，可以查看到MEP信息。
[UPE1] display cfm remote-mep The total number of RMEPs is : 1 The status of RMEPs : 1 up, 0 down, 0 disable -------------------------------------------------- MD Name : md Level : 0 MA Name : ma RMEP ID : 2 VLAN ID : 2 VSI Name : -- L2VC ID : -- MAC : 00e0-0003-0003 CCM Receive : enabled Trigger-If-Down : disabled CFM Status : up Alarm Status : none Interface TLV : -- Connect Status : up
配置文件
UPE1的配置文件
# sysname UPE1 # vlan batch 2 # cfm enable # 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 # cfm md md ma ma map vlan 2 mep mep-id 1 interface GigabitEthernet0/0/2 outward mep ccm-send mep-id 1 enable remote-mep mep-id 2 remote-mep ccm-receive mep-id 2 enable # return
UPE2的配置文件
# sysname UPE2 # 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
UPE3的配置文件
# sysname UPE3 # 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
PEAGG的配置文件
# sysname PEAGG # vlan batch 2 # cfm enable # 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 # cfm md md ma ma map vlan 2 mep mep-id 2 interface GigabitEthernet0/0/2 outward mep ccm-send mep-id 2 enable remote-mep mep-id 1 remote-mep ccm-receive mep-id 1 enable # return
