The mpls oam ingress command configures MPLS OAM parameters on the ingress of an LSP.
The undo mpls oam ingress command deletes MPLS OAM parameters configured on the ingress of an LSP.
This command varies in transport and router modes. For detailed differences, see Differences Between Commands in Transport and Router Modes. This topic describes the command configuration in router mode.
By default, the reverse tunnel works in shared mode.
mpls oam ingress { tunnelType tunnelNum | tunnelName } [ type { cv | ffd frequency { 3 | 10 | 20 | 50 | 100 | 200 | 500 } } ] [ backward-lsp { share | lsp-name lsp-name-value | lsr-id ip_addr tunnel-id rev-tunnel-id } ] [ compatibility-mode compati-mode-val ] [ bdi-frequency bdi-frep-value ] [ exp exp-value ]
undo mpls oam ingress { tunnelType tunnelNum | tunnelName }
| Parameter | Description | Value |
|---|---|---|
| tunnelType tunnelNum |
Specifies the tunnel type and number. |
- |
| type |
Indicates the type of OAM detection packets. |
By default, the type of detection packets is cv and the interval between sending CV packets is 1 second. |
| cv |
Indicates that the type of OAM detection packets is CV. |
- |
| ffd |
Indicates that the type of OAM detection packets is FFD. |
- |
| frequency |
Specifies the interval between sending FFD packets. |
The value is 3, 10, 20, 50, 100, 200 or 500, in milliseconds. If the egress does not receive OAM packets within a period of 3 times the specified interval, the egress considers the connection to the ingress faulty. |
| backward-lsp |
Indicates the working mode of a reverse LSP. The working mode can be share or private. In private mode, a reverse LSP can be specified by either lsp-name lsp-name or lsr-id rev-ingress-lsr-id tunnel-id rev-tunnel-id. |
- |
| share |
Indicates that a reverse LSP works in shared mode. |
- |
| lsp-name lsp-name-value |
Specifies the name of a static bidirectional CR-LSP. |
The value is a string of 1 to 19 characters, spaces not supported. If quotation marks are used at both ends of an entered character sting, you can enter spaces in the string. |
| lsr-id ip_addr |
Specifies the LSR ID of the ingress on a reverse LSP. |
- |
| tunnel-id rev-tunnel-id |
Specifies the tunnel ID of a reverse LSP. |
The value is an integer and the value range is 1 to 65535. |
| compatibility-mode |
Indicates the compatibility mode. |
- |
| compati-mode-val |
Indicates the router/PTN communication mode. |
The values are as follows:
|
| bdi-frequency |
Indicates the interval at which BDI packets are sent. |
- |
| bdi-frep-value |
Indicates that the interval at which BDI packets are sent is the same as that between sending OAM detection packets. Indicates that BDI packets are sent every second. |
The values are as follows:
|
| exp exp-value |
Specifies a forwarding priority for packets. |
The value is an integer ranging from 0 to 7. A larger value indicates a higher priority. The default value is 7. |
Usage Scenario
The MPLS OAM mechanism effectively detects and locates MPLS link faults. The MPLS OAM mechanism also triggers a protection switchover after detecting a fault. To configure MPLS OAM to monitor an LSP, you must configure MPLS OAM parameters on the ingress and egress. To configure MPLS OAM parameters on the ingress, run the mpls oam ingress command.
Prerequisites
MPLS OAM has been globally enabled using the mpls oam command.
Follow-up Procedure
Run the mpls oam ingress enable command to enable OAM.
<HUAWEI> system-view [~HUAWEI] interface tunnel 10 [*HUAWEI-Tunnel10] tunnel-protocol mpls te [*HUAWEI-Tunnel10] quit [*HUAWEI] mpls [*HUAWEI-mpls] mpls oam [*HUAWEI-mpls] quit [*HUAWEI] mpls oam ingress Tunnel 10 type ffd frequency 100