H3C S9500 Series Operation Manual page 997

Operation Manual – MPLS OAM
H3C S9500 Series Routing Switches
Note:
This operation also can be used for modifying MPLS OAM parameters.
The configuration of MPLS OAM parameters takes effect only after the MPLS OAM
function is enabled. You must first enable the MPLS OAM function on the ingress
node and then on the egress node. Otherwise, the egress node will generate an
alert.
1.2.3 Configuring a Protection Group
I. Configuration Prerequisites
1) Application environment
In an environment with higher demand on network performance, a protection channel is
reserved so that transmission of data flows can be restored rapidly after the primary
LSP failed.
2) Configuration preparation
To configure a protection group, perform the following tasks:
Enable MPLS;
Create the primary static LSP and the secondary static LSP.
3) Data preparation
To configure a protection group, prepare the following data:
Table 1-5 Data preparation
Number
1
2
3
4
Note that:
1) This operation also can be used for modifying protection group parameters.
2) Switch back means that after the primary LSP recovered from a fault, data flows
are switched from the secondary LSP back to the primary LSP.
3) FIB entries are not updated when data flows are switched from the primary LSP to
the secondary LSP. By querying the primary and secondary LSPs and the
protection group, you can view the forwarding information of the current LSP (for
instance, next hop, outbounding interface).
Protection group ID
Name of the primary LSP in the protection group
Name of the secondary LSP in the protection group
Protection group parameters, for instance, Hold off time, switch
back mode and WTR time
1-9
Chapter 1 MPLS OAM Configuration
Data