Example For Configuring Ais For An Lsp - Huawei NetEngine80E Configuration Manual - Reliability

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability

10.4.5 Example for Configuring AIS for an LSP

LSRs are connected using a bidirectional LSP. AIS needs to be configured to suppress alarm
generation.
Networking Requirements
On a traditional transport network, a circuit (such as a T1 line) spans multiple switching devices.
If a device or a link on the circuit becomes faulty, an alarm suppression message will be generated
immediately and protection switching will be triggered. The NE80E/40E uses AIS to suppress
alarms on an MPLS-TP network.
As shown in
The ais enable command is run to enable AIS for the MEG. If the server layer where the MEG
resides detects a fault, it will report an alarm to the NMS and then inform the client layer of the
fault. This can prevent higher-level network devices from sending the same alarm to the NMS.
Figure 10-9 Networking diagram for a bidirectional LSP
Loopback1
1.1.1.1/32
LSRA
Configuration Roadmap
The configuration roadmap is as follows:
1.
2.
Data Preparation
To complete the configuration, you need the following data:
l
l
Procedure
Step 1 Configure a bidirectional LSP.
Issue 02 (2011-09-10)
ip route-static 1.1.1.1 255.255.255.255 3.2.1.1
ip route-static 2.2.2.2 255.255.255.255 3.2.1.1
#
mpls-tp meg test
me te interface Tunnel2/0/0 mep-id 2 remote-mep-id 1
#
return
Figure 10-9, LSRA, LSRB, and LSRC are connected using a bidirectional LSP.
POS1/0/0 POS1/0/0
2.1.1.1/24 2.1.1.2/24
Create an ME and bind it to a bidirectional LSP.
Enable CC on the MEP and RMEP.
MEG name
Name of the TE tunnel bound to the ME
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Loopback1
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POS2/0/0
3.2.1.1/24
LSRB
10 MPLS-TP OAM Configuration
Loopback1
3.3.3.3/32
POS1/0/0
3.2.1.2/24
LSRC
702