Huawei Airbridge BTS3606E Commissioning Manual page 19

Airbridge BTS3606E&3606AE
System Commissioning Guide
The following details three modes for setting up OMLs.
The process of setting up the OML in ATM over E1/T1 mode is as follows:
Step 1 When the BTS is started, the BCKM sends a BOOTP request to the CMUX of the BSC.
Step 2 The CMUX writes into the BOOTP frame the information of the transmission channel and
transfers the information to the BAM.
This information is used as the address parameters of the client BTS and is called BOOTP
information.
Step 3 After receiving the BOOTP request, the BAM obtains the BTS ID according to the BOOTP
information (execute the command ADD BTSBTPINFO to map the BTS ID to the BOOTP
information).
Step 4 The BAM obtains the maintenance IP address of the BTS according to the BTS ID (execute
the command ADD BTS to map the BTS ID to the maintenance IP address).
Step 5 The BAM writes the maintenance IP address into the BOOTP response frame and sends the
frame to the BTS.
Step 6 After obtaining the maintenance IP address, the BTS sends a request for setting up a TCP link
to the BAM.
Step 7 The BAM receives this request and sets up the OML from the BTS to the BAM.
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In the case of setting up the OML through the E1/T1 link in the IP transmission mode, after
two BOOTP requests, the BTS obtains the IP address of the BCIM, routing information, and
maintenance IP address of the BTS.
For the details of the BOOT requests of the BCKM, see the description of setting up the OML
in ATM over E1/T1 mode in 3.2.2 "Description of the BTS Startup Process."
The process of setting up the OML in IP over E1/T1 mode is as follows:
Step 1 When the BTS is started, the BCIM sends the PPP setup request to the BSC. After obtaining
the PPP IP address, the BTS sets up a PPP connection with the BSC.
Step 2 The BCIM sends a BOOTP request to the CBPE of the BSC.
Step 3 After receiving the BOOTP request, the CBPE obtains the IP address and routing information
of the BCIM from the BOOTP transmission channel.
Step 4 The CBPE writes the maintenance IP address of the BCIM into the BOOTP response frame
and sends it to the BCIM.
Step 5 The BCKM sends the BOOTP request to the BSC and obtains the maintenance IP address of
the BTS.
Step 6 After obtaining the maintenance IP address, the BTS sends a request for setting up a TCP link
to the BAM.
Issue 02 (2006-10-10)
If the OML cannot be set up during the BTS startup, the BTS restarts five minutes later. If the OML
is interrupted when the BTS is processing services, the BTS sets up the OML repeatedly but the BTS
do not restart.
Before querying the status of the CTRM/OMTR, ensure that the status of the CCPM/CECM is
normal.
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3 Commissioning Process
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