[srsran-users] srsRAN 4G with ZMQ When EPC and eNB are Separated

[Chao-Hwa Chen]

Thank you very much, Iman.

It is working now. I noticed that when pinging, while tun_srsue network is
at the UE side, srs_spgw_sgi is still at the EPC side.

On Fri, Mar 31, 2023 at 5:23 AM Iman Mohammadi <
iman.mohammadi.telecom at gmail.com> wrote:

> Hi,
>
> For "enb.gtp_bind_addr" and "enb.s1c_bind_addr" , you should specify IP
> address of eNB VM, those addresses are for eNB not for EPC.
>
> Best Regards
> Iman Mohammadi
> Mobile: +989354019601
>
> On Fri, Mar 31, 2023, 12:28 Chao-Hwa Chen <chaohwa at gmail.com> wrote:
>
>> Hi all,
>>
>> I would like to have EPC and eNB with different Linux hosts. I followed
>> the suggestion (see
>> https://lists.srsran.com/pipermail/srsran-users/2019-June/002674.html).
>> At the EPC side, I type
>> ./srsepc/src/srsepc --mme.mme_bind_addr=(EPC host IP)
>> --spgw.gtpu_bind_addr=(EPC host IP)
>>
>> At the eNB side, I type
>> ./srsenb/src/srsenb --rf.device_name=zmq
>> --rf.device_args="fail_on_disconnect=true,tx_port=tcp://*:2000,rx_port=tcp://(UE
>> host IP):2001,id=enb,base_srate=23.04e6" --enb.mme_addr=(EPC host IP)
>> --enb.gtp_bind_addr=(EPC host IP) --enb.s1c_bind_addr=(EPC host IP)
>>
>> There is no connection reaction from the EPC side and at the eNB, it
>> shows the following:
>> Built in Release mode using commit 00c972ac4 on branch master.
>>
>> bind(): Cannot assign requested address
>> Failed to bind on address (EPC host IP), port 2152: Cannot assign
>> requested address
>> Error initializing EUTRA stack.
>> Opening 1 channels in RF device=zmq with
>> args=fail_on_disconnect=true,tx_port=tcp://*:2000,rx_port=tcp://(UE host
>> IP):2001,id=enb,base_srate=23.04e6
>> Supported RF device list: soapy zmq file
>> CHx base_srate=23.04e6
>> CHx id=enb
>> Current sample rate is 1.92 MHz with a base rate of 23.04 MHz (x12
>> decimation)
>> bind(): Cannot assign requested address
>> CH0 rx_port=tcp://(UE host IP):2001
>> CH0 tx_port=tcp://*:2000
>> CH0 fail_on_disconnect=true
>>
>> How should I fix this issue?
>>
>> Thanks a lot in advance.
>>
>> Best Regards,
>>
>> Chao-Hwa
>> _______________________________________________
>> srsran-users mailing list
>> srsran-users at lists.srsran.com
>> https://lists.srsran.com/mailman/listinfo/srsran-users
>>
>

-- 
Best Regards,

Chao-Hwa
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