[ixpmanager] Polling issue with Huawei CE6870 (VRP 8.191) switch

[Alexander Kronenberg]

Greetings,
We have added Huawei CE6870 to our IX, but it couldn't be polled by the IXP
Manager (V6.2.0)

/srv/ixpmanager/artisan switch:snmp-poll sw3 -vvv
Polling sw3 with SNMP request to sw3
ERROR: OSS_SNMP exception polling switch ports for sw3 by SNMP

yet snmpget is working:
snmpget -c ******* -On -v 2c 10.20.0.2 .1.3.6.1.2.1.1.1.0
.1.3.6.1.2.1.1.1.0 = STRING: "Huawei Versatile Routing Platform Software
VRP (R) software, Version 8.191 (CE6870EI V200R019C10SPC800)
Copyright (C) 2012-2020 Huawei Technologies Co., Ltd.
HUAWEI CE6870-48S6CQ-EI
"
I've noticed that GetResponse is returning in HEX rather than ASCII (in
tcpdump), could it be an issue for IXP?

I've also updated
/srv/ixpmanager/vendor/opensolutions/oss-snmp/src/OSS_SNMP/Platforms/vendor_huawei.php
with this model, but looks like it's more for the auto-discovery model and
OS version.

Anything else I can do so IXP can poll its ports?
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