Are Extreme-switches supported in NAV?

Hi,

I have installed the latest version of NAV (4.8.6) and have added some of our Extreme switches. SNMPv2-MIB :: sysDescr.0 = STRING: ExtremeXOS (X440-48p-10G) version 16.2.2.4 16.2.2.4-patch1-3 by release-manager on Fri Feb 17 08:00:10 EST 2017

However, I get the following error message in the log file ipdevpoll.log --- 2019-01-24 11: 33: 09,664 [WARNING nav.mibs.entity_mib.entitymib] [statuscheck ex035.inet.hb.se] device response has bad table index .19.48 in ENTITY-MIB :: entPhysicalTable, ignoring --- What does this mean? Is there a solution? Are extreme switches supported by NAV?

Sincerely Per-Olof Axelsson University of Borås