Extreme summit X450 - automatic reboot

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Hello,

in our network, we have couple of Extreme summit X450 switches with 10Gbit uplinks. Yesterday two of the your switches has automatickaly rebooted with this reason found in logs:

05:23:49.40 <Warn:EPM.Msg.hello_rate> Process bgp sends hello too often, expected once in 2 secs
05:23:49.40 <Warn:EPM.hello_rate> Received hellos from process bgp 2 more often then expected 3

But whe have BGP disabled -> "show bgp":
Enabled : No OperStatus : Down
RouterId : 0.0.0.0 As : 0
LocalPref : 100 MED : None
Always-Compare-MED : Disabled Aggregation : Disabled
Route Reflector : No RR ClusterId : 0
IGP Synchronization : Disabled New Community Format: Disabled
Routes from EBGP : 0 Routes from IBGP : 0
Routes redistributed: 0 Out Updates queued : 0
ConfedId : 0 MPLS LSP as Next-Hop: No
Confed Peers :
Networks : 0
Aggregate Networks : 0
Redistribute:
ipv4 Admin Operational Shutdown Policy
unicast Status Status Priority
----------------------------------------------------
Direct Disabled Down 2048 None
Static Disabled Down 2048 None
RIP Disabled Down 2048 None
OSPFIntra Disabled Down 2048 None
OSPFInter Disabled Down 2048 None
OSPFExt1 Disabled Down 2048 None
OSPFExt2 Disabled Down 2048 None

ipv4 Admin Operational Shutdown Policy
multicast Status Status Priority
----------------------------------------------------
Direct Disabled Down 2048 None
Static Disabled Down 2048 None
RIP Disabled Down 2048 None
OSPFIntra Disabled Down 2048 None
OSPFInter Disabled Down 2048 None
OSPFExt1 Disabled Down 2048 None
OSPFExt2 Disabled Down 2048 None

Any suggestion what to do to avoid the reboot in the future?

Thank you,

Best regards,
Pavol