IOL Crashes after a few minutes

[r4z13l]

Hi Community,

i have a bare metal eve-ng installation (HP Gen8, 12 Core Intel Xeon, 48 GB RAM).
I´ve i´m running "larg" LAB (4+ IOL Routers) some routers can´t be manageded via telenet/console anymore.
I also see, that a least one core is allways running with 100% load if a router "crashed). Established neigbohrships (BGP, EIGRP or OSPF) remain stable and active.


I had the same issue with 2+ IOL Routers and toggeld the following two values:
root@eve-ng:~# cat /sys/devices/virtual/net/virbr0/bridge/multicast_querier
0 (was 1)
root@eve-ng:~# cat /sys/devices/virtual/net/virbr0/bridge/multicast_snooping
1 (was 0)


dmesg output:
[42528.316069] perf: interrupt took too long (24592 > 23216), lowering kernel.perf_event_max_sample_rate to 8000
[73999.618873] vnet1_2: port 1(vunl1_6_16) entered blocking state
[73999.618876] vnet1_2: port 1(vunl1_6_16) entered disabled state
[73999.619032] device vunl1_6_16 entered promiscuous mode


uname -a
Linux eve-ng 4.9.40-eve-ng-ukms-2+ #4 SMP Fri Sep 15 02:07:02 CEST 2017 x86_64 x86_64 x86_64 GNU/Linux

Has anyone an idea how i can resolve this issue?

regards, r4

[Uldis (UD)]

first tip..
Make sure you DO NOT using IOL 15.5.2T
this image makes issues a lot
change image, wipe and start

[r4z13l]

Hi Uldis,

THX A LOT! Now everithing works as expected
Time to prepare for 300-135 Exam next month.

This topic can be marked as solved

regards, r4