Juniper EX – LLDP Crash

I ran into an issue with LLDP on a virtual chassis of EX4200 switches. When enabling LLDP and LLDP-MED, the LLDP process would constantly crash and restart. Each time it crashes it was creating a core dump. In the messages log file I could see these errors:

The configuration I had was nothing special:

As a work around, deleting lldp-med fixes the issue, after that no more crashing of LLDP.

This is most likely a bug with the JunOS release running on these switches, 12.3R4.6. It is an old release which I have not had a chance to upgrade yet, other virtual chassis on newer releases do not experience the same issue.

Posted in Juniper.

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