Am 05.07.2015 um 21:13 schrieb Steven Tardy: > What is the upstream switch? If it is a Cisco switch does the configuration > have `spanning-tree portfast` enabled? > http://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/10553-12.html > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > It's a D-Link DGS-1210-16 Switch.