Having replaced the suspect card and rebooted the host I see these messages in /var/log/messages repeated over and over: Aug 15 07:17:10 vhost01 ntpd[2044]: Listening on interface #62 eth1, fe80::20a:cdff:fe1d:32e7#123 Enabled Aug 15 07:17:10 vhost01 ntpd[2044]: Listening on interface #63 eth1, 192.168.216.41#123 Enabled Aug 15 07:19:41 vhost01 lldpad[1836]: evb_ifdown:port eth1 remove failed Aug 15 07:19:41 vhost01 lldpad[1836]: evb_ifdown:port eth1 remove failed Aug 15 07:19:41 vhost01 lldpad[1836]: evb_ifdown:port eth1 remove failed Aug 15 07:19:43 vhost01 ntpd[2044]: Deleting interface #62 eth1, fe80::20a:cdff:fe1d:32e7#123, interface stats: received=0, sent=0, dropped=0, active_time=153 secs Aug 15 07:19:43 vhost01 ntpd[2044]: Deleting interface #63 eth1, 192.168.216.41#123, interface stats: received=0, sent=0, dropped=0, active_time=153 secs Aug 15 07:20:13 vhost01 kernel: r8169 0000:01:00.0: eth1: RTL8168d/8111d at 0xffffc9001258c000, 00:0a:cd:1d:32:e7, XID 081000c0 IRQ 30 Aug 15 07:20:13 vhost01 kernel: r8169 0000:01:00.0: eth1: jumbo features [frames: 9200 bytes, tx checksumming: ko] Aug 15 07:20:14 vhost01 kernel: r8169 0000:01:00.0: eth1: invalid firwmare Aug 15 07:20:14 vhost01 kernel: r8169 0000:01:00.0: eth1: unable to load firmware patch rtl_nic/rtl8168d-1.fw (-22) Aug 15 07:20:14 vhost01 kernel: r8169 0000:01:00.0: eth1: link down Aug 15 07:20:14 vhost01 kernel: r8169 0000:01:00.0: eth1: link down Aug 15 07:20:14 vhost01 kernel: ADDRCONF(NETDEV_UP): eth1: link is not ready Aug 15 07:20:16 vhost01 kernel: r8169 0000:01:00.0: eth1: link up Aug 15 07:20:16 vhost01 kernel: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready Aug 15 07:20:20 vhost01 ntpd[2044]: Listening on interface #64 eth1, fe80::20a:cdff:fe1d:32e7#123 Enabled Aug 15 07:20:20 vhost01 ntpd[2044]: Listening on interface #65 eth1, 192.168.216.41#123 Enabled Aug 15 07:28:14 vhost01 lldpad[1836]: evb_ifdown:port eth1 remove failed Aug 15 07:28:14 vhost01 lldpad[1836]: evb_ifdown:port eth1 remove failed Aug 15 07:28:14 vhost01 lldpad[1836]: evb_ifdown:port eth1 remove failed Aug 15 07:28:16 vhost01 ntpd[2044]: Deleting interface #64 eth1, fe80::20a:cdff:fe1d:32e7#123, interface stats: received=0, sent=0, dropped=0, active_time=476 secs Aug 15 07:28:16 vhost01 ntpd[2044]: Deleting interface #65 eth1, 192.168.216.41#123, interface stats: received=0, sent=0, dropped=0, active_time=476 secs Aug 15 07:29:27 vhost01 kernel: r8169 0000:01:00.0: eth1: RTL8168d/8111d at 0xffffc90012588000, 00:0a:cd:1d:32:e7, XID 081000c0 IRQ 30 Aug 15 07:29:27 vhost01 kernel: r8169 0000:01:00.0: eth1: jumbo features [frames: 9200 bytes, tx checksumming: ko] Aug 15 07:29:27 vhost01 kernel: r8169 0000:01:00.0: eth1: invalid firwmare Aug 15 07:29:27 vhost01 kernel: r8169 0000:01:00.0: eth1: unable to load firmware patch rtl_nic/rtl8168d-1.fw (-22) Aug 15 07:29:27 vhost01 kernel: r8169 0000:01:00.0: eth1: link down Aug 15 07:29:27 vhost01 kernel: r8169 0000:01:00.0: eth1: link down Aug 15 07:29:27 vhost01 kernel: ADDRCONF(NETDEV_UP): eth1: link is not ready Aug 15 07:29:30 vhost01 kernel: r8169 0000:01:00.0: eth1: link up Aug 15 07:29:30 vhost01 kernel: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready Aug 15 07:29:33 vhost01 ntpd[2044]: Listening on interface #66 eth1, fe80::20a:cdff:fe1d:32e7#123 Enabled Aug 15 07:29:33 vhost01 ntpd[2044]: Listening on interface #67 eth1, 192.168.216.41#123 Enabled Aug 15 07:31:54 vhost01 lldpad[1836]: evb_ifdown:port eth1 remove failed Aug 15 07:31:54 vhost01 lldpad[1836]: evb_ifdown:port eth1 remove failed Aug 15 07:31:54 vhost01 lldpad[1836]: evb_ifdown:port eth1 remove failed Aug 15 07:31:55 vhost01 ntpd[2044]: Deleting interface #66 eth1, fe80::20a:cdff:fe1d:32e7#123, interface stats: received=0, sent=0, dropped=0, active_time=142 secs Aug 15 07:31:55 vhost01 ntpd[2044]: Deleting interface #67 eth1, 192.168.216.41#123, interface stats: received=0, sent=0, dropped=0, active_time=142 secs So, what is going on? This host is the first one of two nearly identically configured machines. The second host does not report or evidence any problem with its eth1. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB at Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3