I have 2 4500x switches which are coupled as one logical unit with VSS technologie.
And in the event log I see that this switch keeps rediscovering 'new' (in fact old) peers every 30 minutes like so:
Maybe netxms is getting confused by the fact that this switch is a logical stack of 2 switches that are connected by te1/0/47, te1/0/48 on both switches.
And in the event log I see that this switch keeps rediscovering 'new' (in fact old) peers every 30 minutes like so:
Quote
18399 25.10.2016 08:40:59 core-sw 0 SYS_IF_PEER_CHANGED Normal New peer for interface Te1/1/11 is switch9 interface te1/0/48 (A8:F9:4B:95:C7:30) 0
18398 25.10.2016 08:40:59 switch9 0 SYS_IF_PEER_CHANGED Normal New peer for interface te1/0/48 is core-sw interface Te1/1/11 (7C:0E:CE:25:50:22) 0
18397 25.10.2016 08:40:59 core-sw 0 SYS_IF_PEER_CHANGED Normal New peer for interface Te2/1/11 is switch9 interface te1/0/47 (A8:F9:4B:95:C7:2F) 0
18396 25.10.2016 08:40:59 switch9 0 SYS_IF_PEER_CHANGED Normal New peer for interface te1/0/47 is core-sw interface Te2/1/11 (58:F3:9C:96:0B:FA) 0
18395 25.10.2016 08:39:37 core-sw 0 SYS_IF_PEER_CHANGED Normal New peer for interface Te1/1/12 is switch92 interface te1/0/48 (A8:F9:4B:E8:05:F0) 0
18394 25.10.2016 08:39:37 switch92 0 SYS_IF_PEER_CHANGED Normal New peer for interface te1/0/48 is core-sw interface Te1/1/12 (7C:0E:CE:25:50:23) 0
18393 25.10.2016 08:39:37 core-sw 0 SYS_IF_PEER_CHANGED Normal New peer for interface Te2/1/12 is switch92 interface te1/0/47 (A8:F9:4B:E8:05:EF) 0
18392 25.10.2016 08:39:37 switch92 0 SYS_IF_PEER_CHANGED Normal New peer for interface te1/0/47 is core-sw interface Te2/1/12 (58:F3:9C:96:0B:FB) 0
18391 25.10.2016 08:39:19 rt2 0 SYS_IF_PEER_CHANGED Normal New peer for interface Gi0/0/2.2365 is switch1 interface Gi4/5 (00:0D:65:04:25:1E) 0
18390 25.10.2016 08:39:19 switch1 0 SYS_IF_PEER_CHANGED Normal New peer for interface Gi4/5 is rt2 interface Gi0/0/2.2365 (88:43:E1:1D:D9:02) 0
18389 25.10.2016 08:32:13 rt2 0 SYS_IF_PEER_CHANGED Normal New peer for interface Gi0/0/2.2365 is switch3 interface Gi0/2 (88:F0:77:D1:20:02) 0
18388 25.10.2016 08:32:13 switch3 0 SYS_IF_PEER_CHANGED Normal New peer for interface Gi0/2 is rt2 interface Gi0/0/2.2365 (88:43:E1:1D:D9:02) 0
18387 25.10.2016 08:10:50 core-sw 0 SYS_IF_PEER_CHANGED Normal New peer for interface Te1/1/11 is switch9 interface te1/0/48 (A8:F9:4B:95:C7:30) 0
18386 25.10.2016 08:10:50 switch9 0 SYS_IF_PEER_CHANGED Normal New peer for interface te1/0/48 is core-sw interface Te1/1/11 (7C:0E:CE:25:50:22) 0
18385 25.10.2016 08:10:50 core-sw 0 SYS_IF_PEER_CHANGED Normal New peer for interface Te2/1/11 is switch9 interface te1/0/47 (A8:F9:4B:95:C7:2F) 0
18384 25.10.2016 08:10:50 switch9 0 SYS_IF_PEER_CHANGED Normal New peer for interface te1/0/47 is core-sw interface Te2/1/11 (58:F3:9C:96:0B:FA) 0
18383 25.10.2016 08:09:32 core-sw 0 SYS_IF_PEER_CHANGED Normal New peer for interface Te1/1/12 is switch92 interface te1/0/48 (A8:F9:4B:E8:05:F0) 0
18382 25.10.2016 08:09:32 switch92 0 SYS_IF_PEER_CHANGED Normal New peer for interface te1/0/48 is core-sw interface Te1/1/12 (7C:0E:CE:25:50:23) 0
18381 25.10.2016 08:09:32 core-sw 0 SYS_IF_PEER_CHANGED Normal New peer for interface Te2/1/12 is switch92 interface te1/0/47 (A8:F9:4B:E8:05:EF) 0
18380 25.10.2016 08:09:32 switch92 0 SYS_IF_PEER_CHANGED Normal New peer for interface te1/0/47 is core-sw interface Te2/1/12 (58:F3:9C:96:0B:FB) 0
18379 25.10.2016 08:09:03 rt2 0 SYS_IF_PEER_CHANGED Normal New peer for interface Gi0/0/2.2365 is switch1 interface Gi4/5 (00:0D:65:04:25:1E) 0
18378 25.10.2016 08:09:03 switch1 0 SYS_IF_PEER_CHANGED Normal New peer for interface Gi4/5 is rt2 interface Gi0/0/2.2365 (88:43:E1:1D:D9:02) 0
18377 25.10.2016 08:02:07 rt2 0 SYS_IF_PEER_CHANGED Normal New peer for interface Gi0/0/2.2365 is switch3 interface Gi0/2 (88:F0:77:D1:20:02) 0
18376 25.10.2016 08:02:07 switch3 0 SYS_IF_PEER_CHANGED Normal New peer for interface Gi0/2 is rt2 interface Gi0/0/2.2365 (88:43:E1:1D:D9:02) 0
Maybe netxms is getting confused by the fact that this switch is a logical stack of 2 switches that are connected by te1/0/47, te1/0/48 on both switches.