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This is my topology:  PCMitarbeiter and PC1 are in the same VLAN (Mitarbeiter)PCMitarbeiter ip is: 143.54.234.1 and PC1 ip is 143.54.234.2 configs: MLSA: ! version 16.3.2 no service timestamps log datetime msec no service timestamps debug datetime ms...

Hi,After I put an access-list on one of my routers the routing table fails to update, this is the running-config of that router:Building configuration... Current configuration : 1059 bytes!version 12.2no service timestamps log datetime msecno service...

Good day everybody, yesterday I had an outage on a WS-C4510R+E.syslog showed that the fantray stoped working: Fan tray has failedC4K_IOSMODPORTMANFANTRAYBADToo few working fans in fan tray, the chassis will overheat. If not resolved, in 0 minutes 30 ...

snoc by Level 1
  • 1513 Views
  • 5 replies
  • 0 Helpful votes

We had an issue the other day where a port channel was blocked due to a "SPANTREE-2-RECV_PVID_ERR". We have a port channel (channel-group 42) configured on this switch with 8 ports. This port channel is configured as a trunk and those 8 ports are tie...

Hi, I seem to be having an issue when adding VLANs to our core 4500-x stack and attached 3850 stack. Whenever I add I see these messages on the 4500's.  In this case we added VLAN112 to the 4500 and then added it to the 3850 %SPANTREE-2-RECV_PVID_ERR...

jbrit1969 by Level 1
  • 3543 Views
  • 9 replies
  • 0 Helpful votes

Got this issue spanning tree issues recently that blocks the main link between my Cisco 3750 (stacked) and a HP4204vl. Things were working okay since it was installed and somehow something must have change (unaware) that cause this. My knowledge of s...

utawakevou by Level 4
  • 40621 Views
  • 10 replies
  • 0 Helpful votes