Discuss Catalyst brand switches with peers and experts.
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

Hello and sorry for my English, Lately I had problems with an application in RDS. We tried to find explanations. Among various concerns, we found that when we ping permanently on a device, on 2000 packets, we have 2 or 3 packets of lost.The response ...

*Jul 17 10:31:35.615: %FABRIC-5-FABRIC_MODULE_BACKUP: The Switch Fabric Module in slot 4 became standby*Jul 17 10:31:42.439: %OIR-6-PWRFAILURE: Module 5 is being disabled due to power convertor failure. PMB registers are dumped as follows, R0= 0x0, R...

Hi, I have attached 3 Ubiquiti Nano Switches to that Cisco SG-250-10P. Non of them is getting power from Cisco. By default POE is enabled I guess resp. I cannot find and esplicit setting in Switch GUI. Any idea why the Nano Switches don't get power? ...

testag by Beginner
  • 7 replies
  • 0 Helpful votes

Resolved! err-disable

Hello,I have a cisco 2960 plus series switch and an SFP module. When I plug SFP in port the port goes in err-disable. After a shut, no shut the port's LED blink for once and it goes down again and the following message appears on the terminal.  %GBIC...

Resolved! Port channel Setup

Hi All, Is there a method to add an additional ten gig link to an in-production 10 gig link to form a port channel. The catch here is that the 10 gig in-production link is a routed port having a L3 ip and the other end too is routed port and both the...

Hey guys,  I have this weird problem: I have two VLANs coming from the same port of the same device. One VLAN periodically becomes unreachable, no ping. If i do shut/no shut on the switch, that fixes the problem. After  a few days, it pops up again. ...

I am trying to replace a 3750 Switch with a 3850 Switch.  When I attempt to insert the 3850 into production, none of the VLAN interfaces, port-channels or switchports will come up. ???They are not shutdown, and I feel like I've missed a global config...

rvenable by Beginner
  • 9 replies
  • 0 Helpful votes

I have read so much stuff in recent days about the priority queue trying to understand something simple, but I just can't find the answer... Either I can't find it, I didn't see it, or I don't understand it. I figured some expert here can just answer...

brettp by Beginner
  • 0 replies
  • 0 Helpful votes

Hi All,I have 4 C9500-48Y4C switches in two different locations.  I am using the stackwise cable to stack two switches in each location but can I use Fiber connections to join the two locations to make one logical core using the four switches.   Than...

Hi good day, I have a problem with SW WS-C4503-E, send these messages in the logs;% C4K_EBM-4-HOSTFLAPPING: Host 55: 32: D1: 00: K8: X8 in vlan 100 is moving from port Gi1 / 1 to port Po1It is a constant message, I verify it in the documentation and ...

Jhon1989 by Beginner
  • 4 replies
  • 0 Helpful votes