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In c6509 vsss mode, duplication occurs in some Vlan of Unit 1 after reloading of Unit 2I removed the port where the duplication occurred, but the symptoms are the same. I'd like to know why the duplications are coming up on Unit 1  

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rjh0908 by Level 1
  • 667 Views
  • 3 replies
  • 2 Helpful votes

السلام عليكم  اني طالب ادرس حاليا ccnax 200-120 عندي سويج سيسكو اتدرب عليه c3550 switch: راح السوفت وير و طلع عندي فقط  switch: switch: ? ? -- Present list of available commands boot -- Load and boot an executable image cat -- Concatenate (type) file...

iq.asal01 by Level 1
  • 372 Views
  • 2 replies
  • 0 Helpful votes

Hi,In our imaging lab we have 3 switches. Switch 1 is the main switch with the gateway for the imaging vlan.Switch 2 is in another room over a 10gig fiber link. Its speeds are fine.Switch 3 is in another room with 4 gigabit ports in a port-channel. W...

KGrev by Level 4
  • 1782 Views
  • 8 replies
  • 0 Helpful votes

Hi,I have a 3750x switch, that will not power up new devices (or devices that have gone down, been unplugged, etc) until it is rebooted. Once a devices is plugged in and the switch has been rebooted everything works fine. I assume it's some sort of n...

Moopers by Level 1
  • 357 Views
  • 2 replies
  • 0 Helpful votes

Hello, please, could someone help me to find information about if C9300-NM-8X card supports sfp or sfp+ only. So is it possible to use for 1gigabitethernet port.  The only indirect prove that it's possible I found in the document http://www.cisco.com...

vstepanov by Level 1
  • 41923 Views
  • 8 replies
  • 15 Helpful votes

Hello all,If we have the option to use both the reload and reload fast option, would there ever be a reason to use the plain reload command instead of the new reload fast command? Basically, I would think you would always want to use the reload fast ...

vv0bbLeS by Level 1
  • 3857 Views
  • 19 replies
  • 0 Helpful votes

Hi I'm Kim student from South Korea. An error occurs during initialization and booting of the switch.The switch is ws-c2960x-48ts-l, and I think all the ios are missing during initialization.I tried to download and install the image file on usb, but ...

pongx2kim by Level 1
  • 2821 Views
  • 5 replies
  • 0 Helpful votes

Dear expert,suggest any free or open source network traffic and utilization software. something another form PRTG.

rk6171485 by Level 1
  • 509 Views
  • 2 replies
  • 1 Helpful votes

Hello there,was there any change to how peer-link port roles are marked on VPC pairs between the 7.X.X versions and 9.X.X+ ? I inherited two pairs of N9Ks, one is running the older code, and marks the peer link as Root, whereas the pair running 9.X.X...

kella3 by Level 1
  • 458 Views
  • 2 replies
  • 1 Helpful votes

Hello,I have a strange issue with PoE. Everything was working for a couple of days but all of a sudden all PoE devices were disconnected. All devices without PD are working. I checked logs and it just showed gixx is down for all the ports. Devices co...

rousar by Level 1
  • 819 Views
  • 7 replies
  • 0 Helpful votes

I have been trying to reset a password on a Cisco SG350-52P without doing a factory reset, I found this link Administrator Password Recovery for 300, 350, 500 and 550 Series Switches - Cisco But it did not work on the Cisco SG350-52P it wouldn't even...

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