Switching

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

Labels

Forum Posts

Hi all!I have some SFPs from RAD, MIRIC-E3. I try to config in a cisco switch but i get this message:05:55:16: %GBIC_SECURITY_CRYPT-4-VN_DATA_CRC_ERROR: GBIC in port Gi0/23 has badcrc05:55:16: %PM-4-ERR_DISABLE: gbic-invalid error detected on Gi0/23,...

david.sua by Level 1
  • 19402 Views
  • 4 replies
  • 0 Helpful votes

hello, i have a NAT failover configured on my 1942 router. (The config file is attached to this post). Main link is ISP1 and secondary link is ISP2. The secondary link is connected to one of the EHWIC switchports at the back of the 1942 router. The c...

buzzhani1 by Level 1
  • 62930 Views
  • 9 replies
  • 0 Helpful votes

Hey there guys.Im kinda new using packet tracer and i've been having classes for a degree on networking.I've got to do a project in packet tracer but i'm having problems pinging between VLANS.I have vlan 2 3 and 4 I've configured the the etherchannel...

NABS93 by Level 1
  • 1215 Views
  • 2 replies
  • 0 Helpful votes

hi all,how do you reset the above switch as theres no physical reset button, so i imagine its all done via command lineis it this write erase reload System configuration has been modified. Save? [yes/no]: n Proceed with reload? [confirm]y delete f...

Trying to understand port channel and Channel Groups.  Does it matter that the Port Channel and Channel Group on the main switch is one number ie. 208 and the Port Channel and Channel Group on the uplinked switch are different ie. 8.  I thought that ...

glinskim by Level 1
  • 833 Views
  • 5 replies
  • 0 Helpful votes

I have a new 3850 L3 switch. It had a self-signed certificate installed when I first booted the switch. The certificate appears to be either 512 or 1024 in length. I would like to create a key that is 2048 in length. I can issue the crypto key genera...

Hello,We are looking at using a PWR-C1-715WDC power supply, which takes a -48VDC input, for the CS9300-24T-A.  Our source will be a +48VDC supply with its return tied to a system ground.  Are the DC inputs to the PWR-C1-715WDC isolated?  Do you see a...

ES99 by Level 1
  • 596 Views
  • 3 replies
  • 0 Helpful votes

I had a situation where I was rushing to finish a switch configuration and didn't have time to add the tacacs commands.  I accidently left the Line Con 0 config blank and it meant we couldn't connect to the switch without having someone actually prov...