Switching

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

Labels

Forum Posts

Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...

Resolved! pruning vlans

hi every body!could anyone help me understand the following"1) the command " switchport trunk allowed vlan pruning 3" requires vtp pruning be enabled or not? 2)when vtp is enabled, which version is used by default ?3) if we configure vtp version 2 on...

sarahr202 by Level 5
  • 609 Views
  • 1 replies
  • 0 Helpful votes

Hi people,Can any body give some clear instructions to follow IOS upgradation like how can we do.Still now I have not done any IOS upgradations, now I have strange situation to do IOS upgrade.Thanks in advance.Regards,Naidu.

Hi all,If I have Ether-channel on the Catalyst 6513 and that I want to enable jumbo frameon the ports that are belong to the Ether- channel port-channel. Do I need to enable jumbo frame on the physical ports itself or just the port-channel?According...

cisco24x7 by Level 6
  • 1466 Views
  • 1 replies
  • 0 Helpful votes

I have an old 3500 XL switch I want to install on my network temporarily for some users. The IOS support only ibm and ieee spanning tree. I configured the interfaces into a vlan and enable portfast on them and changed my spanning-tree priority for t...

I am have trouble with packets getting fragmented because of their size 1522 bytes. We have the "IP TCP MSS-ADJUST" command on the interface which is fine for TCP packets, but what can I do about UDP packets??

pcahill by Level 1
  • 1774 Views
  • 4 replies
  • 0 Helpful votes

i am looking to set up static route preferences in a L3 switching environment to 2 separate firewalls connected via 2 VLAN interfaces.the idea being that in the event of Firewall 1 being down the traffic will route via firewall 2the problem i am havi...

Hi guys, I have a cisco 877 router which keeps on giving the following message and then goes into rommon. I have tried updating the rom and ios images with no change in behaviour. Any suggestions to solve this problem would be appricated.Thanks.Will....

william by Level 1
  • 603 Views
  • 2 replies
  • 0 Helpful votes

Hi,I'd like to know about the meaning of reserved vlan's (range:1006 to 1023), I have the following configuration:SW1#1006 Online Diagnostic Vlan1 1007 Online Diagnostic Vlan2 1008 Online Diagnostic Vlan3 1009 Voice Interna...

Resolved! How to upgrade IOS

HiI wanted to know if someone could explain to me the steps needed to upgrade an ios.I've looked on the internet but i can't find any good informaiton.I have the TFTP software but other than that i don't know how to proceed.Any help would be greatly ...

I have 3560 with 12.2.37 se1 connnected viafiber to 3550 with 12.1.22.ea4I am enabling udld aggressive as soon as i enable this my fiber ports go into error disble before I enable this everything looks good on the interface no errors Anybody seen thi...

jfeo by Level 1
  • 2492 Views
  • 12 replies
  • 0 Helpful votes

This is probably not even possible but here goes. Is there anyway to identify a port on a switch into which nothing is plugged in (i.e. not even a patch cable)? I know a port will show not connected if no device is plugged in but is there anyway to...

Unanswered Topics