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My cisco C4500-x switch is not supporting GLC-T SFP transciever. the iOS version of the switch is (cat4500e -UNIVERSALK9-M), Version 03.08.01.E. I check the compatablity of the SFP with the switch and found out the iOS version is too old to support t...

Chala by Level 1
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  • 43 replies
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The IPs of the machines behind the core network are assigned by DHCP via the DHCP server, not the pt-empty router. There are 2 VLANs that do not communicate with each other (still behind the core network): VLAN 10 & VLAN 20. The printers serve only t...

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Dylan-a by Level 1
  • 319 Views
  • 3 replies
  • 0 Helpful votes

Hi,I have one switch in each DMZ zone. Each DMZ VLAN has the default gateway on the firewall.I am wondering what is considered the best practice:Connecting DMZ switches directly to the firewallOrConnecting DMZ switches via the core switch (L2 only) t...

iores by Level 1
  • 506 Views
  • 12 replies
  • 0 Helpful votes

Hi there : i have a Cisco catalyst 2960-x sires 24 ports switch .. this is a brand new item purchased the last week from local vendor .  whenever i try to Putty this error message is shown as attached in the picture :  would you please tell me what t...

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Hello.My WS-C2960CG-8TC-L is running on 12.2(55r)EX11 and I would like to perform a firmware upgrade. I'm using the command "archive download-sw /reload" , but the switch says "Error: The image in the archive which would be used to upgrade Error: sys...

mimu88 by Level 1
  • 546 Views
  • 12 replies
  • 0 Helpful votes

when i get a blank output of the show int trunk, this means that the link is down. But how should i fix that besides reentering all the code again? Is there an easy way? Also, how can i see, when using vlans, which port has which vlan connected? show...

Enki Doe by Level 1
  • 8294 Views
  • 6 replies
  • 0 Helpful votes

Hi,someone can help me?I have Cisco 1841 with WIC1T board, SerialI have Cisco 2921 with WIC2T board, Smart SerialSomeone know which is code of Cross Cable to connect together?And is it possible to connect second port of WIC2T to other router?Thank yo...

A few days ago, I was contacted by our security department reporting several IP cameras were down.  Upon inspection, I discovered 7 ports in an err_disable state.  Looking at the logs, I found the following entries:Nov 26 13:47:11 PST: %PM-4-ERR_DISA...

  Hello all, Refer to that table 1: PCP value 0 = Background and PCP value 1 = Best Effort As concerned Wireless QOS, it can be uniquely defined on each wireless LAN, using the four trafficcategories listed bellow : Regarding this table above, 802....

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M02@rt37 by VIP
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  • 5 replies
  • 0 Helpful votes
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