Switching

Our leaf switches are 3560. They have 2 uplinks to our core stack of 3750's.  There has been a lot of changes on the 3560 configuration.  The network guy has been trying to get a voice vlan setup and qos.  He's off on vacation and we need to image up...

We just purchased a Cisco Catalyst 2960S-48TD-L and to my suprise the power cable on it is a 15A-250v.  In laymans terms, the end that plugs into the wall is of the twist and lock nature.  This switch is going into a colo that was not spec'd out for ...

Hi,I have a small network with the following:1x Netgear 48 port Switch1x Cisco 2950 24 port SwitchThese two are connected through an uplink port on the Netgear switch.One have one Windows server running TFTP Server and other software. My devices (cus...

I am designing a new OSPF network that will combine several sites.  My original plan involved adding all the WAN routers into Area 0 and then either putting each (L3) user switch and each data centre into its own area or creating an Area for each sit...

Hello.Whenever I try and edit/delete a NAT entry via CPP (tried v2.1, v2.2 and v2.3 — even rolled back to SDM as a last resort), when I "delver" the command, it says it's delivering 14 commands, we loose connection to the internet (internal network r...

The baldeswitch:Cisco IOS Software, CBS31X0 Software (CBS31X0-UNIVERSAL-M), Version 12.2(40)EX3, RELEASE SOFTWARE (fc3)Is configured in VTP mode client, and on the vtp server I have defined vlan 12xx, but those vlans are not shown on the bladeswitch...

Hi,I had a stack of 3750 witht the latest IOS version.When I reboot the switch, I have all CDP from neighbor.After few hours, the table is empty and no way to retreive it.clear cdp, no cdp, cdp,...Nothing works.The only suitable way is to reboot comp...

Hi,We had a Cisco 3750 with a interface that encounter output drop .We change the cable, we change the interface.The traffic have the same bandwidth pattern since a long time but now we have output drop.We try to increase the output hold queue but wi...

Hi All,I have the following topology:DEVICE X <---- trunk vlan 10,20,30 ---->  in.p C4500 out.p <---- trunk vlan 10,20,30,40,50 ----> DEVICE YI need to change the cos value for specific vlan (vlan 20) on Catalyst 4500. But only for vlan 20.Received c...

Hi...I have a questiionI have a 3845 router . Is there any way to differenciate between1. "interface down" alerts generated due to Link terminating on it fails And2. "interface down" alert generated due to "hardware" issue.I am not able to simulate t...

Hey,Our network is currently using the 192.168.1.0/24 IP address range.  I want to migrate to a network that will support more than 254 hosts.  I'm thinking about using 10.11.0.0/16.Although both networks will be on the same wire, they won't be able ...