Switching

Please refer to the attached document I was just issuing some spanning-tree show commands on the root switch(Core1) when I noticed that the root cost for VLAN 17 was 20, not 0. All the other VLAN costs were and are supposed to be 0. when I entered sh...

Anyone can help me to downlaod the EDI tool converter from CATOS to IOS I know it is not so powerful but I need it for my 10 pages catos config The link of Cisco seems doesnt contain any file  https://upload.cisco.com/cgi-bin/swc/fileexg/main.cgi?CON...

Hello,I have a switch port with 3 devices attached on fa 0/1, but I need to add a 4th, so I changed switchport port-security maximum 3 to 4 and I can't seems to get the 4th device to come up, I' tried shutting the port down and then bringing up again...

Hi,is this network topology supported?If every link is a 10G link and N7K-1 is root bridge for every VLAN, which interface will be blocked by STP?Stefano

I just purchased a dozen 881W series routers for several of our offices, but am now looking for a good gigabit switch to complement the router. I will only have no more than 4 hosts on the switch. Are there any that would go well with the router? Any...

Hi all,Sup7-E need license key to turn on IP services feature.  For a Cat450x-R system with one Sup7-E with IP services license, later on redundant Sup7-E will be added to existing system.  Based on 1 feature license per box,     1) Will the license ...

   Hi,just a question, on my new 3750x there is the universalk9 ios image with lanbase license, and i have to add to an old stack 3750 with ipserveces ios. I know that i can't add the new switch to old stack without all switches have the same ios, bu...

Does anyone know if Cisco has a tool to find the recommend UPS size for a certain amount of switches? I have 6 3750's that I want to put on a APC 2200 but wanted to make sure it was suited for that amount of switches. This would be a temporary solu...

Hello,I have a 1811 and 1 of my ports does not want to pass traffic anymore.. Anybody have this happen before?Router#ping 192.168.1.104 Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 192.168.1.104, timeout is 2 seconds:!!!!!Success r...

Hello,I would appreciate your help with this problem.I am working with 3 Cisco 2960 L2 switches and one Cisco 3560 L3 switch. They each have an IP address and the are configured pretty much to default settings and all on the default VLAN (VLAN1). Wha...

Hi:I'm a bit puzzled by something:I plugged my laptop into a 3750 switchport and it got an address via DHCP.My question is, why?The switchport is g3/0/29.The configuration of that port is blank. It just reads:interface GigabitEthernet3/0/29.A "show v...

Folks:I have ports 17-20 on each non-Cisco access switch configured to be part of a LACP LAG. I have a vPC peer Link configured. vPC is up.Do I have to configure ports 13 and 14 on each of the N5K switches to be part of a port-channel? And then also ...

Dear Expert,There is one network in HK and it is connected to ISP-A. The IP address block 192.168.80.0/21 was obtained. Five IP segments (VLANs) are allocated in HK with ospf 50:192.168.80.0/24 (VLAN 80)192.168.81.0/24 (VLAN 81)192.168.82.0/24 (VLAN ...