Switching

Hi, I got this error frequently in my Cisco Catalyst 3750 (occurred in several ports) and did not understand what to do.Description: Interface GigabitEthernet1/0/19, changed state to upExplanation: The interface hardware went either up or down. Rec...

If you have RSTP enabled throughout the network, is there a need for loop gaurd or UDLD? can some explain to me the benefits/disadvantages of having UDLD and loop gaurd in a RSTP enviroment? maybe even a brief explination of how loop gaurd and UDLD ...

Hello,I have deployed 2 catalyst 6500 with 2x sup32 for each cat, I try to connect both switch?s by two 10G interfaces on each chassis (one in the standby and one in the active) but with no look, the only 10G interfaces that came up was the 10G int...

While finding a mac port, I got this result, what does mean by port CPU?Switch#show mac-address-table address 000a.8afa.cf80 Mac Address Table------------------------------------------Vlan Mac Address Type Ports---- -------...

Is it possible to configure one fast ethernet port with multiple vlans. likeswitchport access vlan 1,2 and soIf it's not like that how do you guys do this in real world?

1. Built-in security2. support for wireless LAN standard 802.11/a/b/g3. Up to two 10/100 Mbps builtin router port4. Up to 50 VPN tunnels5. Eight 10/100 Mbps built-in switch port with optional Power over Ethernet

Hi,it would be kind of you, if any on can say me how many IP blocks is been supported by 4507 L3 switch. note all the ips are public.eg: i have 20.1.2.x to 20.1.15.xand 20.3.x.x and 202.x.x.x series of IP's which i would like to integrate in vlan.is ...

Hi all, can anyone give me a quick explanation of what 802.1x is, how it works, and what i need, in the easiest way possible?thanksCarl

Version 12.2(17r)S1, I have the IP address and would like to track to the ethernet port they are connected to, what commands can I use. I tried the sh ip arp but it only shows the vlan not the phisical port.

Hi,I need to free some fiber used by my network and give them to the SAN...problem I dont have enough.Option 1 : Install fiber 200K-250K for a single cable...need two.Option 2 : multiplexingWhat equipment to do option 2. I know the SAN and the netwro...

This is from a beginner on configuring a CSS for SSL termination. Having scanned through the SSL Config guide, not sure whether a separate SSL IO module is required. Can basic SSL termination(without acceleration) be configured on the base SCM modul...

I recently tried to upgrade a Sup32 (6500 chassis) from CatOS to IOS. I'm a Cisco rookie (still green, fresh out of college), and I ran into some issues. The IOS image that I copied to the bootdisk is 50MEGS. The image also ended up being corrupt (I'...

How can I setup a Cisco 3750 Fibre Switch to accept mulitple connections to a SAN?