Switching

Hi all, I'm fairly new to all this so please go easy! I have a 2940 switch which had the wrong VLAN on it (the equipment we had running through it hadn't been used for a while & no one noticed it wasn't working until now). I found the switch port was...

Hi,After an upgarde of 2960/3560/3750 to IOS 12.2(55)SE1 all interfaces with the "no cdp enable", receive multiple autogenerate cdp commands. Same behaviour after a reboot.Before the upgrade or the reboot :interface FastEthernet0/6 switchport access ...

I am seeing that there are many options for spanning tree type, is that correct?RSTP Link and Edge TypesLink-Type point-to-point: Links between switchesEdge-Type point-to-point: Link between switch/end userLink-Type Shared: Link between switch and a ...

Hello All,I have a strange problem.Fase 1: I begin with a test lab, 2x core (C3750) + 2x access (C3560).The core switches are routing, and the vlan can communicate to each other.Fase 2: I put the switches in the corporate network and all divices are ...

Dear Tech Gurus,I need a small clarity regarding Cisco Catalyst 4500 Supervisor Engine 6-E.It has Dual 10 Gigabit Ethernet uplinks (X2 optics). -----------   Can I connect this two uplinks to a distribution layer switch.Say yes or no.With ThanksChait...

The network-topology looks the following chart.When port is blocking ports at PVST mode, LED is orange blinking.what color of LED is at Rapid-pvst mode?Please look at the attached files.**********************************Catalyst2960S Gi1/0/20(Blockin...

Hi,I need to replace line card in 4006 Switch, Please give ur suggestion.NOTE: it is a production environment.Regards,

If I have both options available to me...what is the "best practice" for booting?  From flash or compact flash?I've always booted from flash but inherited some 3725s that were set to slot0:.

Hi experts,Does anyone have implementations examples of a "mirror" network in large datacenters designs for monitoring purpouses using TAPs (ex. netoptics or gigamon)? I'm evaluating some monitoring solutions but it's mandatory to configure mirroring...

So I currently have a basic 16 port switch.....I need to upgrade.  And I am looking at the catalyst 2960 48 port.....So my question is this WAY more than I need.My current config is this...internet........dslmodem.......cisco firewall.........basic 1...

We have a Cisco 800 router facing the Internet and the public IP is given dynamically from the ISP, so it's subject to change.We need to have acl's only to allow specific sites to access the 800 from the outside, but the problem we cannot lock down t...

Hello,I have a metro ethernet connection with 3 switches (Switches A, C, and E) at 3 different locations each with a single interface into the metro-e cloud and each interface configured as an 802.1q trunk.  Switch A is in VTP domain xxx-xxx and Swit...

Hello,anyone has ever tested this ? Does it work ?We are running VSS on 12.2(33)SXI1, but don't seem to get ERSPAN running. We have configured it on other standalone C6500...regards,Geert