Switching

Just got 2 x 3750 and I tried to stack them, that didn't work because of an IOS mismatch. I upgraded the IOS to c3750e-universalk9-mz.122-40.SE and erased the old version, now the switch does not boot up normally. I get an unusual prompt. These ar...

Not sure if anyone out there has a C-Class HP Blade server enclosure with a 10Gig HP BL-C Switch connected to a core 6500 using 802.1q trunk and EtherChannel:Anyway, having issue with conenctivity:I set up the dot1q trunks and added members on the BL...

Hi.We're running a 3745 router on the edge and a 6506 on the core. We have 2 connections going from the switch to the router, and are not utilizing any dymamic routing. Is there a way for us to priotitize the traffic between the 2 devices for a speci...

How can I check the memory usage in Cat6500. Is it show memory. What is the difference between process memory and I/O memory.

Trying to determine the reason for slow server backups on servers connected to a WS-X4548-GB-RJ45 module which has 6 groups of eight ports which share 1Gb bandwidth with associated ASICs & buffers. Don't see excessive pauses or dropped packets howeve...

I've been setting up an ERSPAN using 6500s.I hope I have done my homework, but it seems not to work.here are the source:<snip>interface GigabitEthernet4/3 description source switchport switchport access vlan 70 switchport mode access no ip address lo...

I'm in the middle of installing a new Shoretel phone system and I'm trying to power the phones with 3560 switches. In several of my locations, when I plug in a Poe device, Shoretel phone or linksys switch, I receive no power from the switch. I have...

Hello All:I'll try to be succinct.A router's fastethernet interface and two firewalls' outside interfaces all sit on the same subnet - R1, FW1 and FW2. Interconnecting them are 2 L2 switches with a trunk between them - SW1 and SW2. So, R1 connects to...

I am designing a network for a refinery and the vendor I am working with is suggesting the EMI image is required for routing within the LAN "no connections to the internet" I do not see a need for the Enhanced Image and feel the Standard image should...

I am looking at moving from a L2 switched network to a L3 switched network at my access layer. In this design my access layer can consist of 3560, 3750, or 4500 switches with layer 3 links to my distribution or my core.My issue is that in the L2 acc...

Are there any pitfalls of having this command on interfaces that will never be used for trunks? i.e. any unneeded traffic etc.Thanks in advance./rls

I'm trying to prevent people from creating vlans on our switches. The problem is I can restrict them to "switchport access vlan" but if they use a vlan that isn't on the switch it creates it automagically. Short of creating all my vlans and putting t...

Hi, I want to know how do we choose SFP for different switches I have attached the SFP.DOC as a reference for 3560 switch in perticular general rule of thumb to choose SFP at both the ends and cable to join SFF at both the ends of 2 differnt Switch.

Hi All,I am installing Cisco 3560 Switch. I have enabled HTTP access to the switch using "ip http server". I am able to open the switch in GUI Mode also using the Username and PasswordIt is opening in Privilege Level 15. Thus i am able to change / co...

Hi all, can anyone tell me what these commands doaaa authorization exec default group tacacs+ local aaa authorization commands 15 default group tacacs+ local aaa accounting commands 15 default start-stop group tacacs+ ?