Other Network Architecture Subjects

Are there any commands that I could issue to the switch that would give me back the port info if I know either the IP address of a workstation or it's MAC address? Meaning I want to know where a particular workstation is plugged in without tracing ca...

Hi everyone,Well I've been staring at the specification sheet to compare the 6509 and the 4510R. I'm now starting to wonder if the 6509 is worth purchasing over the 4510R. So, I'm here to ask for some advice from the community.1) Would someone notice...

What is the difference between "clear channel" and "multi-channel" in the description of E3 ports/modules?When or under what situation should "clear channel" and "multi-channel" E3 cards be used?

We are not getting any logs on our Cat-3524's even though the trap sev is set to 6. Has anybody had a similar problem? Where do I begin with troubleshooting?

Yesterday, I tried to change , the situation of my 7600router when it gaves me this error. It was like all the time translating severals IP into only one MAC add (%IP-I-ARPOVRWRITE, arp info overwritten for 81.232.xx.xx by 00:x0:5e:xx:xx:xx).The rout...

Hi, I have a Cisco Catalyst 3550-PWR with ports that is configured as ACCESS port.Is possible to reduce the amout of STP traffic in this port?Regards.Rodrigo

I wrote an in-house netflow V5 collector. It seems to work but I am getting some weird sequence numbers.The sequence number would look like this:(The numbers on the left are the expected sequence number the numbers on the right are the sequence numb...

I have 2 servers balanced..I have a cookie-insert set for 15 minutes...when I access the virtual server and press refresh, it bounces between the two real servers after 10-20 seconds...Should I use the cookie-passive?

I have a question on why there are discrepencies between my LS1010 ATM interface and my 7206 router ATM interface counters? The output of my router is 3Mbps and the input of my LS1010 is 1Mbps? This just an example but I see the same thing throughout...

Hi. We currently had four main building with a Cisco 3550 on the ground floor of each linked in a ring by fibre at 1gb.Links to floors to each 3500 at 100MBPSWe have maybe only or or two links to a floor - so often switches are diasy chained at the f...

Does anyone have experience of developing test environments for simulating a Worm-based Denial of Service scenario on a routing infrastructure? We are currently looking to simulate an environment where a router is experiencing CPU overload and memory...

Save yourself from headaches by properly grounding your racks!!I was constantly replacing switches due to lightning and general power problems related to our buildings.Some of them were just fried while others just started acting strange.I had our ma...

I am setting up a remote site to access the network at our main office using two PIX501's.I have established a tunnel between the two sites which allows me to ping from one network to the other and back again. However I cannot log on to the network ...

My question is regarding broadcasts on a VLAN interface. I have a high proportion of broadcasts on my MSFC2 VLAN interface, see below.My theory is because MLS is enabled, unicasts on a whole are being L3 switched by the switching engine, not hitting...

Hi,I'm having failures on my Medium buffers. I would tune the buffers, but when you try to change the medium buffers you can't, there's no option.You can change small & middle, etc.. but not Medium!Dave