Other Network Architecture Subjects

I want to set up more then two monitor sessions on a 6509 sup720 (IOS = 12.2(18)SXD3) and am running into limitations that are not specified in the documentation.Here is what I have and the error message after I try to add a third session:ENGLAB-6513...

I have a WS-X4424-GB-RJ4 in a Catalyst 4006 w/ supervisor 2 that reports a high number of receive discards, most frequently occurring overnight during the nightly backups. This is the only module/switch in my entire network that reports discards. T...

what does no eigrp log-neighbor-changes mean ?

I cannot seem to get multiple Vlans to run on my 2950 switches.We need to be able to maintain our management Vlan1 and also allow internet traffic on another vlan and workgroup traffic on a 3rd Vlan.Everytime I turn on one Vlan it shuts down the alre...

When you inplement the "set errordetection portcounter enable" command what exactly does this do , does it send a trap or does it just put a message in the log or something like that . What are the thresholds when this gets triggered ?

I am settting up DHCP snooping for the first time on an 3750. My DHCP server resides on another switch. The 3750 is connected through a Gig SFP fiber to a 3550 with DHCP relay. Is the following config correct? The client will not get a dhcp with the ...

Does it mean if you have any static routes, the routing protocol will also advertise these ?

I have several switches connected to a backbone switch, I have created a new vlan on the server switch and it has propagated to the switches plugged in to the backbone, but anything not directly plugged into the backbone cannot see the vlan, do I nee...

Hi,I've read all I can on the cisco.com site and not found a good explanation of dropped and invalid IGMP packets.This output is displayed from a cat os 'show igmp statistics', dropped packets and also invalid packets.What are these and what can caus...

Hi All,just some general questions about VLANs and DHCP etc. When you create a number of different vlans, across different switches, does each vlan require a dhcp server, for those nodes to obtain their IPs.? Or, is this achieved another way.? Also, ...

On a les circuit do you need to have routers on both ends or can you put a switch at each end and use it as the same lan effectively.thanksCarl

Hi all,I have some dudes about a CatOS upgrade.I have a Catalyst 6513 runnning CatOS 5.5.1, I think on upgrade to CatOS 7.6.13.My dude is... is the config syntax compatible at all? If the answer is no, what changes should I need to do? where I can vi...

Guys, RSPAN seems to be a pretty common topic here and I was wondering if someone can help me. I have poured over the documents and forums, but I cannot see why my setup won’t work.Basic overview time, 2 Cat 4507Rs (swc3b and swc230) connected via is...

My question might be silly, but i need to know, what is the purpose of having IP address on Serial Port, instead we can use the IP address of Ethernet Port by entering "ip unnumbered ethernet 0" on serial port isn't?