Switching

Hi,I am getting confuse about cisco IOS related issues.Can u help me regarding the above means ,How can i troubleshoot if IS crashes or How can i get IOS compatibility features or supporting featuresand The prerequisits before going to  upgrade IOS ,...

Is it possible to setup DYDNS on a Cisco 861 router? If yes, what IOS version do I need? thanks for your time!

three router 1--2--3, all interfaces enable rsvp by using command "ip rsvp bandwidth ".  loopback 0 of r1 has ip address 1.1.1.1 and loopback 0 of r3 has ip address 3.3.3.3.  using command "ip rsvp sender-host 1.1.1.1 3.3.3.3 tcp 1 1 500" on r3  ; us...

Hi,We have a few IP SLA monitors running on switches. 2 of the fields are Packet Late arrival and Tail drop.The WhatsUp Netflow collector does not monitor these two fields at the moment.From the switch, how\what commnds can I use to monitor the 2 fie...

hi,cisco 6506-e series switch having problem when upgrading to 8.7(2) version.  Soon after upgrade we get one of line card showing faulty. But it's confirmed  that chassis and sup32 not having any problem by replacing it.When revert to old CatOS 8.4 ...

Hi...    Could anyone clarify my doubt. My doubt is while we configuring serial interface for wan connection we use encapsulation method .What is the use of it?.why we don't use encapsulation command in ethernet interface?Thankyou

Hi, I have to create a wireless network for a railway along a gallery 2.5km long. I am thinking about a daisy chain architecture compose by industrial switch positioned along the gallery and linked together in a daiysy chain topology by uplink fiber ...

Hi!I´ve just installed 10x WS-C2960-48TC-L and 01x WS-C2960-24TC-L using GLC-SX-MM SFP modules, and in all (absolutely all of them) the SFP doesn´t fit really well... it´s kind of loose in the SFP bay, it looks like that either the SFP are manufactur...

hello,I have 3 348G switches connected in eiasy chain fashion on gig0/0 and gig0/1 ports. My problem is that when I do "show cdp neighbor" command, it show switch seeing itself on some of fastethernet ports.  fastethernet ports are all connected PCs....

We had an incident where our four core 6513s pegged their CPUs at the same time causing havoc with routing. It lasted about half an hour. I was not able to get the results of a "sh proc cpu" at the time of the incident.Supposedly nothing was changed,...

Ok,  Im new here and somewhat new to Cisco Routers.  I have used them before, but not for an actual live enviornment.  I happen to have the fortune of my workplace giving me a Cisco 1721 for my personal use.  I have a WIC-1ENET card for internet acce...