Other Network Architecture Subjects

I AM RUNNING ABOUT 4800 FEET FROM MY 3508 TO A 3548 USING 1000BASE LX/LH SINGLE MODE FIBER. I NEED TO KNOW WHAT THE MAX LOSS IN Db WOULD BE, AS I AM GETTING A LINK LIGHT, ONLY TO LOSE IT IF THE FIBER JUMPER IS MOVED. I HAVE CHANGED THE JUMPER WITH ...

ARE THERE ANY COMMANDS WHICH WILL GIVE THE CHASSIS SERIAL NUMBER AS OUTPUT, FOR ROUTERS? ALSO, IF ANYONE KNOWS A COMMAND FOR SWITCHES THAT WOULD BE HELPFUL.

Please tell me how to solve the problem:It is necessary to connect IP-LANscentral and regional offices over x25 network.In region, router connected to x25 network trought x25 protocol.In Center, in additional, need connect to Internet.router 2650 con...

Could anyone give me advice/recomendation on routers connected via 2meg link, currently have 2501's are they capable of using all that 2meg given an average packet size of 200b, static routes used. Or should they be upgraded?

Has anybody noticed a Cat4000 changing it's config?Two of my Cat4000s running CatOS 7.2(1) are changing config lines concerning set spantree portcost and set spantree portvlancost.Example:I've noticed set spantree portcost 3/7 3100set spantree po...

Hi ,I have a cisco3640 with four bri and 6 digital modems . All dialin users will authorize at the MS IAS Server. The callback to a async modem works fine , but the callback to ISDN failed.here the debug:00:54:43: TTY130: Line reset by "Virtual Exec"...

Dear all,I want to log on logging server who change the coniguration and who telnet in my catalyst.I set the logging server but I couldn't receive the output what I want..What facility sould I change??The below message is IOS base out on logging serv...

we have for 4 3Com U.S. Robotics modems attached to our async lines, these are intended for our staff to dial in so that they could have accessto the internet. but there's a problem with our USR modems, i guess it was not properly initialized. it wou...

Hi folks,I am trying to get a 1605r up and running but, my hosts can't seem to get on the internet. I am pretty sure the problem is that my router is not configured to NAT properly.I can ping my DNS servers from my router but, not from my hosts. See ...

I am trying to configure dial backup and as soon as I change the speed to higher then 19200 my modems will not dialer or not connect. I have tried changing the modem configuration and line speed in the router with no success.I am using two US Roboti...

HiI have a Cat 3508GXL, 2 units of 3548 switches behind PIX. PIX has been configured to allow these 3 devices to connect to CW2K server.In Campus Mgr -> Topology Service, the 2 units of 3548 are listed under LAYER 2 view. Why is 3508GXL is listed u...

Router boots fine but the output is garbled. Using HyperTerminal. I've tried: different PC's, different rollover's, different adapter's. When you reboot it seems to being going through the normal boot process because the pauses in the output are ...

Cat 4006 with SupIII, RMON doesn't work. Found in CCO that we need RMON Agent License to get RMON to work on Cat4006. Called Cisco Pre-Sales and they confirmed this, and also told that the license is an activation key that will be mailed to us.Questi...

Is there a way to track/ trace/ audit what specific switches that a frame traverses from source to destination in a flat network??..this would be functionality similar to traceroute for IP...thx

I am having trouble connecting to the hub ports on my Cisco 2505, i have tried with straight through cables, twisted, nothing seems to work, below is my curent config let me know if im doing something wrongCurrent configuration:!version 11.0service u...