Other Network Architecture Subjects

Hi everyone, I am looking at placing Portfast and BPDU guard on all access ports in a clients network due to them complaining about machines failing to get DHCP addresses at bootup. Trouble is, we do not have control over what is connected to the swi...

On Cisco 6509 sup2, Version 12.1(13)E9, I want to configure command about storm-control broadcast and unicast level, but both two levels must be the same, why?

Have a problem with DFM 1.2 IDU 8. When I launch DFM Monitoring or Admin Console, both work O.K. However, when I exit either of them, The console I'm exiting goes completely grey and console window and IE session becomes unresponsive. I have to end t...

Is anyone aware of any documents on CCO of how to transition an enterprise network from regular legacy Spanning Tree Protocol to Rapid Spanning Tree Protocol? I found this document that describes RSTP, but it doesn't give any conversion advice:http:...

Setting a rspan for one of our customer. After reading through the document, what confused me is the reflector port. What's the purpose to have a reflector port? Is this for a local monitor device? The way I am looking at the mechinism of the rspan, ...

I'm looking for suggestions on my config for a 3700 router utilizing atm. For an upcoming disaster recovery test, we want to be able to swing the circuit from AT&T directly to the DR Hot Site for the Network test portion. Any advice on the best way t...

i have a NT1 PLUS B , it has U interface ,two line interface and a So/t interface. i connect the So/t interface to the 2600's isdn bri s/t interface ,but it didn't work.the isdn port on 2600 cann't get active at all.when i connect the 2600's ISDN por...

hai all, In cat 3550 everybody knows vlan 1 is management vlan . is there any way can we configure other than vlan 1 as a management vlan ?if your answer is yes , pls let me know how to configure .Thanx&regards,Rajesh

hi, we found a ubr10012 with a LED module above processors. there are a lot of key pad like "enter" "->" "<-" and so on . they seems no function. Dose anyone has similiar situation ?best regards.fred.

Hello, I have a 2509 and am trying to use it as a reverse telnet server for my other routers. I have everything connected and followed the Cisco Example but when I connect it just sits. It does say the connection it open and the remote router gets a ...

Hi,I have a big problem.I have a MGX 8850 switch with PXM45B.and The swich have AXSM and AXSME card.I have tried to configure as following. AXSME_oc3 (line 1) ---- AXSME_oc3 (line 2) : Local ATM PVC conncetion.but I can't find out the configuration f...

Hi,I've a customer environment with the following setup :(Branch)Internal LAN->FW->ADSL Router->ISP->Internet->ISP->ADSL Router->FW->Internal LAN(HQ)The branch need to setup a tunnel with the HQ with the help of the firewall (not a Cisco), then only ...

Hi,Is there any easy way to check all our switches if their subnet mask are correct or not. we have arround a 1000 switches and I don't want to telnet to each one.Thanks

I've just recently inherited an undocumented network (*.vfde.org) after a recent black out with the company. Talk about a two for one special.The clients have not been able to receive email from external sources for about a week after a recent NIC bu...