Other Network Architecture Subjects

After upgrading my IOS and reloding I get the error message "Compressed image checksum is incorrect."Then "System received a software forced crash." and"Machine check exception." I reloaded the original image using xmodem (very painfull) and get the ...

I'm the network admin at a small college. At a recent Cisco event I heard about Layer 3 switches and became curious about them. I know that they do routing based on IP address as opposed to switching based on MAC address on Layer 2 switches. Right...

OK - I am stumped - I have very little experience with cable modems, and need some help. I have just joined an organization that uses a T1 to connect to a network in another city (home office). We use a MetaFrame server to share certain software - t...

Hi,I like to create one vlan and allow only tcp port 80. I am running layer three switches. we have multiple vlans running within the network. my question is that do I just apply an access list on layer three vlan interface inbound or both in and out...

hihowto enable RSTP Spanning Tree on Catalyst WS-C3550-12T ?3550(config)#spanning-tree mode ? mst Multiple spanning tree mode pvst Per-Vlan spanning tree mode3550(config)#does my Catalyst support Rapid Spanning Tree RSTP ?kind regardspk

Gooday, I am designing a network architecture in which redundancy and high availability are a crutial issues. I have chosen to connect multiple servers and workstations to switch modules in one chassis. A second chassis will be the bakup of the firs...

I am setting up a large network for my ISP customer. We use cisco router for the VPN and PPPoE server or gateway, use the cisco ACS 3.3(win2003) for the AAA service.We found a problem:If we power off the ez-vpn server (cisco router) or PPPoE Server, ...

What is the quickest way to bring all links up that are available?Setting the load threshold to 1 gives about 2-3 secs per channel, as it brings one up, checks load, brings one up etc.The minimum links does not appear to work as I would expect - with...

Our LAN consists of 3 3548 switches which are used by most production servers and 20-25 hubs. What we have noticed lately is that when we run a backup during the day: backing up serverA from serverB all in these switches , all users in the hubs compl...

HiIs it possible to use Windows NTP severs for time sync on routers and switches running as clients?.We have many dialup users over POTS lines, how can we recieve callerID of these users on our 3660 routers? Is this possible?Thanks in advance

Hi,We just upgrade the CatOs of our 4006 and discover that we were in the field notice problem because of the Lemans error. The problem is that now were having some workstation that can ping 192.168.67.23 but not .24 ??? If we disconnect the network ...

I have 2501 series router with 11.x IOS when i boot it , it gets into Rxboot mode, but when i changed the config register from Rxboot mode to 0x2102 and reload it, but it still goes directly into Rxboot mode. Pls help me i want to get it back to full...

The as5300 is rebooting every 5 to 7 minutes.What may be the reason and how to troubleshoot it.Regds,Prasanna