Switching

I have several 2950's that I am unable to telnet to. I have connected to their neighbors and CDP is working correctly and updating. If you reboot the switch it usually resolves the issue for a brief before, but then eventually stops working. All o...

The Sup2 module in slot 1 failed and slot 2 became active. I replaced the Sup2 module in slot 1. Everything looks Ok and it appears that the CAt OS and IOS images have synched as well. But I don't like the output of the SHOW MODULE command now becaus...

Good day networking gurus!I was designing a Network using Packet Tracer 4.0. Unfortunately, I came across a dead-end. I cannot think of a way to let two Routers communicate.Here is the format. Executive Computer | ...

I assume that it must be RSTP which has the highest degree of compatibility with any other STP flavours.Am I right ? I couldn't find anything in the documentation and I do not have access to a switch running MSTThank youCristian

Hi,First please excuse my lack of knowledge, today is my 2nd day ever touching a Cisco equipment.I got this router, and i want to use it at home for my 8 static IPs. I will have one firewall behind this router, which connects me to the corporate VPN,...

Any basic Cisco (or even Linksys) switch will connect and work with the Cisco 804 ISDN router, won't it?

Hi all, can anyone tell me the different kinds of broadcasts that are used ?

Here is the strangest thing I have ever seen.Working network, with Cat4006 at the core. Bringing in vmware, so bought 3750G-48-TS switch. Setup trunking from 3750 Gi1/0/48 to port 5/22 on 4006.Ping works. Telnet works (with some commands pausing on t...

I have a 3550 Catalyst switch once I power it up, It displays this error message "!!! Warning: This switch is not usable !!!". When I did show run, both the Gigabitethernet/fastethernet ports did not display. If I plug my laptop to the switch my LAN ...

is there any real practical use for the native vlan on an 802.1q trunk port? i have read that the native vlan is also referred to as a managmement vlan. does this imply my management vlan and native vlan should be the same, and if so, why?

Does anyone know if there is a bug with SNMP in 12.4(11)T? Have 2 routers on 12.4(11)T and basic snmp polls are not working with basic snmp-server setup. In debugs on router, I see request come in and see router process the response but the SNMP appl...

Greetings.We have a 2811 in a remote location which connects to our core network using IPSEC tunnels over the Internet.We have NTP configured pointing to four different servers. The servers are reachable from the router through the IPSEC tunnels no p...