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Hi there,As I know the STP root port is a switch port with the lowest cost to the root bridge. The the Switch has to choose between 2 ports witch equal cost to the root, to port with the lower ID becomes the root. PortID=priority.number (ex: 128.7).I...
Hi there,There are 2 common vlan attacks:1. switch spoofing2. double taggingMy question is: when the switch gets a double tagged frame doesn't it consider the frame an error and drops it? Even more, does the Switch permit tagged frames as native vla...
Hello,When a route becomes Active the router queries its neighbor. It waits 3 minutes (by default) and if it doesn't get a reply for every query the route becomes Stuck in Active.What happens with the route after it becomes SIA? How log does it remai...
Hello,Is the 2950 Switch a cut-through switch?Can I enable fast-swithing, fragment-free sau adaptive cut-through?I've searched its Software Configuration Guide but no reference to switching methods. Thank you
Hi there,I have 2 questions regarding the 2950 switch:1. How can I change the console bound rate from Rommonitor? I've searched on Cisco.com and there was something like. set BOUND 115200. It seems it doesn't work. Any idea?2. The swith as n+1 mac ad...
Hello,Just to make my question clear: It is said that the default version of VTP is 1. Here is the output from show vtp status from a default configuration switch:Look at the 1st and 8th line of the output. The first line says VTP VERSION 2 and the 8...
In the global config you need:(config)#ip dhcp snoopingAND(config)#ip dhcp snooping vlan 1On my switches if I don't issue both commands it doesn't work.
Thank you for the clarification.Let me know if I understood the process: If the Switch differentiates the users from the MAC Header, the source MAC address is the only way it could differentiates between users behind a port. If this is true we can fa...
Hi there,You could enable vtp prunning ONLY on the server. On the client the Switch rejects the command.What I don't understand about the default version is that there is something unclear in the output of sh vtp statusOn the top there is VTP version...
Ok, thank you for the clarification.But how can a switch differentiate between users behind a port. They are just sending frames to the port.The switch must function something like this: this frame is from an authenticated user and I let it through,...
