Switching

HiI have a few switches ( let's say 3550/3560) with all port as a trunk. On every port i have different native vlan, other than 1. What tag, on trunk ports,  switch uses for transmit normal STP frames ? or VTP, LACP, PaGP ? It's vlan 1 ? i have to ha...

hi,i have 3 questions.1.i read that the line rate is the speed of all ports sending traffic at the same time, full-duplex, at the maximum speed of the interface.would that mean if i talk about the line-rate of a switch (e.g. 24 port switch gigabit) t...

We are having some issues between our (2) Windows 2003 Storage servers and Windows 7 client machines. The issue that is occuring is that the users indicate they temporarily loose network connection to their mapped drives on these servers. This may ha...

Hi guys,Yesterday I configured 'switchport nonegotiate' on a 6503 and a 6506 on the uplink switchports to neighbouring 3750's.While our Cisco VoIP phones and all PCs continued to function correctly, our Wyse thin client devices kept kicking the users...

I'm trying to trunk  Fa0/3 port of 3524XL switch and Gi0/1 port of 3650G, below are the commands used.In Cisco 3524XL:# interface FastEthernet0/3 description uplink to 3560 port group 1 switchport trunk encapsulation dot1q switchport mode trunkendIn ...

Hi,We have two devices connected through a several miles DWDM connection (two switchports 10GBSR).We would like to measure the delay for that connection.Any suggestion about the best way to do it?Thank your very much.

Hi Experts,I am experiencing high cpu utilization in my 4000 series core switch.I checked the loggs. i saw some strange loggs.Please see the below loggs and adviceCore1#sh verCisco IOS Software, Catalyst 4000 L3 Switch Software (cat4000-I5S-M), Versi...

Is it posible to encrypt traffic in a LAN?. Let me explain. I am renting two floors on a building, I have users (15 users) in floor 10 and  users (30 users) in floor 22. The connectivity between the two floors (uplink) is provided by the building, so...

i have a IBM server(have giga ethernet) which is directly connected with 3750 giga switch... i facing this.  1. when i have configure the switch port as auto, then data transfer is very slow between switch and the server.2. when i have configure the ...

Hello:My organization has a security office who is trying to make our IT department's security posture hyper-secure.  One suggestion that the security officer is pushing hard is that all internal "data in transit" is encrypted with IPSec (they're not...

HI Experts,In my lab setup i configured Cisco 3560 switch.VLAN 20 and VLAN 30 i configured. VLAN 20 interface IP : 192.168.20.1/24 VLAN 30 interface IP : 192.168.30.1/24.Inter-vlan communication is happening fine. For testing for purpose i configured...

Hello, I have a problem with nat and clients to access a public IP that is really in my LAN. Also known as hairpinning. Im using a 800 series with IOS. I can’t do dns rewrite or anything like that, nor change anything on the clients. I have to solve...