Switching

I am trying to sync and NTP master to a more relaible time source.I have tried internal servers and internet based time servers and they are all coming back with validty test failures.Config is as follows:ntp source Loopback99ntp access-group serve 4...

Hi can anyone please correct me:CallManager have to stick in the Voice Vlan ID :) thanks i really appreciate it!!

I need to confirm a couple setting on my Catalyst 3500 XL Switch and my documentation not to clear on how to do this. The setting are:1. I want to make sure IGMP Snooping is Disabled.2. I want to make sure multicast filtering is Disabled.I can not f...

Hi,We have a problem on newly installed 3750's whereby we also have recently had new Dell PC's causing the CPU processes to reach 100% when they are rebooted. The high CPU % is only noticed when the NIC's are restarted.WOL has been disabled and the ...

Can someone please explain to me the difference between the commands, "switchport port-security" (which is the only mandatory command needed to configure port security); and also the "switchport port-security mac-address sticky" command. Doesn't the...

Hi, I am new to do practical implemention of data networking so have few small small questions, hope someone will help me.I have two racks in which i have servers, Rack 1 is active and rack 2 is secondary.on rack 1 i have one L3 switch and same as in...

how default route works

Hi,can any one send me the procedure for upgrading the IOS for Cisco 3560G swicth.When I tried with the following commnad it says Error reading file.File does not exit(conf t)# copy flash tftp Please sned me the procedure.Thanks and regrads,S.Venkata...

Hello All, I have a complex design using IPSec tunnels to connect remote users. The IPSec tunnels to the devices work, however occasionally they drop. When the IPSec tunnels drop I seem to be getting the follow error being logged with ISAKMP and IPSe...

Hi all, is it possible for network devices to communicate only via mac address, or does ip need to be involved somewhere ?

Hi i paln to connect a blad to a Cisco 3550 and need to transfer the VLAN from Cisco to HP. I knwo HP do not support this can anyone give me a template to configure for the Cisco internface using the correct protocal i assum LACP?

Hi all, on my 3550 switch, I have several vlans, for the default gateway for management I have set this as the ip address of one of the vlan interfaces, is this correct ?

Hi i had an weird problem,one of my access Switch (4506) got restarted without any reason.When i check in logs it doesnot show me anything.Can any one help me what is the issue.Please find below config on my switch.cisco WS-C4507R (MPC8245):ROM: 12.2...