Switching

There have been a few questions regarding working temperature of kit. All are referred to the relevant data-sheet(s) which usually list a wide range of temperatures such as 0C to 40CIs there any documentation regarding an optimal temperature range wi...

We migrated from Catalyst 6k5 to 9k platform and found that DHCP snooping works different on the new platform. I cannot find if it is a feature or bug. So far we had DHCP snooping only in access layer, not in core. After migration, the end hosts were...

I need to load an IOS onto a 3850 due to a data corruption on the device.  Can I just copy the IOS file onto a standard USB stick, or does it require some odd file format?  Anything else I need to be aware of?

Hi Team, I am working on commissioning new Console server using cisco 2901 router. I need to upgrade the IOS through USB drive. I have attached pen drive to the USB port on the router however its not getting recognized. there are no logs on the devic...

Hello,I don't know why on my multiple 3850, command "sho usbflash0:" responds "no such device".I did try with different USB sticks those verified work on PC .The light on one of the USB sticks did light up and blinking.Is there a way to "mount" this ...

Hi,is it possible to connect clients via on Interface to different VLANs when using 802.1x multi-auth?Example:Interface Gi1/0/1 (all clients connected to the same port)Client 1 - VLAN 11Client 2 - VLAN 12Client 3 - VLAN 13 Tried to check the document...

Hi Friends, In an interview I have been asked "What is Layer 2 and Layer 3 VLAN ". I answered them, Layer 2 VLAN is a single broadcast domain. It works on layer 2 (Datalink Layer). They can communicate only within it.  And L3 VLAN is an Interface, th...

HiI want to create stack switch which in 9500 series,but here is some questions that they are should be in same Part number or same series.For Example can i create stack switch with these P/N : C9500-40X-A and C9500-32C-Aor should be with these state...

Dear   i have Cisco 3 layer switch  connect to firewall which do routing to destination lan this configuration for 3 layer switch :-no aaa new-modelswitch 1 provision ws-c3750g-24ts!shutdown vlan 43ip subnet-zeroip routing no file verify autospanning...

As the title says, we are playing around with DAI. I have DHCP snooping and IP Source Guard setup and it seems to be working fine. The devices are pulling IPs quick, and then booting to their images, which are supplied through Citrix. When I enable a...

Hello Team, I have a network where i have to do RSPAN port configuration to monitor traffic. The network is very big so we are doing RSPAN from each location  ( 25 switch altogether)  and move it towards an aggregation switch and then from there i wa...