Switching

Hi Cisco community. My first post here, we have had some really weird incidents with one one of our Cisco 4500E switches. It keeps rebooting without a clear cause. The system says its "returned to rom by power-on". We switched the Power supplies and ...

HiIf I install an Enhanced Etherswitch Layer 2 Service Module (SM-ES2-24) in a 2911 router can I do the following:- - create SVIs on the router ie vlan interfaces- create the relevant vlans on the Etherswitch and assign to access ports- have the rout...

I have tried other brands successfully and DHCP gives other phones an IP address, but I have no idea why this Polycom VXX410 will not get an IP address from this Cisco switch. I have tried to connect this phone to another switch on our LAN through a ...

hi!It's a simple question that one of my friend asked me and I was Unable to answer so I decided to ask here.Why default gateway and end IP of end user computer  must be in a same subnet? for example why Router0 and PC0 are in same subnet.

I am looking for a solution to simulate real traffic on Nexus 3048, which are UDP/TCP traffic. Some engineer says the switch can simulate it, but I doubt it. Is it true a switch can simulate layer 4 traffic?

In the diagram below how will I assign switch ports to Switch 1?

HI All, Whe configuring Multicast at layer 2 with a few switches and main switch with the SVI on. Is ip pim sparse-dense-mode the only viable option ?     

hello, What could be the case when Nexus5548 version 3.6.0 doesnt show some mac-addresses in theirs mac address table. Even though i see the arp and i can ping them. sho mac address-table count MAC Entries for all vlans: Dynamic Address Count: 1941 ...

For an assignment I have to set up a network. I have to do the routing through RIP which seemed easy enough until I encountered this problem:I have highlighted the path I want to test.Basically I've filled in the RIP configurations on all routers alo...

Hello, If I have 3850 switch configured with the boot flash command twice such as boot flash: ios1 and then boot flash:ios2 for the switch to automatically load to ios2 in case ios1 doesn't work or with configuring only once boot flash: ios1 no need...

Hi, i need an advice to choose a core switch for my network. Now i have a flat network with some 3750E stacked and some 3750G. 3750E are connected with 10Gb fiber and 3750G with 1Gb Fiber.After summer i need to buy 2 switches for 2 server rooms (i th...