Switching

                   If I increase the subnet size on a vlan say for example:vlan10 ip address 10.10.10.22 255.255.255.128tovlan10 ip address 10.10.10.22 255.255.255.0Will I have to change the subnets of the devices that are currently in that vlan (rou...

I have attached the diagram 1. Router LHR For WAN (1 physical interface on which using 2 subinterfaces) - Fa0/0 1.0.0.0/24 & Fa0/0.1 3.0.0.0/242. Router (ISP) Using 4 physical interfaces (2 of them are connected to the Switch for Router LHR)Problem i...

Hello,Now i have two seperate stacks 2x 2xc3750x-24-p. They are connected eachother via sfp+ port. How can i stack this two stack in safe way ? There is possibility to merge config automatically ? Software is the same on all nodes.For now, i found pr...

Hi,I have tow networks on my two router interfaces i.e on f0/0 and f0/1. I can ping from pc to the other network pc but canot ping the other network switch nor both switches can ping eachother. I cannot understand why. plz help.

Does anyone know the exakt difference between this two versions? I can only suggest it's for stacking 2960X and 2960S (and hope it doesn't have the 2960X-Bug )?Release notes only mention the 2960X!?Thanks in advance.

Hi All,I'm getting high CPU utilization in Cisco-3750E because of hpm main process. Please share your suggestions for decreasing the same.SECXI-DC-SWT-DS#sh processes cpu sorCPU utilization for five seconds: 63%/18%; one minute: 57%; five minutes: 58...

Hi Guys,Come across a strange issue where we are seeing the following error: "%ETHCNTR-3-LOOP_BACK_DETECTED: on all uplink ports connected to downstream switches from the distribution switch.  These downstream switches are singly connected by one up...

Hello,Does CEF works with SVI or only routed ports i.e. If i have only configured SVIs on my multilayer switch (no routed ports), will "sh ip cef vlan x" command display FIB table?thanks         

Dear ExpertsRecently we have install windows 2012 active direcoty on our network. The network consisted with cisco devices. Cisco 3750 act as the core stack in the network.  With the installtion of Active directory the 3750 stack shows high cpu utili...

Hi,I have a strange situation. I have 15 pcs of C2960S, all of them connected to a 4500-X by 10 Gb fiber. All the switches are in VLAN 9 - the have 192.168.1.x/24 IP addresses. In VLAN 1 - 172.16.5.0/24 I have CPI v 1.36 switches are not reachable by...

I have a 1760 router that I am working on andit now is stuck in ROMMOM when I turn it on.  I tried changing Confreg to 0x2102, no luck.  BUT, if I tyoe in boot flash:isofilename.bin, it DOES boot up.   From what I can tell, the IOS is not crupt but I...