Switching

Hi, I am running a Cisco 4500X with 16 10G Fiber ports and I have used GLC-T on the ports to conver them to ethernet. I am using following IOS. cat4500e-universalk9.SPA.03.06.04.E.152-2.E4.bin When I try to change the speed of the port it doesnt chan...

we have new cisco 3750X-24 switch, first time we boot this switch it boots normally then we access by using console cable after we put some commands, it become not responding no lights are on except PowerSupply and Fan lights, SYST or SYS lights are ...

Hello, host1 only has one single IP, no default gateway, no static route, no routing protocol, "no ip routing" is configured, why it can still access 1.1.1.1? please help. thank you.

Let's say you were building 2 Nexus 7700 series with HSRP, VPC and fabricpath.  You need a 10g line card for connected firewalls and you use a 40g line card for downstream 5k's.  Port density does not dictate buying multiple of either line card so on...

Hi All, I am noticing some unusual behaviour with multicast and IGMP. The Mcast topology is as follows Router01 ------Core_Router------ Primary_RP_Router(10.129.0.9.1) The config on router01 is !ip pim bidir-enableip pim rp-address 10.129.0.9 1 ...

We have  switch migration this weekend where we will be reprogramming a few of our vlans and making a number of changes to the management settings on the switches.  As a result we will be erasing the configs and copying over new configs.  When we do ...

Hello I have created a new VLANs so I need to change the default VLAN to ID of VLAN number 5 as Management VLAN. Furthermore I need to change the IP address and the default gateway to manage remotely this switch. The issue is that after create the VL...

Does anyone know if PIM Bidir is supported on the latest IOS for 3750G access switch  with ip services. I can upgrade to 12.2.55 SE 11

Dear Cisco Forumers, I have the following archtitecture: - PCa (IP 172.17.200.191) is connected to port 21 of CiscoSwitch, this port belongs to VLAN 11. - CiscoSwitch is connected via its port 23 (trunk) to port 6 of GarrettSwitch, which is tagged w...

Hi, I'm having a problem with Multicast RPs(Rendez-vous points) We are enabling multicast in our network and run PIM-SM between a few routers. One router has to be the RP. We configured a Loopback interface and configured all the routers to that ip...

Hi Guys,    I am trying to configure  SPANNING-TREE PSEUDO-INFORMATION on Nexus9000 C92160YC-X but it looks like pseodo-information command is not available on that switch where I have got Nexus9000 C9372PX pair and pseodu-information command is avai...

Hi Guys,    I am trying to configure  SPANNING-TREE PSEUDO-INFORMATION on Nexus9000 C92160YC-X but it looks like pseodo-information command is not available on that switch where I have got Nexus9000 C9372PX pair and pseodu-information command is avai...

Hey all, I am utterly baffled by what I encountered today on my network. The below output is the results of a show spanning-tree for a VLAN on my network. The totally confusing part of this is that the switch that the command was run from is the ro...