Switching

Hello, I am an instructor for the US Army. I am redesigning the routing and switching course as we speak. I have ran into a few issues with Packet Tracer 8.0. and any help would be great. issue 1: once i created a lab in PT i want to lock the devices...

Someone explain to me the relation between Root Bridge and Cost

Here are the scenarios I've seen. Problem 1: Plugin a band new device into a switch. We get an IP address but cannot ping/connect to anything. Solutions: BDPU Guard got enabled, Port Security got locked, Disabling 802.3 Energy Efficient Ethernet, Del...

Hello! I am quite new to networking and I was trying to create a network using the RIP protocol as well (because I have two routers). However, I kept trying to add the protocol but the packets are still not sent properly. I also noticed that when i w...

What happens when the transport input ssh command is entered on the switch vty lines?The switch requires a username/password combination for remote access.The SSH client on the switch is enabled.Communication between the switch and remote users is en...

Hello,I'm using show interfaces counters cli command to get traffic on SF300 and SG300 28 port cisco switch interfaces. (using netmiko python library based on SSH connection)It returns the data for the first few ports and then for the rest ones it re...

Hi Team, I have Cisco switch C9200-48P, SW version 16.12.2, SW image CAT9K_LITE_IOSXE and Mode INSTALL. This switch is reflecting under vulnerable assets on our NEXPOSE report, could you please suggest me the next software version and installation gu...

log information：%MODULE-2-MOD_DIAG_FAIL:Module 9 reported failure Ethernet9/1-4due to EEM Event Uncorrectable ECC Interrupt in device DEV_LAMIRA (device error 0xc510025b) Who can tell me what caused this?Help me analyze this log information. Thanks.

I do understand that the managed switches must have a MAC address for manageability access as well as the STP. My question here is: Why there is a unique MAC address on every switch port of a layer 2 Cisco switch?

Hi, I would like to setup IPv6 Multicast and Anycast addressing within packet tracer v8. Is this feature supported yet?  Following up after this question - https://community.cisco.com/t5/switching/how-do-i-enable-ip-multicast-routing-in-packet-tracer...

Hello, I have found this below error on C3750G-48TS. why this error is occurring .   Feb 18 09:47:18.612 GMT+8: %Error 9, Failed to open the file tcpdump: Feb 18 09:47:18.729 GMT+8: %Error 9, Failed to open the file 09:37:22.176771 Feb 18 09:47:18.79...

What kind of questions would I find on an exam relating to Switchport?

Why is the standby output like this?(image not available)