Switching

Why ICMPv6 Neighbor Solicitations are sent as a multicast and not broadcast ?

Ihave switch 3650,2960,sg300 and sg250 switch 3650 is the core and creating on it vlan 4,6,8,10,12 and vlan 1 the deafult i have isr router from my isp but locked from your side i cant change any config in it port g 24 on 3650 connected with isr rout...

I have 1 end host connected on access switch in VLAN 112 and VLAN 112 is created on CORE switch.Between access and CORE switch I have L2 distribution switch. MGMT IP on access and distribution switch is from MGMT VLAN 110.On CORE switch, IP 10.10.200...

Hi, guys, I want to create some local accounts in Cat9300L with OS v16.12, but not working. The following devices are working:1. Cat2960X : work OK    IOS Version 15.2(2)E4 2. Cat3850 : work OK    03.06.08E 3. ASR1001: work OK    asr1001x-universalk9...

What impact do ARP requests have on the network and other local devices?

Hello Community, got another riddle for you ... this is a strange one because it's a custom implementation but I hope it's feasible. Will start with a Diagram : Considering the diagram above and traffic flow from left to right, is there a way for the...

Hi everyoneAfter i upgraded C6800-SUP6T-XL firmware to s6t64-adventerprisek9-mz.SPA.155-1.SY5.binand  reloadSEC BOOT FAIL message keeps coming up and it's stuck on this state i've tried pressing reset button and rebooting but it didn't work   Is ther...

Hello, I'm trying to find the list of switches that a packet passes through during the send and receive phases between source and destination hosts , and the method that I found is using traceroute command. The problem is that traceroute return the r...

Previously we have purchase a number of Cisco switches using Liteon power supply (model number: PA-1251-3A-LF) and our system main power supply is designed based on this Liteon power supply. Currently we received another batch of Cisco switches using...

Hi all,Just wanted to see if anyone can provide some info on the following.  After executing "show ip protocols" on cisco 6509 i have noticed that EIGRP shows routing information sources from sources that are invalid for weeks!  I wanted to know how ...

Hi,We have procured C9200L switches with Network Essentials and DNA Essentials license. After connecting with CSSM, we activated the license following the procedures. Status changed from EVAL to AUTHORIZED. But as we reboot the device, the status of ...

I  get this message on the brand new ASR1009X I am deploying. Why do I get this error message and why is it specific to the ESP modules? %CMFP-2-BAD_ID_HW: F1: cman_fp: Failed Identification Test in ASR1000-ESP100-X . The module “serial number” may n...

Sorry for posting so many questions about issues with connecting to devices, and thank you in advance for all the help. Okay, so I am trying to access a SG300-52P using the Console port (DB9 port on the back of the switch). I purchased a USB to RS232...