Switching

Hello Community,I have question why a MAC address become static. My labor environment looks like this: C9200 (VLAN-1, access-port) <-> unmanaged Netgear switch When a device is connected through the Netgear, the MAC address of this device will be sto...

I have a 9300 switch, and after boot stuck in rommon mode prompt switch: How can I make the switch to boot in normal mode. I have the required IOS in a FTP server. Please advise.  switch: bootWARNING: Bootable URL's in BOOT variable not found or exha...

Hi all, how can i block snmp and ntp ports on my Public L3 switch Cat 4506e?I have multiple interfaces as router interfaces and on all of them are these ports open.How can i block them from the piblic internet and allow only from my local netwoks IP ...

Hi How do i setup an DHCP server on my 3750x, that will work with all my private vlans? Best greetings from Christian Josiassen

Hello, I am trying to run Packet Tracer 7.3.0  on a Win 7 32 machine. After installation when I am trying to start PK I am receiving an error message and when I'm clicking ok I am getting to the second one. Also, if I am trying to open a .pka file I ...

Hello everyone, I am facing a strange problem and after some unsuccessful research, I would like to request the help and advise from the community. I have looked for similar issues around the web but didn't find the solution so far. My switch is conf...

Hi,When I first try to manage a network that is connected the following error message appears: Unable to reach the server. Why? See pics attached about the error message and about the related network connection.Username: webuiPassword: ciscoThx!  

Hello, I have a Cisco 2900 which WAN interface works with double VLAN tagging as below, interface GigabitEthernet0/0.1501encapsulation dot1Q 2525 second-dot1q 1501ip address 172.26.145.34 255.255.255.252I am trying to migrate this Cisco router to Nex...

Hi, We prefer to use below command to upgrade stacked switch. It automatically extracts from the archive, pushed imager to all member switches and sets boot statement.archive download-sw /leave-old-sw ftp://username:password@10.4.1.104/c2960x-univers...

Hello everyone Please i need help with this qos configuration Users report latency on the network The switch has already been checked (cpu, memory, logs) Thanks a lot  mls qos map cos-dscp 0 8 16 24 32 46 48 56mls qos srr-queue input bandwidth 90 10m...

I'm in the process of designing a cooling system for an IT room housing a number of Catalyst 9200-48P switches, and I'm trying to understand what the heat load within the room will be. The unit has a 1000w power supply, and can supply a maximum of 74...

I am planning to upgrade from 6509 catos to cisco ios. I took config backup but I want to convert the cat commands according to cisco ios because cat commands are different.How to convert them. every commands starts with "set" in catOS in show run. I...

what meas the follow erros log.Is an information message or is necesary to take an action? Mar 3 10:40:50 GMT: %IOSXE-3-PLATFORM: Switch 2 R0/0: /usr/sbin/boot_verify_package: File /ucode0/lost+found is a directory