Skip to main content

VLAN Ranges Supported by Different Models of Cisco Switches

Depending on the Platform and Software Version, Cisco Catalyst switches support up to 4096 VLANs.Following data Lists the Cisco Models and VLAN ranges supported by them, also some of the VLAN numbers are reserved and can not be used or modified.

VLAN Range          Range                          Usage                                                                                         VTP
0, 4095                       Reserved                     For system use only.                                                              —–
You cannot see or use these VLANs.
1                                     Normal                         Cisco default. You can use this                                          Yes
VLAN, but you cannot delete it.
2–1001                       Normal                         For Ethernet VLANs. You can                                           Yes
create, use, and delete these VLANs.
1002–1005               Normal                         Cisco defaults for FDDI and Token Ring.                       Yes
You cannot delete VLANs 1002–1005.
1006–1024               Reserved                     For system use only. You cannot see or                        —–
use these VLANS.
1025–4094               Extended                     For Ethernet VLANs only.                        
(Extended type is Not supported in VTP  versions 1 and 2.  The   switch must be in VTP transparent  mode to configure extended range VLANS. Only supported in version 3)


Popular posts from this blog

How to check Gray-log current running version

If you planning to upgrade your graylog and want to see what your graylog current version is, here is how you can check it. Go to the Graylog Web Interface Click on System/Nodes Under System/Nodes --- Click on the N odes  Scroll down to the ' System ' Here you can see the current version of your graylog server

How to import Putty Saved Connections to mRemoteNG

Just started using mRemoteNG and its being very cool to connect to different remote connection with different protocols e.g Window Remote Desktop, VNC to Linux, SSH, HTTP connection etc. from a single application. As new user I configured some remote desktop connection which was quite easy to figure out. But when I wanted to add SSH connections, it came in my mind to import all of the saved connections in the putty. But I couldn't figure it out how can it be done, though it was quite easy and here are the steps. Open your mRemoteNG Create a folder if you want segregation of multiple networks Create a new connection Enter the IP address of remote server under connection in Config pane Under the config pane, select protocol " SSH version 2 ".  Once you select protocol to SSH version 2 you are given option to import putty sessions, as shown in the snap below. In the above snap, I have imported CSR-AWS session from my saved sessions in Putty.

Connection control operation failed for disk 'ide1:0'

I was getting this error while removing Operating System ISO image mounted on the Virtual Machine. What worked for me, is 1. Uncheck the "Connected and Connect at power on" from Device Status. 2. Then Change the Device type from " Datastore ISO File to Client Device " Radio Button 3. and press OK to save the changes. Note:- I was able to remove the mounted ISO only by directly logging to the ESXi at https://esxi-ip-address/ui where it asks "The guest operating system has locked the CD-ROM door and is probably using the CD-ROM, which can prevent the guest from recognizing media changes. If possible, eject the CD-ROM from inside the guest before disconnecting. Disconnect anyway and override the lock?" You need to select yes to eject the CD-ROM and then remove the ISO file successfully.