Catalyst C3750 Switch On Gns3
GNS3 do not support add ISO image of Catalyst switch directory. But we can emulate Catalyst Switch base on ISO of Router. This video will show you how to do it.
There is a situation here, I am trying to add a new switch to an exisiting stack and i found out that the switch image in my current stack and the new switch is different. Can i still go ahead and add the switch to the stack?
Switches in GNS3 Posted by Rene Molenaar May 24, 2011 in FAQ I’ve been getting questions about switches in GNS3 so decided to write this article explaining which switching protocols you can or cannot use in GNS3. Cisco 3750 switch stack with different IOS images. Creation and Management of Catalyst 3750 Switch Stacks. #switch 7 provision ws-c3750-48p), in new switch. Switch to something new. Boost speed and performance with our newest, most secure switches! The Catalyst 9300 Series includes our highest density fixed-access, stackable enterprise network switches. Switching and GNS3. One common misconception about GNS3 is that GNS3 does not support advanced switching options. While this was true in the past, GNS3 now supports options such as. Use this if all you need is a basic switch to connect devices in a GNS3 topology. You cannot configure this switch through a CLI, but you can set. Cisco 3750 Ios Image Download For Gns3 Download. If you can’t buy original routers and switches, GNS3. Table 2: Cisco IOS Software Image Files; File Name Description; c3750-ipbase-tar.122-25.SEB.tar: Catalyst 3750 IP base image and device manager files This image has. The switch now gleans endpoint device data information. Running Cisco Switches on GNS3 April 6, 2016 May 9, 2016 ANJAN CHANDRA Catalyst Switch, Cisco, Cisco L2 Switch, GNS3 IOU Running Cisco Catalyst Switch(CLI) on GNS3 using IOU (IOS on Unix) and VirtualBox.
Exisiting Stack: sh version
New Switch: sh version
Ron Maupin♦3 Answers
You should really set the IOS version to be the same before adding a switch to the stack. Basically, the switches need to have the same stack protocol version, and only switches with the same IOS version are guaranteed to have that. Switches with the same major version numbers probably have the same stack protocol version, but that is not guaranteed. Having the same IOS version on a switch before adding it to a stack can save you problems.
Cisco has a very good document, which contains a full explanation about this:
Software Compatibility
Software compatibility between the stack members is determined by the Stack Protocol Version number. To view the stack protocol version of your switch stack, you can issue the show platform stack manager all command.
Switches with the same Cisco IOS software version have the same stack protocol version. Such switches are fully compatible, and all features function properly across the switch stack. Switches with the same Cisco IOS software version as the stack master immediately join the switch stack.
If an incompatibility exists, the fully functional stack members generate a system message that describes the cause of the incompatibility on the specific stack members. The stack master sends the message to all stack members.
Switches with different Cisco IOS software versions likely have different stack protocol versions. Switches with different major version numbers are incompatible and cannot exist in the same switch stack.
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Switches with the same major version number but with a different minor version number as the stack master are considered partially compatible. When connected to a switch stack, a partially compatible switch enters version-mismatch (VM) mode and cannot join the stack as a fully functional member. The software detects the mismatched software and tries to upgrade (or downgrade) the switch in VM mode with the switch stack image or with a tar file image from the switch stack flash memory. The software uses the automatic upgrade (auto-upgrade) and the automatic advise (auto-advise) features.
The auto-upgrade occurs if the software release that runs on the stack master is compatible with the switch in VM mode and the tar file of the current image is available with any of the stack members. If tar file of the current image is not available, the auto-advise feature will recommend that a compatible image be downloaded with the required commands. The auto-upgrade and auto-advise features do not work if the switch master and switch in VM mode run different feature sets/packaging levels (IP services and IP base), but, from Cisco IOS Software Release 12.2(35)SE, auto-upgrade does support upgrades between cryptographic and non-cryptographic images of the same packaging level.
Note: If the auto upgrade does not work on the switch that shows the version mismatch error, use TFTP to manually upgrade the switch.
Ron Maupin♦Ron MaupinSoftware Compatibility
Switches with the same major version number but with a different minor version number as the stack master are considered partially compatible. When connected to a switch stack, a partially compatible switch enters version-mismatch (VM) mode and cannot join the stack as a fully functional member. The software detects the mismatched software and tries to upgrade (or downgrade) the switch in VM mode with the switch stack image or with a tar file image from the switch stack flash memory. The software uses the automatic upgrade (auto-upgrade) and the automatic advise (auto-advise) features.
Note: If the auto upgrade does not work on the switch that shows the version mismatch error, use TFTP to manually upgrade the switch.
Ron RoystonRon RoystonOK Guys, After looking into the answers and help by Ron, this is how i completed the project.I console into the new switch that was being added to stack and check the IOS image installed in the switch. Then i checked the IOS image installed in the stack. As the images were different I had to download IOS that matched the stack. I went to cisco.com to get the IOS. For this you will need the credential to login and from there you can browse to pick the desired IOS. After downloading the IOS, i saved it in the TFTP server folder. Then I consoled back into my new switch and formated the flash of the new switch [using command sw#format flash: ] since there was not enough space to save the new IOS. After that, I transferred the IOS from the tftp folder to flash of the new switch using the TFTP server. Once the IOS was in the flash, I went to config mode of the switch and used the command:
sw(config)# boot system flash:/c3750-ipbasek9-mz.122-55.SE6.bin
sw(congig)# do reload
This rebooted my switch with the new IOS and there was the IOS that matched my IOS with the stack in the new switch.I did this on both of my new switches.
After that, while i was consoled into my new switch before adding them to the stack, I change their priority to 1. I didnt renumber them.
Then, I went to my stack before adding the new switch and used the command:
Cisco Switches Ios For Gns3
stack(config)#switch 7 provision ws-c3750-48p
stack(config)# do wr
Cisco Catalyst Switch
I had my new switches turned off before adding to stack. I installed the switch connected the stack cables to the new switch and stack and tunred on the power. The switch powered on and after a couple of second it became the member of the stack. and there you go all done.
Anyways I want to thank Ron for his help on this.