Hi, I've stacked 4 3750-48TS together, and configured master member switches.
But what happens when 1 of them fails, and i put a new 3750-48TS into the same location, will the others configure it to the same as the old. And what about the IOS? Will it be upgraded to the same level as the others.
No, if you replace a failed member of the stack with a new switch it will not by default take the place of the original member. It will be configured with a different stack number.
However, if a switch fails one of the other members of the stack will become the master and take over the duties of the failed member.
If you want to configure the new switch with the same switch number as the original switch (so that your old port configurations map to the ports on the new switch for example) you can use the "switch X renumber Y" command, where X is the switches current number (e.g. 5) and Y in the switch number of the original switch (e.g. 1).
Before a new switch will become a participating member of the stack you will need to make sure that it is running thr same IOS as the other members. You can do this by physically adding the switch to the stack and then using the "archive copy-sw" command to copy the software from one of the active members to the inactive member.
For more information on the behaviour of the switch stack see "Understanding Switch Stacks" in Managing Switch Stacks at
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.