Cisco 3750POE Switch Failure in Stack
Hi Experts
We had one of our 3750's hardware fail, will not power on. Were currently purchased a new 3750 to replace. Would like some general guidelines on the steps to do so. the most important we want the vlan information to come across.
Do we backup the config on an existing switch and apply it on the new one? - We tried and received a lot of errors
Do we apply the vlan and other port information (below is our existing) to match what we already have.
How do we place the switch back in the stack, unpowered and connect all the stacking cables and then power it on?
What Impact will that have on the stack, will it power down?
What will and will not come across after we add the switch to the stack, do we need to set a password on the new switch, I know after you add the switch the master takes over and it applies some information - firmware.
The switches in the stack has a lower SW Version than the new switch being added will it be downgraded automatically or something we have to do manually. (sw version of the switches in stack 12.2(25) SEB4 \ New Switch 12.2(55)SB
interface FastEthernet1/0/12
switchport access vlan 10
switchport voice vlan 20
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
mls qos trust device cisco-phone
mls qos trust cos
auto qos voip cisco-phone
spanning-tree portfast
Thanks Much
We had one of our 3750's hardware fail, will not power on. Were currently purchased a new 3750 to replace. Would like some general guidelines on the steps to do so. the most important we want the vlan information to come across.
Do we backup the config on an existing switch and apply it on the new one? - We tried and received a lot of errors
Do we apply the vlan and other port information (below is our existing) to match what we already have.
How do we place the switch back in the stack, unpowered and connect all the stacking cables and then power it on?
What Impact will that have on the stack, will it power down?
What will and will not come across after we add the switch to the stack, do we need to set a password on the new switch, I know after you add the switch the master takes over and it applies some information - firmware.
The switches in the stack has a lower SW Version than the new switch being added will it be downgraded automatically or something we have to do manually. (sw version of the switches in stack 12.2(25) SEB4 \ New Switch 12.2(55)SB
interface FastEthernet1/0/12
switchport access vlan 10
switchport voice vlan 20
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
mls qos trust device cisco-phone
mls qos trust cos
auto qos voip cisco-phone
spanning-tree portfast
Thanks Much
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Hi Predrag,
Followup question. We purchased another switch and will be keeping it as a backup in case of failure. We have three switches in the stack, the current master has a fiber cable connected to the uplink\trunk port. Is there any configuration needed if we ever have to configure the back switch uplink\trunk port?
Thanks,
Followup question. We purchased another switch and will be keeping it as a backup in case of failure. We have three switches in the stack, the current master has a fiber cable connected to the uplink\trunk port. Is there any configuration needed if we ever have to configure the back switch uplink\trunk port?
Thanks,
That depends on how you create stack. It is recommended to provision stack members or not. However, provisioning stack members is recommended so each stack member always is assigned the same slot (better control). But anyway, in situation that you are replacing switch that is not provisioned you migh need to renumber stack members.
You can find some details on above link - chapter: Remove a Member from the Stack.
You can find some details on above link - chapter: Remove a Member from the Stack.
ASKER