We have 6509 MLS on our campus Network which is running for past 1 years and it has external flash card (PCMCIA ) in the Slot 1 . Very recently , we have bought second 6509 for Redundancy which does not have external flash ( PCMCIA card ) means it has only internal flash . As per vendor comments , external flash is not mandatory to configure and bring the 6509 up and running . Is it true ?.
My second Question is , we want to try some commands in redundant 6509 in offline and how to clear all the configuration before we move this new 6509 to production environment (live Network) ?.
Yes, the 6500 will operate without a PCMCIA flash card. This card can be used to store new IOS/CatOS images, configuration files, etc. but the internal flash is still available for this purpose.
The command you are looking for is "clear config all" assuming CatOS. If it is running native IOS or if you are talking about a routing engine such as a MSFC, then you would issue "erase startup-config".
FYI, before plugging the switch back into the production network, make sure you validate the VTP settings so that you don't blow any VLAN configurations away on accident.
Thanks Bob. It has Routing engine (MSFC card) and I would like to know the command on Switch side to clear all the Vlan's created , VTP domain info and clearing Management IP etc. .. and command Router side clearing IP addresses for all interfaces (Virtual) corresponding to Vlan's on New 6509 .
These commands should make sure that 6500 will be in factory settings when we move this to live Network and we will start configure this new Switch as Redundancy for existing 6509 in co ordination with Vendor.
OK, on the MSFC, a simple "erase startup-config " or "write erase" will clear out the config in nvram for the IOS.
The switch can be a little different. First, erase the configuration on the switch by using "clear config all". This should erase all of the configuration settings including VLANs and VTP information. However, if you are using VTP in your network in any mode other than transparent you will want to verify that these settings are gone and that the current VTP config revision is zero.
Here is a list of commands that can help with this:
show config system
show vtp domain
This will show you what your current VTP domain are as well as what the config revision is.
set vtp domain "domain name"
set vtp mode "client/server/transparent/off"
The important things to remember are that you have to be a server or in transparent mode to add and remove VLANs and that to reset the config revision you have to change your VTP domain to something else, and then back to whatever your normally use. Always check the VTP config revision before plugging a switch into your network. I had a colleague wipe out all of the VLANs for a large hospital while plugging in a 2900 one time.
I tried few commands on Switch side and Router side as well in 6509 . I used "write erase " to clear the config on Router side . After rebooting Switch , if I go to Router (session 15) it gives the prompt like "Router (boot) > " and I went to enable mode and the prompt comes like Router(boot)# . I changed the Router hostname to " test " and it appears Test (boot)# . I feel there is some boot registry got changed . Would you advise me what went wrong and what's the remedy ?. Of course , this 6509 is offline and we will plug in to live next week as redundancy for our existing 6509 .
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