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CCNA and CCNP candidates who hit their possess Cisco bag labs ofttimes telecommunicate me most an mismatched status that occurs when they cancel a switch’s configuration. Their start plan is gone, as they expect, but the VLAN and VTP aggregation is ease there!

Sounds strange, doesn’t it? Let’s countenance at an example. On SW1, we separate exhibit vlan short and wager in this short production that there are threesome added vlans in use:

SW1#show vlan br

10 VLAN0010 active

20 VLAN0020 active

30 VLAN0030 active

We poverty to totally cancel the router’s start configuration, so we ingest the indite cancel command, support it, and charge without action the streaming config:

SW1#write erase

Erasing the nvram filesystem module vanish every plan files! Continue?

[confirm]

[OK]

Erase of nvram: complete

00:06:00: %SYS-7-NV_BLOCK_INIT: Initalized the geometry of nvram

SW1#reload

System plan has been modified. Save? [yes/no]: n

Proceed with reload? [confirm]

The router reloads, and after exiting falsehood mode, we separate exhibit vlan short again. And modify though the start plan was erased, the vlans are ease there!

Switch#show vlan br

10 VLAN0010 active

20 VLAN0020 active

30 VLAN0030 active

The think is that this vlan and VTP aggregation is actually kept in the VLAN.DAT enter in Flash memory, and the table of Flash are kept on a reload. The enter has to be deleted manually.

There’s a lowercase gimmick to deleting this file. The alter module stimulate you twice to communicate if you rattling poverty to intend disembarrass of this file. Don’t identify “y” or “yes”; meet accept the defaults by touch the convey key. If you identify “y”, the router attempts to withdraw a enter titled “y”, as shown here:

Switch#delete vlan.dat

Delete name [vlan.dat]? y

Delete flash:y? [confirm]

%Error deleting flash:y (No much enter or directory)

Switch#delete vlan.dat

Delete name [vlan.dat]?

Delete flash:vlan.dat? [confirm]

Switch#

The prizewinning artefact to educate for CCNA and CCNP communicating success is by employed on actual Cisco equipment, and by performing work tasks over and over. Repetition is the care of skill, and by genuinely erasing your VLAN and VTP aggregation by deleting the vlan.dat enter from Flash, you’ll be antiquity your Cisco skills to the saucer where your CCNA and CCNP communicating success is a certainty.

Article Source: http://www.articledashboard.com

Chris Bryant, CCIE #12933, is the someone of The Bryant Advantage (www.thebryantadvantage.com), bag of liberated CCNA and CCNP tutorials, The Ultimate CCNA Study Package, and Ultimate CCNP Study Packages. Video courses and training, star and subnetting help, and joint upbringing are also available.

For a FREE double of his stylish e-books, “How To Pass The CCNA” or “How To Pass The CCNP”, beam a letter to chris@thebryantadvantage.com today !