If you have multiple VLAN's and a tiered architecture, VTP pruning can fit in nicely.
Essentially, it just prevents broadcasts from VLAN X traversing links toward switches
that do not have ports in VLAN X. I am not aware of any downside related to its use.
*********** REPLY SEPARATOR ***********
On 3/20/2001 at 12:20 PM Lopez, Robert wrote:
>Pete,
>
>You are correct. I will have to add the additional vlans manually.
>However,
>another project that just got put on my plate is to look into the whole VTP
>issue. Through my reading, I like the idea of the vtp pruning as well.
>What are your thoughts on VTP pruning?
>
>Robert
>
>-----Original Message-----
>From: Peter Van Oene [mailto:[EMAIL PROTECTED]]
>Sent: Tuesday, March 20, 2001 12:06 PM
>To: Lopez, Robert; [EMAIL PROTECTED]
>Subject: RE: vlans and trunking
>
>
>Although its working, I suggest it may not be doing what you want it to.
>
>VTP transparent mode means that the VLAN config on each switch is only
>locally significant. That means if you add a VLAN to a switch, you will
>have to go and add the same VLAN to every other switch, which is exactly
>was
>VTP is intended to prevent :)
>
>If you would like VTP to work, it would be wise to configure a couple key
>switches as servers and set the rest to client mode. Before doing this
>however, I highly suggest you read up on VTP and become comfortable with
>the
>nuances before you begin a migration.
>
>Pete
>
>
>*********** REPLY SEPARATOR ***********
>
>On 3/20/2001 at 11:54 AM Lopez, Robert wrote:
>
>>I just solved the problem.
>>
>>I needed the sc0 interface to be in vlan 100 - it was in vlan 1 by
>default?
>>
>>As I compared the 5500 config against the 6509 configs, I found that on
>the
>>6509's the VTP mode was set to transparent and on the 5500 it was set on
>>server. I simply changed the mode to transparent on the 5500 and at that
>>point I was able to put sc0 in vlan 100. I can see more vlan 1 on the
>5500
>>trunk now. I think I'm good to go!
>>
>>Robert
>>
>>-----Original Message-----
>>From: Peter Van Oene [mailto:[EMAIL PROTECTED]]
>>Sent: Tuesday, March 20, 2001 11:30 AM
>>To: Lopez, Robert
>>Subject: Re: vlans and trunking
>>
>>
>>ISL vs Q issues? VTP issues?
>>
>>*********** REPLY SEPARATOR ***********
>>
>>On 3/20/2001 at 10:49 AM Lopez, Robert wrote:
>>
>>>I have the following scenario:
>>>
>>>6509-----6509----
>>>| | |
>>>| | |5500
>>>6509-----6509----
>>>
>>>The 6509's are in a full mesh (not in picture) and configured as trunks
>on
>>>all links. I've added the 5500 and configured two trunk ports. The trunk
>>>ports are configured on the two 6509's as it relates to the 5500 as
>well.
>>>
>>>When I do a sh trunk on the 5500, I have a question as to why is it that
>>>only vlan1 shows up in the columns -
>>>
>>>Vlans allowed and active in management domain
>>>
>>>Vlans in spanning tree forwarding state and not pruned
>>>
>>>TIA for any suggestions!
>>>
>>>Robert
>>>
>>>
>>>
>>>Robert M. Lopez
>>>Network Planning
>>>Ann Arbor Data Center
>>>Pfizer Global Research & Development
>>>
>>>
>>>
>>>
>>>
>>>_________________________________
>>>FAQ, list archives, and subscription info:
>>>http://www.groupstudy.com/list/cisco.html
>>>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
>v
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
