- VTP Domains
- Posted by smoove on October 6th, 2004
Why would I want to build VTP domains instead of using VTP transparent mode?
Is there a benefit to using VTP domains? Is there a benefit to using
transparent mode?
--
SMOOVE
91 GSXR 750, 96 Chevy C1500, and 94 Suburban
Hated By Many... Confronted By None!
Pain is weakness leaving the body!!!
"it's better to be judged by twelve than carried by six."
www.myhooptie.com
- Posted by Jeff C on October 6th, 2004
"smoove" <reply@to_group.com> wrote in
news:jEI8d.5150$GT4.193@news.flashnewsgroups.com:
VTP allows a group of switches to share VLAN information. A switch
configured as transparent will forward any VTP advertisements received but
will not act on them. That is it will not change it's VLAN information
based on VTP advertisements. If you don't mind configuring VLANs on all of
your switches individually then don't bother with VTP. It makes my life
easier so I use it. I do use transparent in unusual situations where I
specifically do not want any of my normal VLANs imported.
-Jeff C
- Posted by mh on October 6th, 2004
The following is an extract form Cisco doc :
http://cco.cisco.com/en/US/products/... king_protocol
There are pros and cons to VTP's ability to make changes easily on a
network. Many enterprises prefer a cautious approach of using VTP
transparent mode for the following reasons:
It encourages good change control practice, as the requirement to
modify a VLAN on a switch or trunk port has to be considered one
switch at a time.
It limits the risk of an administrator error, such as deleting a VLAN
accidentally and thus impacting the entire domain.
There is no risk from a new switch being introduced into the network
with a higher VTP revision number and overwriting the entire domain's
VLAN configuration.
It encourages VLANs to be pruned from trunks running to switches that
do not have ports in that VLAN, thus making frame flooding more
bandwidth-efficient. Manual pruning also has the benefit of reducing
the spanning tree diameter (see DTP section).
"
- Posted by Hansang Bae on October 6th, 2004
In article <e092fc23.0410060438.c0b755a@posting.google.com> ,
merv.hrabi@rogers.com says...
[snip]
There isn't? That's what the doc says?
--
hsb
"Somehow I imagined this experience would be more rewarding" Calvin
*************** USE ROT13 TO SEE MY EMAIL ADDRESS ****************
************************************************** ******************
Due to the volume of email that I receive, I may not not be able to
reply to emails sent to my account. Please post a followup instead.
************************************************** ******************
- Posted by Andrey Tarasov on October 6th, 2004
Hello, Hansang!
You wrote on Wed, 06 Oct 2004 16:38:38 GMT:
??>> There is no risk from a new switch being introduced into the
??>> network with a higher VTP revision number and overwriting the
??>> entire domain's VLAN configuration.
HB> There isn't? That's what the doc says?
There are pros and cons to VTP's ability to make changes easily on a
network. Many enterprises prefer a cautious approach of using VTP
_transparent_ mode for the following reasons:
With best regards,
Andrey.
- Posted by Hansang Bae on October 6th, 2004
In article <ck195r$2ng6$1@news.aha.ru>, andyvt@email.com says...
Which is why vtp is not in use where I work. It's more of a hassle
unless you have 40 switches in your subnet all strung along.
--
hsb
"Somehow I imagined this experience would be more rewarding" Calvin
*************** USE ROT13 TO SEE MY EMAIL ADDRESS ****************
************************************************** ******************
Due to the volume of email that I receive, I may not not be able to
reply to emails sent to my account. Please post a followup instead.
************************************************** ******************
- Posted by Mike Gallagher on October 7th, 2004
VTPv3 has built-in protections for this, but not 1 or 2. v3 operates
quite differently though,
Mike
"Andrey Tarasov" <andyvt@email.com> wrote in message news:<ck195r$2ng6$1@news.aha.ru>...
