GroupStudy.com GroupStudy.com - A virtual community of network engineers
 Home  BookStore  StudyNotes  Links  Archives  StudyRooms  HelpWanted  Discounts  Login
RE: vlan minimization posted 11/14/2003
[Chronological Index] [Thread Index] [Top] [Date Prev][Date Next] [Thread Prev][Thread Next]


here is the link...
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12119ea1/3550scg/swvlan.htm#1150302
with the new code you can remove vlan 1 and 1002-1005.

Ozgur
-----Original Message-----
From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx]On Behalf Of
R&S Groupstudy
Sent: Friday, November 14, 2003 9:59 AM
To: 'Ccielab (E-mail); Ozgur Guler (Garanti Teknoloji)
Subject: RE: vlan minimization


Please can you post the CCO link?
I was under the impression that vlan 1 could not be removed from trunk links
for the reason you specify below.
thanks

Adam

> ----------
> From: 	Ozgur Guler (Garanti Teknoloji)[SMTP:OzgurG@xxxxxxxxxxxxxx]
> Reply To: 	Ozgur Guler (Garanti Teknoloji)
> Sent: 	Friday, November 14, 2003 7:30 AM
> To: 	'Ccielab (E-mail)
> Subject: 	vlan minimization
>
> hello group,
>
> cco says
> "To reduce the risk of spanning-tree loops or storms, you can disable VLAN
> 1
> on any individual VLAN trunk port by removing VLAN 1 from the allowed
> list.
> This is known as VLAN 1 minimization. VLAN 1 minimization disables VLAN 1
> (the
> default VLAN on all Cisco switch trunk ports) on an individual VLAN trunk
> link. As a result, no user traffic, including spanning-tree
> advertisements, is
> sent or received on VLAN 1. "
> isnt that statement somewhat contradictory by itself...
> it says "To reduce the risk of spanning-tree loops or storms"
> then it says no user traffic, including spanning-tree advertisements, is
> sent
> or received on VLAN 1.
> afaik, blocking spanning tree advertisement is "a reason" for spt loops.
> i would be happy if someone can shed some light on this one.
>
> Ozgur
>
>
> This message and attachments are confidential and intended solely for the
> individual(s) stated in this
> message.If you received this message although you are not the addressee
> you
> are responsible to keep the
> message confidential .The sender has no responsibility for the accuracy or
> correctness of the
> information in the message and its attachments.Our company shall have no
> liability for any changes
> or late receiving,loss of integrity and confidentiality,viruses and any
> damages caused in
> anyway to your computer system.
>
> Bu mesaj ve ekleri mesajda gonderildigi belirtilen kisi/kisilere ozeldir
> ve
> gizlidir.Bu mesajin muhatabi
> olmamaniza ragmen tarafiniza ulasmis olmasi halinde mesaj iceriginin
> gizliligi
> ve bu gizlilik yukumlulugune
> uyulmasi zorunlulugu tarafiniz icin de soz konusudur.Mesaj ve eklerinde
> yer
> alan bilgilerin dogrulugu ve
> guncelligi konusunda gonderenin ya da sirketimizin herhangi bir
> sorumlulugu
> bulunmamaktadir.Sirketimiz
> mesajin ve bilgilerinin size degisiklige ugrayarak veya gec ulasmasindan,
> butunlugunun ve gizliliginin
> korunamamasindan, virus icermesinden ve bilgisayar sisteminize
> verebilecegi
> herhangi bir zarardan
> sorumlu tutulamaz.
>
> _______________________________________________________________________
> Please help support GroupStudy by purchasing your study materials from:
> http://shop.groupstudy.com
>
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html

[GroupStudy removed an attachment of type application/ms-tnef]

_______________________________________________________________________
Please help support GroupStudy by purchasing your study materials from:
http://shop.groupstudy.com

Subscription information may be found at:
http://www.groupstudy.com/list/CCIELab.html

This message and attachments are confidential and intended solely for the individual(s) stated in this
message.If you received this message although you are not the addressee you are responsible to keep the
message confidential .The sender has no responsibility for the accuracy or correctness of the
information in the message and its attachments.Our company shall have no liability for any changes
or late receiving,loss of integrity and confidentiality,viruses and any damages caused in
anyway to your computer system.

Bu mesaj ve ekleri mesajda gonderildigi belirtilen kisi/kisilere ozeldir ve gizlidir.Bu mesajin muhatabi
olmamaniza ragmen tarafiniza ulasmis olmasi halinde mesaj iceriginin gizliligi ve bu gizlilik yukumlulugune
uyulmasi zorunlulugu tarafiniz icin de soz konusudur.Mesaj ve eklerinde yer alan bilgilerin dogrulugu ve
guncelligi konusunda gonderenin ya da sirketimizin herhangi bir sorumlulugu bulunmamaktadir.Sirketimiz
mesajin ve bilgilerinin size degisiklige ugrayarak veya gec ulasmasindan, butunlugunun ve gizliliginin
korunamamasindan, virus icermesinden ve bilgisayar sisteminize verebilecegi herhangi bir zarardan
sorumlu tutulamaz.