From: hadek.el-ayachi@nsn.com
Date: Mon Oct 29 2007 - 07:53:19 ART
I agree with you, you mean that I should configure vlans just where it
is necessary!
But, I thanks it will be better (in terms of time and energy) to span
vlans on all switches as vtp do unless it is indicated that vlans should
be configured only&only where it is necessary!
what do you thank?
________________________________
From: ext shiran guez [mailto:shiranp3@gmail.com]
Sent: lundi 29 octobre 2007 10:46
To: El Ayachi Hadek (NSN - MA/Rabat)
Cc: ccielab@groupstudy.com
Subject: Re: Vlans configured in which switches
I will answer that with an example:
R1 connected to SW1 port F0/1
R4 connected to SW4 port F0/4
both are in vlan 14
SW1 have a trunk to SW2
SW2 have a trunk to SW3
SW3 have a trunk to SW4
so the vlan path to get from R1 to R4 is SW1 -> SW2 -> SW3 -> SW4
If you will create vlan 14 only on SW1 and SW4 you will not have a layer
2 connectivity witch will cause you not able to communicate.
So to solve this case you need to Add vlan 14 to all the Switches in the
Path.
If you had R4 connected on SW3 port F0/4 then you did not need to add
vlan 14 on SW4 as he is not in your vlan Path.
also you can trouble shoot if you need to add the vlan or not using
spanning tree
show span vla <#>
if you looked to the out put on SW2 and SW3 without adding the vlan to
the Switch you would not have a spanning tree enabled for the vlan as
due to that also no vlan communication.
On 10/29/07, hadek.el-ayachi@nsn.com <hadek.el-ayachi@nsn.com> wrote:
Hi Experts,
In many cases, we have some set of vlans per switch with some
overlappings between switches.
When using transparent and different vtp domains, must I
configure all
vlans in all switches or configure just necessary vlans per
switch (i.e:
active vlans)?
Thanks for comments
E. HADEK
Nokia Siemens Networks
IP Core planner
5 rue Abou Inane- Hassan
Rabat - Maroc
Tel : +212 37 26 15 30
GSM : + 212 61 44 93 98
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