HI All My Bad ! So sorry for inconvinience .... i missed out one of trunk on my switch ( which had default all vlans enabled ).. sorry again .
But that has clearified simple point causing unnecessary confusion in my mind . Thnx again Gaurav Madan. 2008/2/20 Miedema, Jan-Symen <[EMAIL PROTECTED]>: > Brian, > > Note that this has to do with 'autostate' function in the software and for > conditions for a VLAN to be up/up, check: > > http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a0080160b14.shtml > > This will not be a bug ;-) > > Regards, > JS > > ------------------------------ > *From:* [EMAIL PROTECTED] [mailto: > [EMAIL PROTECTED] *On Behalf Of *GAURAV MADAN > *Sent:* woensdag 20 februari 2008 13:42 > *To:* Brian K Valentine > *Cc:* [email protected] > *Subject:* Re: [OSL | CCIE_RS] SVI basic query > > thats what even i thought .. > > But say I have vlan 10 in vlan database and int vlan 10 .. no acess port > for vlan 10 , i have a trunk carrying vlan 10 .. as expected my interface > vlan 10 was UP and UP. > > Now if i remove vlan 10 from trunk ( switchport trunk allowed vlan except > 10 ) ; i still have my SVI in UP state. > > any light on this .. what i have deduced is that presence of vlan in vlan > database is only point to be kept in mind. > > Gaurav Madan. > 2008/2/20 Brian K Valentine <[EMAIL PROTECTED]>: > > > Hi, > > > > > > > > I'm new to the study list, but I believe I can contribute to this issue. > > > > > > > > My understanding is this… In order for the SVI for that VLAN to come "up > > and up", you need to have an interface on that local switch assigned to that > > VLAN. In other words, at least one of the ports must have that VLAN > > assigned to it as an access VLAN or at least one of the ports must be > > trunking that VLAN. This also implies that the VLAN exists in the local > > VLAN database. > > > > > > > > Brian > > > > > > > > *From:* [EMAIL PROTECTED] [mailto: > > [EMAIL PROTECTED] *On Behalf Of *GAURAV MADAN > > *Sent:* Wednesday, February 20, 2008 1:55 AM > > *To:* [email protected] > > *Subject:* [OSL | CCIE_RS] SVI basic query > > > > > > > > Hi All > > > > > > > > Just wanted to get clearification on something very basic . Under what > > circumstances do we have int vlan <> in down state ? > > > > > > > > I know that if we create " int vlan x " and vlan x do not exist in vlan > > database then there will be no spanning tree instance for this vlan and the > > int vlan x will be down .. Is there some other case also ; where int vlan x > > is down .. > > > > > > > > I note that only vlan presence is the criterai .. Even if i disable STP > > for this vlan .. i see interface in UP state . > > > > > > > > Thnx > > > > Gaurav Madan. > > > > > > > > No virus found in this incoming message. > > Checked by AVG Free Edition. > > Version: 7.5.516 / Virus Database: 269.20.8/1288 - Release Date: > > 2/19/2008 8:47 PM > > > > No virus found in this outgoing message. > > Checked by AVG Free Edition. > > Version: 7.5.516 / Virus Database: 269.20.8/1288 - Release Date: > > 2/19/2008 8:47 PM > > > >
