Re: VLAN with no active ports

From: Peter Kingston (kingstonp.ccie@gmail.com)
Date: Mon Aug 27 2007 - 00:39:02 ART


You have the option of stopping alarms on that SVI going up and down.

no snmp trap link-status

could be worth implementing.

-- 
Regards,

Peter Kingston Studying my CCIE

On 8/24/07, Travis Anderson <totaldrive2000@yahoo.com> wrote: > > Yeah, mostly monitoring. With a lot of false alarms > from network management a real problem like a > duplicate IP address, code bug, or other unknown > wouldn't get found quickly. I guess they could ask it > on the lab test but I wouldn't expect it. That would > make a decent question for 2 points, combine it with > allowing certain VLANs. > > Travis, > > --- Eagle <ddycus@gmail.com> wrote: > > > I don't see why it would make any difference in this > > case, really... seems > > like you're only worried for monitoring's sake. If > > you don't have either a > > trunk port with this VLAN in up/up state, or an > > access port up/up - the SVI > > interface is going to go down. > > > > On 8/23/07, Travis Anderson > > <totaldrive2000@yahoo.com> wrote: > > > > > > A lone switch and all the ports in the VLAN are > > down, > > > if the VLAN is only for users and they all go home > > for > > > the night. Syslog messages can be shut off with > > "no > > > logging.." and traps can be shut off with "no snmp > > > event..." but the interface still goes down and > > > network management polling reports an error and > > the IP > > > on the VLAN isn't active. The SVI IP address > > doesn't > > > have to be management my network management but it > > > seems pointless for the SVI to go up and down like > > a > > > yo-yo. > > > > > > Is there a way to keep the VLAN active even though > > > there are no ports in the VLAN (1 switch)? > > > > > > Travis, > > > > > > > > > > > > > > > > > > --- Scott Morris <swm@emanon.com> wrote: > > > > > > > A trunk carrying the VLAN counts as an active > > port. > > > > > > > > -----Original Message----- > > > > From: nobody@groupstudy.com > > > > [mailto:nobody@groupstudy.com] On Behalf Of > > > > Eagle > > > > Sent: Thursday, August 23, 2007 5:14 PM > > > > To: Travis Anderson > > > > Cc: ccielab@groupstudy.com > > > > Subject: Re: VLAN with no active ports > > > > > > > > > > > > > > > > > > http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/1 > > > > 2.1_19_ea1/configuration/guide/swint.html > > > > > > > > "When you create an SVI, it does not become > > active > > > > until it is associated > > > > with a physical port." > > > > > > > > On 8/23/07, Travis Anderson > > > > <totaldrive2000@yahoo.com> wrote: > > > > > > > > > > Is there a command to keep a SVI interface > > active > > > > with no active > > > > > ports? > > > > > > > > > > Travis, > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ______________________________________________________________________ > > > > > ______________ Park yourself in front of a > > world > > > > of choices in > > > > > alternative vehicles. > > > > > Visit the Yahoo! Auto Green Center. > > > > > http://autos.yahoo.com/green_center/ > > > > > > > > > > > > > > > > > > > > ______________________________________________________________________ > > > > > _ Subscription information may be found at: > > > > > http://www.groupstudy.com/list/CCIELab.html > > > > > > > > > > > > > > _______________________________________________________________________ > > > > Subscription information may be found at: > > > > http://www.groupstudy.com/list/CCIELab.html > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ____________________________________________________________________________________ > > > Need a vacation? Get great deals > > > to amazing places on Yahoo! Travel. > > > http://travel.yahoo.com/ > > > > > > > > > > > ____________________________________________________________________________________ > Yahoo! oneSearch: Finally, mobile search > that gives answers, not web links. > http://mobile.yahoo.com/mobileweb/onesearch?refer=1ONXIC > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html



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