Hello, 1) Decrementing priority is not something that happens by itself. This is something you would configure by linking to a tracker. 2) Correct 3) Trackers can track weather your link is up/down among other things yes. If you do not use a tracker and you unplug the cable of the master router on the segment, an election will take place to elect a new master 4) VRRP can use either/or. If you configure the VRRP address to be the same as a physical address, the router with that address will become the master 5) If both are the master, sometimes you have an issue with the multicast hello's on your segment. Check ACLs and other filtering mechanisms...they are not hearing each other more than likely
Also, I would recommend you check out the VRRP configuration guide on the DocCD. On Mon, Mar 29, 2010 at 10:47 AM, Uli <[email protected]> wrote: > Hi Expert, > > I just want to make sure that I understand about VRRP > > 1. when the master down it will decrement by 15, right ? so if I set > up the master priority to 255 and left the slave as default, even when > master down the slave won't become the master ? > > 2. if I set up both switches into default priority, the switches will > thencompare the highest ip address to decide who is the master and > slave, right ? > > 3. tracking command is for track when the link goes down. Thus, if I > don't put the tracking command on master and when I unplug the cable > it will still remain as master, isn't ? as the master switches still > up. > > 4. vrrp only use existing ip address on interfaces and not the virtual > ip like hsrp. > > > also I found in my customer site both switches are master, what make > this thing happen ? > > Thanks > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > -- Regards, Joe Astorino - CCIE #24347 Sr. Technical Instructor - IPexpert Mailto: [email protected] Telephone: +1.810.326.1444 Live Assistance, Please visit: www.ipexpert.com/chat eFax: +1.810.454.0130 IPexpert is a premier provider of Self-Study Workbooks, Video on Demand, Audio Tools, Online Hardware Rental and Classroom Training for the Cisco CCIE (R&S, Voice, Security & Service Provider) certification(s) with training locations throughout the United States, Europe, South Asia and Australia. Be sure to visit our online communities at www.ipexpert.com/communities and our public website at www.ipexpert.com _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
