I asked this question a few weeks ago regarding simplified VRRP.  Apparently,
there is a bug going back to even ipso 3.7.1 and even in IPSO 4.2.  Here is
a summary:

create simplified vrrp
-add a new ip to an interface (without defining a vlan)
-add a virtual ip for that ip address to vrrp 
-at this point, ifconfig -a will display both VIPs for that interface
-remove the second VIP from vrrp
-delete the new ip address from the interface
-now if you do ifconfig -a, there is no vrrp  IP and mac listed for that 
interface at
all

I tested this with IP260, and was able to recreate it.  If I reboot, vrrp IP 
and mac 
did not come back, even though the VRRP IP and mac are in the /config/active
file .  Custoerm has an IP560, and he says that it does not come back.  He has 
to delete VRRP altogether and redo it.

This does not happen with legacy vrrp - I tested this on the IP260.

He is also concerned about the vrrp limitation described on p. 70 of release 
notes of 4.1 build 16, and p. 72 of build 19.  According to this, if VRRP is 
deleted in voyager and the changed is saved, VRRP reappears following a reboot. 
 This an be avoided by doing a 'save config' on command line.

I tried this with legacy vrrp and it does not happen.

Customer would like us to
-check if we expect it to happen with legacy vrrp
-confirm that it happens with simlified VRRP

He also would like to know if there are any other issues with simplified VRRP 
in 4.1 build 16 and 19, other than those described in the release notes.

Here is the latest update from Nokia:

The reported issue in this case was replicated in my lab.  PR58304 is rasied, 
the developer will look at the issue and advise the next steps.
Thanks,

David Wong 

So to give everyone an update, it is a bug.  If you decide to use simplified 
VRRP, be careful with it.  Legacy VRRP, as Gary Scott mentioned from his
previous posts, is much more stable than simplified VRRP.  I always knew that
simplified vrrp is just too good to be true.  Now, I learned it the hard way.

cisco4ng

 
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