From: Chris Lewis (chrlewiscsco@yahoo.com)
Date: Tue Oct 25 2005 - 15:39:36 GMT-3
Kevin,
I don't have much to say other than it is messy and the behavior you report is the coded behavior :)
Chris
kevin gannon <kevin@gannons.net> wrote:
Another difference I noted when testing this is that VRRP
does *not* disable redirects being sent thought this
was a bug but the RFC says this is the norm !.
Also double checked this is not like the newly enhanced
HSRP redirect support. In that the redirect is to a router
not running VRRP. While for HSRP it learns about
other HSRP groups and will rewrite the a redirect to
send the redirect to the other routers virtual IP.
Regards
Kevin
On 10/25/05, kevin gannon wrote:
> Its possible if not very elegant look at the config below:
>
> #####R3#######################
> interface FastEthernet0/0
> ip address 34.34.34.100 255.255.255.0
> duplex auto
> speed auto
> vrrp 1 ip 34.34.34.100
> end
>
> #####R4######################
> interface FastEthernet0/0
> ip address 34.34.34.4 255.255.255.0
> duplex auto
> speed auto
> vrrp 1 ip 34.34.34.100
> vrrp 1 priority 90
> end
>
> Its a bit messy as when R3 is the master the arp response for
> 34.34.34.100(virtual) is the physical address of R3. When R4 takes
> over its uses the more normal virtual MAC address. So you are depening
> on gratious ARP. Chris maybe you can comment if this is expected
> behaviour for 12.2.15T14 , I would not have that it was from my reading
> of the RFC ?
>
> I tested it and it seems to failover quicker if you add the following config
> to R3
>
> mac-address 0000.5e00.0101
>
> Regards
> Kevin
>
>
> On 10/24/05, Niche wrote:
> > Hi guys,
> >
> > Just want to ask for further information..
> >
> > How to make VRRP to only use 2 ip addresses only instead of standard 3 ip
> > addresses format?
> >
> > I have checked the 12.2(13)T documentation about VRRP, I couldn't find any
> > configuration example for reference on this.
> >
> > Cheers~
> > Jacky
> >
> > On 10/24/05, Thomwin Chen wrote:
> > >
> > > A Not So Elegant way is to type vrrp 1 syntax on the interface.
> > > if you can't type vrrp 1, perhaps the solution prefer HSRP. :)
> > >
> > > just a thought...
> > >
> > > Rgds,
> > > Thomwin
> > >
> > > Chris Lewis wrote:
> > > Hi,
> > >
> > > Just looking for opinions and input.
> > >
> > > Comparing HSRP and VRRP, I conclude:
> > >
> > > VRRP has preempt on by default, therefore does not need it configured like
> > > HSRP does.
> > > HSRP can use enhanced object tracking
> > > (to track more than just line protocol up/down as follows)
> > > track 100 interface serial1/0 ip routing
> > > interface Ethernet0/0
> > > standby 1 track 100 decrement 10
> > > I do not see a command option for VRRP to use track, even though the
> > > enhanced object tracking documentation suggets there is. So I conclude VRRP
> > > cannot track the status of one of its interfaces like HSRP can.
> > > To load balance between routers, HSRP and VRRP can have different groups
> > > to prefer different routers, but anything more sophisticated required GLBP
> > > Any comments or other differentiators?
> > >
> > > Chris
> > >
> > >
> > >
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