From: xprtofnet (xprtofnet@yahoo.com)
Date: Tue Aug 29 2006 - 19:09:38 ART
check this out...it says LOWER # is preffered:
Examples
The following example sets the various IRDP processes:
!Enable irdp on interface Ethernet 0.
interface ethernet 0
ip irdp
!Send IRDP advertisements to the multicast address.
ip irdp multicast
!Increase router preference from 100 to 50.<<<<<<
ip irdp preference 50
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hiap_r/apl_i1h.htm#wp1202593
--- sabrina pittarel <sabri_esame@yahoo.com> wrote:
> Accondig to Cisco documentation an higher number is
> preferred.
>
>
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipras_r/1rfipadr.htm#wp1018753
>
>
> (Optional) Preference value. The allowed range is
> -231 to 231. The default is 0. A higher value
> increases the preference level of the router. You
> can modify a particular router so that it will be
> the preferred router to which other routers will
> home.
>
> Maybe they fixed it.
>
> Sabrina
>
> ----- Original Message ----
> From: Sean C <Upp_and_Upp@hotmail.com>
> To: sabrina pittarel <sabri_esame@yahoo.com>
> Cc: ccielab@groupstudy.com
> Sent: Monday, August 28, 2006 5:55:54 AM
> Subject: Re: IRDP
>
> Hi Sabrina,
>
> To follow up on Dave's post - check out some stuff I
> wrote on this before:
>
http://www.groupstudy.com/archives/ccielab/200411/msg00047.html
>
> But watchout, as Dave mentioned in a separate email,
> for the router I used
> as a client, the irdp preference was flipped.
> Sean
> ----- Original Message -----
> From: "Schulz, Dave" <DSchulz@dpsciences.com>
> To: "sabrina pittarel" <sabri_esame@yahoo.com>
> Cc: <ccielab@groupstudy.com>
> Sent: Sunday, August 27, 2006 11:43 PM
> Subject: RE: IRDP
>
>
> > That would be the way to do that, by specifying
> the irdp on both
> > redundant interfaces and using the preference to
> add priority. It works
> > great. Lab it up with a router set up as a client
> (no ip routing).
> > Don't forget to specify "ip gdp irdp" on this
> router/ws. HTH.
> >
> >
> > Dave Schulz,
> > Email: dschulz@dpsciences.com
> >
> >
> >
> > -----Original Message-----
> > From: sabrina pittarel
> [mailto:sabri_esame@yahoo.com]
> > Sent: Sunday, August 27, 2006 11:23 PM
> > To: Schulz, Dave
> > Subject: Re: IRDP
> >
> > Oh,
> > I didn't pay attention you can even specify an IP
> address...that's cool
> > so that you can easily support a mixed environment
> with hosts that have
> > their default gateway statically assigned, and
> hence require
> > HSRP/VRRP/GLBP for redundancy, and hosts that can
> learn it dynamically.
> > I'm assuming in this case the advertised address
> should be the virtual
> > address on both routers.
> >
> > Unfortunately I see there is no way to bind the
> generation of RDP
> > messages with the HSRP/VRRP state. That would have
> been even cooler, so
> > that only the Active router would have generated
> these messages, as it
> > is hosts receive these periodic messages twice
> (one from each router).
> > I wonder if that can create an issue since the
> host may receive another
> > advertisement before the minadvertinterval has
> elapsed (it'll receive it
> > from the other router but I won't be able to
> realize that).
> >
> > Sabrina
> >
> >
> >
> > ----- Original Message ----
> > From: "Schulz, Dave" <DSchulz@dpsciences.com>
> > To: sabrina pittarel <sabri_esame@yahoo.com>
> > Cc: ccielab@groupstudy.com
> > Sent: Sunday, August 27, 2006 6:12:22 PM
> > Subject: RE: IRDP
> >
> > Sabrina -
> >
> > That should be enough to configure it. However,
> it is probably best to
> > change the max and min advertisement interval so
> you can get the
> > advertisement to send out quicker than the default
> which is fairly long.
> > One other point, you probably want to advertise a
> preference....an
> > interface preference for your router, or, and ip
> address (if running
> > HSRP/VRRP/GLBP)....
> >
> > - ip irdp preference <preference number>
> > - ip irdp ip address x.x.x.x <preference number>
> >
> > According to the documentation, the lower number
> is more preferred.
> > However, when using this with some IOS
> routers....this is reversed for
> > some odd reason.
> >
> > HTH,
> >
> >
> > Dave Schulz,
> > Email: dschulz@dpsciences.com
> >
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com] On Behalf Of
> > sabrina pittarel
> > Sent: Sunday, August 27, 2006 6:31 PM
> > To: ccielab@groupstudy.com
> > Subject: IRDP
> >
> > Hi,
> > I'm trying to learn how to configure IRDP.
> > According to Cisco documentation I only need to
> cfg :
> >
> > ip irdp
> >
> > in interface cfg mode.
> > Is that enough? Do I need to configure any of the
> following?
> >
> > holdtime how long a receiver should
> believe the information
> > maxadvertinterval maximum time between
> advertisements
> > minadvertinterval minimum time between
> advertisements
> >
> > Sabrina
> >
> >
>
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