From: Dan C (cdan2154@gmail.com)
Date: Mon Apr 02 2007 - 23:08:39 ART
Ok Marut, let's clear this one.....
A. Normal network config.....
RIP: sending v2 update to 224.0.0.9 via FastEthernet0/1 -- Multicast
B. Just neigbor addedd to the mix
router rip
version 2
network 150.100.0.0
neighbor 150.100.1.254
no auto-summary
*Mar 1 18:28:08.275: RIP: sending v2 update to 150.100.1.254 via
FastEthernet0/1 (150.100.1.3) -- Unicast
C. Just with passive-interface default
router rip
version 2
passive-interface default
network 150.100.0.0
no auto-summary
R3(config-router)#
*Mar 1 18:38:03.227: RIP: received v2 update from 150.100.1.254 on
FastEthernet0/1 -- Getting routes but nothing sent out
D. Passive + Nei added to the mix
*Mar 1 18:41:41.008: RIP: sending v2 update to 150.100.1.254 via
FastEthernet0/1 (150.100.1.3) -- Unicast but no routes sent out
*Mar 1 18:41:41.008: RIP: build update entries
HTH Dan
On 4/3/07, Marut S@MS@DCTH-BKK <Marut.s@datacraft-asia.com> wrote:
>
> Do I understand it right ?
>
> Unicast only = passive-interface + neighbor
> Unicast + multicast = neighbor
> Multicast = No-need for additional
> configuration.
>
> Best Regards,
> Marut
>
> -----Original Message-----
> From: Ivan Kuchin [mailto:ivan@iip.net]
> Sent: Monday, 02 April, 2007 10:04 PM
> To: Marut S@MS@DCTH-BKK
> Cc: Dan C; Huang Laurence; Cisco certification
> Subject: Re: How to minimise RIP's update traffic on routers
>
> passive-int def - required
>
> On Monday 02 April 2007 18:42, Marut S@MS@DCTH-BKK wrote:
> > Hi Dan,
> >
> > I think nei -- will add ( but not change ) the update to be
> > unicast.
> >
> > Best Regards,
> > Marut Siriwangso
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> > Dan C
> > Sent: Tuesday, 20 March, 2007 6:35 PM
> > To: Huang Laurence
> > Cc: Ivan; Cisco certification
> > Subject: Re: How to minimise RIP's update traffic on routers
> >
> > Hi Laurence,
> >
> > Depends on which type of interfaces you are using. rip trigged works
> > only on
> > virtual template interface... You will need to set a rip domain and
> > check
> > debug ip rip using the options mentioned before....
> >
> > passive interface default --- the router will not send any updates on
> > that
> > link but it will still listen and accept routes in..
> > nei --- will change the update from multicast address into unicast
> > address
> > and so on...
> >
> > Also, there are few tricks on interface connected to the rip network
> > too....
> >
> > Cheers,
> > Dan
> >
> > On 3/20/07, Huang Laurence <huangyinxiao@gmail.com> wrote:
> > > Thanks Ivan.
> > >
> > > You make me more clear on these.
> > > If you configure below, it can reduce the updates. That's right.
> > >
> > > router rip
> > > pass def
> > > neig x.x.x.x
> > >
> > > But do I still need enable "rip trigged"? It can also help to minimise
> >
> > the
> >
> > > rip updates.
> > >
> > > Thanks again.
> > >
> > > Laurence
> > >
> > > On 20/03/07, Ivan <ivan@iip.net> wrote:
> > > > You can easily check this by debugging rip. You need to achieve
> > >
> > > consistncy
> > >
> > > > FIB
> > > > with less update packets (including Lo's)
> > > >
> > > > Pay attention on update to Loopback interfaces. Such as question
> >
> > state
> >
> > > > minimize update traffic on _ROUTER_
> > > >
> > > > router rip
> > > > pass def
> > > > neig x.x.x.x
> > > >
> > > > On Tuesday 20 March 2007 01:48, huangyinxiao@gmail.com wrote:
> > > > > Hi group,
> > > > >
> > > > > I confuse on the question that "how to minimise the RIP's update
> > >
> > > traffic
> > >
> > > > on
> > > >
> > > > > one of RIP routers(R2)?" when I am doing the lab execises. What
> >
> > does
> >
> > > > this
> > > >
> > > > > question real mean? I have four solutions described as following,
> >
> > and
> >
> > > I
> > >
> > > > > don't know which answers is correct.
> > > > >
> > > > > 1. passive interface need to be configured
> > > > > 2. rip trigged need to be configured
> > > > > 3. neighbor command to transfer to unicast
> > > > > 4. summary
> > > > >
> > > > > what answers can be meet the reqirement? Or anyother
> >
> > understandings
> >
> > > > about
> > > >
> > > > > the question?
> > > > >
> > > > > Thanks for your any reply!
> > > > >
> > > > > Regards,
> > > > >
> > > > > Laurence
> >
> > _______________________________________________________________________
> >
> > > > > Subscription information may be found at:
> > > > > http://www.groupstudy.com/list/CCIELab.html
> > > >
> > > > --
> > > > Ivan
> >
> > _______________________________________________________________________
> >
> > > 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
> >
> >
> >
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>
> --
> iWAN kU^IN (mail to: ivan@iip.net)
> NOC iip.net
> 137-31-04
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