Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email email@example.com
From: Michael Yeung (micyeung1YAHOO.COM)
Date: Tue Jun 05 2001 - 14:24:22 CDT
Sina, thanx for your suggestion. With P2P
interface, can you have more than one neighbor? This
means there will be 3 routers in the network. I did
say the network will ever have most 2 routers, but I
want to make sure there is a backup plan to support
additional routers without reconfiguring both existing
routers. From RFC2328, I could not find restriction
that P2P interface can only have at most 1 neighbor.
> you will carry extra /32 routes by configuring p2p
Where does the extra 32 routes with P2P
configuration come from?
It seems obvious to me to use "broadcast" interface
type for Ethernet medium. But if I know the network
will ever going to have only 2 and some at most 3
routers. I'm not sure if broadcast is the way to go
versus P2P. Is there other benefits (other than
DR/BDR, type 2 LSA elimination) for using P2P type
versus broadcast in a confined broadcast network?
thanx in advance,
--- Sina Mirtorabi <sinaCISCO.COM> wrote:
> Michael Yeung wrote:
> > Hi all,
> > The following is quoted from RFC2328:
> > "Each broadcast and NBMA network that has at least
> > attached routers has a Designated Router"
> This is because if only one router is attached to a
> multi-acess netwrok
> ( broadcast or NBMA ) the netwrok is considered as
> stub and you won't
> have DR / BDR
> on the other hand 2 router never know in advance
> how many routers will
> be joining the netwrok so as soon as you have 2
> router we run the DR /
> BDR election
> > I was wonder if it is worth the trouble of using
> > and BDR in a broadcast environment where there
> > ever only be 2 possible routers.
> > Given the RFC does not impose restriction on
> > "broadcast" type for broadcast medium. I can
> > configure the interface as "point-to-multipoint"
> > Does anyone see a problem of doing this
> > there are only 2 possible routers therefore
> > traffic should not be an implication)?
> > Personally I see benefit of using
> > point-to-multipoint configuration if the network
> > only ever going to deal with 2 routers. Just
> > the process of DR and BDR election is eliminated
> > the process of database synchronization with DR is
> > eliminated.
> > Please give you your opinion and insight.
> why you want to use point-to-multipoint for only 2
> routers and not
> point-2-point, you will carry extra /32 routes
> by configuring p2p your database size will be
> reduced as there would be
> no type 2 LSA and no DR/BDR election
> > thanx in advance,
> > Michael
> > __________________________________________________
> > Do You Yahoo!?
> > Get personalized email addresses from Yahoo! Mail
> - only $35
> > a year! http://personal.mail.yahoo.com/
Do You Yahoo!?
Get personalized email addresses from Yahoo! Mail - only $35
a year! http://personal.mail.yahoo.com/