It looks like on page 433, he's describing a situation where the network
does not have any broadcast capabilities. Broadcast networks are able to
utilize the multicast feature(224.0.0.5) to send hello packets while NBMA
and point to multipoint will utilize unicast hello packets because they have
Jim,
point-to-multipoint can be both broadcast and non-broadcast.
In case it is configured as broadcast (default when you
configure 'ip ospf network point-to-multipoint), it will
treat interface as collection of point-to-point links and will
use multicast, just as on point-to-point link. If it is
The book did not make it clear but both are right.
1. If your use "point-to-multipoint" command on interface, the routing
packets will be send using multicast packet.
2. If you use "point-to-multipoint non-broadcast" command on interface, you
need "neighbor" under "router ospf" and the routing pa
I posted similar question about three/four weeks ago. Got some answers but
still have doubt. Hope someone can shed some light on this question.
Section 9.5. of RFC 2328 :
Quote
On broadcast networks and physical point-to-point networks, Hello packets
are sent every HelloInterval seconds to the IP
I guess the best way is to set up some routers in each environment and look
at some debugs.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Alex Lee
Sent: Monday, October 22, 2001 7:07 AM
To: [EMAIL PROTECTED]
Subject: Re: ospf point-to-multipoint [7
Can you shed some light on what debug commands which could tell us whether
the packets are unicasted or multicast ?
""adam lee"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> I guess the best way is to set up some routers in each environment and
look
> at some debugs.
Mess
debug ip packet
>>> "Alex Lee" 10/22/01 12:18:50 PM >>>
Can you shed some light on what debug commands which could tell us
whether
the packets are unicasted or multicast ?
""adam lee"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> I guess the best way is to set up some route
Following the spec it should be unicast. Keep in mind that
non-broadcast networks (point-to-multipoint) don't support
multicasting, that's why you have to manually configure your
neighbors. As far as whether broadcast networks that are set
to point-to-multipoint via the Cisco command use unica
In a point to multipoint OSPF network configuration the links are treated as
point to point and you do not need neighbor statements.
--
-=Repy to group only... no personal=-
""Curtis Call"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Following the spec it should be unicast.
I did a test in my home lab with three routers. Two configured as OSPF
routers, the third one as frame-relay switch.
In every test I booted up the two OSPF routers, entered two debug commands
( debug ip packet detail, debug ip ospf adj) then booted up the frame-relay
switch to obtain the debug o
I'm thinking of Juniper's configuration which always requires
the neighbor command. Looks like prior to 12.1 Cisco didn't
require the neighbor command, but 12.1 and beyond they do require
it when using true non-broadcast point-to-multipoint mode.
"Dennis" wrote:
> In a point to multipoint
11 matches
Mail list logo
