Re: OSPF virtual-link-

Even though the Cisco documentation is generally good , when it comes to
base protocol operation, it's better to look at the RFC for the protocol,
http://www.ietf.org/rfc/rfc2328.txt

Section 15 second paragraph

    The virtual link is treated as if it were an unnumbered point-to-
    point network belonging to the backbone and joining the two area
    border routers. An attempt is made to establish an adjacency over
    the virtual link. When this adjacency is established, the virtual
    link will be included in backbone router-LSAs, and OSPF packets
    pertaining to the backbone area will flow over the adjacency

virtual-links are configured on a router with the peer being the router-id,
which is not necessarily an active IP address

On Fri, Oct 5, 2012 at 9:16 AM, oo IPX <oispxl_at_gmail.com> wrote:

> Hello,
>
> how the ospf peering comes up over a virtual link even when the source ip
> address of the uni-cast hello are not on the same subnet ?
>
> Thanks.
>
>
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Received on Fri Oct 05 2012 - 09:52:20 ART