Re: OSPF Problem

Dude I didn't mean to simplify it. You were asking for the difference
and I thought a clearer explanation might have helped. I don't look at
these as being in the same realm and that's why maybe I am missing where
you are confused. Yes, V-Links are an "extension" of area 0. Whereas
sham links are used to "bridge" together multiple PEs in the same MPLS
VPN backbone. The sham link gets you past the default OSPF rules for
selecting intra-area routes instead of inter-area. The sham link also
allows the sites to communicate over the MPLS VPN instead of via any
external paths not provided via the cloud. Does that help?

-Hammer-

"I was a normal American nerd"
-Jack Herer

On 07/05/2011 10:33 AM, Routing Freak wrote:
> Dude i know how to configure ospf sham link . I need to know about the
> difference technically speaking differences
>
> Share some theory behind both, What r the similarities and what r the
> differences?
>
>
> On Tue, Jul 5, 2011 at 8:55 PM, -Hammer- <bhmccie_at_gmail.com
> <mailto:bhmccie_at_gmail.com>> wrote:
>
> This helped me understand sham links better a while back....
>
> http://blog.ipexpert.com/2010/01/20/introduction-to-ospf-sham-link/
>
> -Hammer-
>
> "I was a normal American nerd"
> -Jack Herer
>
>
>
> On 07/05/2011 10:17 AM, Routing Freak wrote:
> > Hey mates,
> > I have a little confusion. What is the difference between Sham
> link and
> > Virtual Link?
> >
> > I know that Virtual Link is to extend ur backbone
> > Sham link is used as a false link between two PE's . Is it
> extending ur
> > Area to other area and fool them that they r in the same area??
> >
> > Because Sham link mainly used as a virtual cable which sends
> Intra area
> > LSA's ( which is the Type 1 LSA's) to other PE .
> >
> > What does exactly the difference betwen Virtual links and Sham links
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
> >
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Received on Tue Jul 05 2011 - 10:42:39 ART