Re: OSPF Problem

hmm Thanks Hammer for ur valuable info

I m looking for some GREAT's response

On Tue, Jul 5, 2011 at 9:23 PM, -Hammer- <bhmccie_at_gmail.com> wrote:

> **
> There are certainly more qualified folks here that may speak up but I do
> not look at it as extending a non backbone link. I look at it as a method to
> enforce more preferred (the cloud) routing between PEs. I look at it more or
> less as a pvc or a tunnel between the PEs. I'm sure that's not the best way
> but it works for me to think thru it.
>
> -Hammer-
>
> "I was a normal American nerd"
> -Jack Herer
>
>
>
> On 07/05/2011 10:48 AM, Routing Freak wrote:
>
> Hey Hammer, Good one
>
> But stilll I hava a problem, Is sham link extending ur non backbone link to
> the backbone link ( ie ur Super Backbone)
>
>
> On Tue, Jul 5, 2011 at 9:12 PM, -Hammer- <bhmccie_at_gmail.com> wrote:
>
>> 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> 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
>>> >
>>> >
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Received on Tue Jul 05 2011 - 21:26:53 ART