Re: OSPF and ISIS in MPLS CORE ?

Traffic Engineer extensions. Both OSPF and ISIS are capable of adding
mechanisms to enhance the protocol. I forget what OSPF uses, but ISIS
uses TLV's for this feature.

For label distribution though, both OSPF and ISIS are link state
protocols so are able to pass bandwidth and link state information to
all other nodes in the network.

-Ryan

On Thu, Jul 9, 2009 at 10:00 AM, jack daniels<jckdaniels12_at_gmail.com> wrote:
> Hi,
>
> Thanks Ryan , but what special in OSPF and ISIS that RSVP-TE for label
> distribution requires OSPF or ISIS ?
>
> Regards
>
>
> On Thu, Jul 9, 2009 at 10:17 PM, Ryan <ryan95842_at_gmail.com> wrote:
>>
>> Depends on the LDP protocol. If your using LDP/TDM, then it doesn't
>> matter. But if your using RSVP-TE for label distribution, then you
>> must have OSPF or ISIS
>>
>>
>> -Ryan
>>
>>
>>
>>
>> On Thu, Jul 9, 2009 at 9:05 AM, jack daniels<jckdaniels12_at_gmail.com>
>> wrote:
>> > Hi All,
>> >
>> > We always see SP run in MPLS core OSPF or ISIS only why ?
>> >
>> > can we run EIGRP or any other protocol also.
>> >
>> > Thanks and Regards
>> >
>> >
>> > Blogs and organic groups at http://www.ccie.net
>> >
>> > _______________________________________________________________________
>> > Subscription information may be found at:
>> > http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Thu Jul 09 2009 - 10:05:05 ART