Re: Cannot form LDP peer

From: Jerry Chan <temjin1997_at_gmail.com>
Date: Mon, 22 Jun 2009 17:33:49 +0800

Hi Joe,

Thanks for your reply.
as you say, i can make sure that there is no ACL or blocking between each
other.
howeve, i want to know that are there is any command that can directly form
LDP peer,
like ospf having a "nei x.x.x.x" command that can bypass hello packet?

thanks,
Jerry

2009/6/22 Joe Astorino <jastorino_at_ipexpert.com>

> OK, yeah I just noticed that as wellso it probably is using the .12
> address as the ID because it is lowerOK, well the only other thing I
really
> can think of is make sure you have no ACLs or anything (I believe LDP uses
> UDP)and maybe try it on real equipment, or perhaps somebody else can chime
> in here if they have done this successfully on GNS3. I mean, it is a
fairly
> straight forward thing like you said. I think this should work.
>
>
>
> Regards,
>
> Joe Astorino
> CCIE #24347 (R&S)
> Sr. Support Engineer  IPexpert, Inc.
> URL: http://www.IPexpert.com
>
>
> *From:* Jerry Chan [mailto:temjin1997_at_gmail.com]
> *Sent:* Monday, June 22, 2009 5:04 AM
> *To:* Joe Astorino
> *Subject:* Re: Cannot form LDP peer
>
>
>
> that is one of R1 ip address, and that is using to form a LDP peer with R2
> the topology like this
>
> R3 --------------------------------------- R1
> --------------------------------------- R2
> (serial 150.1.13.0/24) (eth 150.1.12.0/24)
>
> 2009/6/22 Joe Astorino <jastorino_at_ipexpert.com>
>
> Are you sure your IP addressing is correct? In the debugs it mentions
> 150.1.12.1 ???
>
> Regards,
>
> Joe Astorino
> CCIE #24347 (R&S)
> Sr. Support Engineer - IPexpert, Inc.
> URL: http://www.IPexpert.com
>
>
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Jerry Chan
> Sent: Monday, June 22, 2009 4:43 AM
> To: Cisco certification
> Subject: Cannot form LDP peer
>
> Hi all expert,
>
> *I am now studying the MPLS, start to do the LDP workbook. (using GNS3)
> however, it cannot form peer with a simple connection between R1--R3 using
> a
> serial link or frame-relay.*
>
> R1. config
> =======
> ip cef
> mpls label protocol ldp
> !
> interface Serial1/3
> ip address 150.1.13.1 255.255.255.0
> mpls ip
> !
>
> R3. config
> =======
> ip cef
> mpls label protocol ldp
> !
> interface Serial1/3
> ip address 150.1.13.3 255.255.255.0
> clock rate 64000
> mpls ip
> !
>
> *it can ping , can form ospf peer, but cannot form ldp peer. Am I do the
> wrong things?
> when i type debug mpls ldp tran even on both R1 and R3, it give me like
> these.*
>
> Rack10R1#
> *Jun 22 16:22:45.203: ldp: Rcvd ldp hello; Serial1/3, from 150.1.13.3 (
> 150.1.13.3:0), intf_id 0, opt 0xC
> *Jun 22 16:22:45.215: ldp: ldp Hello from 150.1.13.3 (150.1.13.3:0) to
> 224.0.0.2, opt 0xC
> *Jun 22 16:22:45.215: ldp: local idb = Serial1/3, holdtime = 15000, peer
> 150.1.13.3 holdtime = 15000
> *Jun 22 16:22:45.219: ldp: Link intvl min cnt = 2, intvl = 5000, idb =
> Serial1/3
> *Jun 22 16:22:45.831: ldp: Send ldp hello; Serial1/3, src/dst
> 150.1.13.1/224.0.0.2, inst_id 0
>
> Rack10R3#
> *Jun 22 16:19:38.887: ldp: Ignore rcvd dir hello to 150.1.13.3 from
> 150.1.12.1, Serial1/3; no dhcb
> *Jun 22 16:19:39.519: ldp: Rcvd ldp hello; Serial1/3, from 150.1.13.1 (
> 150.1.12.1:0), intf_id 0, opt 0xC
> *Jun 22 16:19:39.523: ldp: Send ldp hello; Serial1/3, src/dst
> 150.1.13.3/224.0.0.2, inst_id 0
> *Jun 22 16:19:39.527: ldp: ldp Hello from 150.1.13.1 (150.1.12.1:0) to
> 224.0.0.2, opt 0xC
> *Jun 22 16:19:39.531: ldp: local idb = Serial1/3, holdtime = 15000, peer
> 150.1.13.1 holdtime = 15000
> *Jun 22 16:19:39.531: ldp: Link intvl min cnt = 2, intvl = 5000, idb =
> Serial1/3
> *Jun 22 16:19:39.535: ldp: Opening ldp conn; adj 0x6771C238, 150.1.13.3 <->
> 150.1.12.1; with normal priority
>
> *please kinldy to give me some hits.
>
> Thanks
> *Jerry
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>
>
> Checked by AVG - www.avg.com
> Version: 8.5.374 / Virus Database: 270.12.81/2189 - Release Date: 06/21/09
> 05:53:00
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>
>
> Checked by AVG - www.avg.com
> Version: 8.5.374 / Virus Database: 270.12.81/2189 - Release Date: 06/21/09
> 05:53:00

Blogs and organic groups at http://www.ccie.net
Received on Mon Jun 22 2009 - 17:33:49 ART

This archive was generated by hypermail 2.2.0 : Wed Jul 01 2009 - 20:02:37 ART