Re: Cannot form LDP peer

Hi Ernest,

thanks for your reply,
i cannot see anything on R3 when i type "sh mpls ldp nei"
and i only can see the peer on R1 with R2.

Thanks,
Jerry Chan

2009/6/22 Ernest Wambari <ewambari_at_gmail.com>

> Hi Jerry,
>
> Check your mpls ldp router-ids.
>
> Use the "sh mpls ldp nei" to see if R1 and R3 are peering via the expected
> interfaces.
>
> As Joe mentioned,looks like they are not.
>
> Regards,
>
> W.
>
> On Mon, Jun 22, 2009 at 6:42 PM, Jerry Chan <temjin1997_at_gmail.com> wrote:
>
>> 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
>>
>>
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Received on Mon Jun 22 2009 - 17:30:39 ART