Hi Iwan,
this is what happens :
PE1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
PE1(config)#mpls ldp router-id loopback 0
PE1(config)#mpls label protocol ldp
PE1(config)#
PE1#
PE2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
PE2(config)#mpls ldp router-id loopback 0
PE2(config)#mpls label protocol ldp
PE2(config)#
PE3#conf t
Enter configuration commands, one per line. End with CNTL/Z.
PE3(config)#mpls ldp router-id loopback 0
PE3(config)#mpls label protocol ldp
PE3(config)#
PE4#conf t
Enter configuration commands, one per line. End with CNTL/Z.
PE4(config)#mpls ldp router-id loopback 0
PE4(config)#mpls label protocol ldp
PE4(config)#
PE4#sh mpls forwardi
E4#clear mpls ldp neighbor *
PE4#
*Oct 12 19:53:32.979: %LDP-5-CLEAR_NBRS: Clear LDP neighbors (*) by
console
*Oct 12 19:53:32.979: %LDP-5-NBRCHG: LDP Neighbor 3.3.3.3:0 (2) is
DOWN (User cleared session manually)
*Oct 12 19:53:32.979: %LDP-5-NBRCHG: LDP Neighbor 1.1.1.1:0 (1) is
DOWN (User cleared session manually)
*Oct 12 19:53:35.151: %LDP-5-NBRCHG: LDP Neighbor 3.3.3.3:0 (3) is UP
*Oct 12 19:53:38.087: %LDP-5-NBRCHG: LDP Neighbor 1.1.1.1:0 (4) is UP
PE4#sh mpls forwarding-table
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or VC or Tunnel Id Switched interface
16 No Label 3.3.3.3/32 23939 Fa3/0
172.16.34.3
17 No Label 2.2.2.2/32 0 Fa1/0
172.16.14.1
No Label 2.2.2.2/32 0 Fa3/0
172.16.34.3
18 No Label 1.1.1.1/32 0 Fa1/0
172.16.14.1
19 No Label 172.16.24.0/24 0 Fa1/0
172.16.14.1
No Label 172.16.24.0/24 0 Fa3/0
172.16.34.3
20 No Label 172.16.13.0/24 0 Fa3/0
172.16.34.3
21 No Label 172.16.12.0/24 0 Fa1/0
172.16.14.1
22 No Label 172.16.23.0/24 0 Fa3/0
172.16.34.3
23 No Label 192.168.2.0/24 0 Fa1/0
172.16.14.1
No Label 192.168.2.0/24 0 Fa3/0
172.16.34.3
PE4#
On 12/10/2009, at 20:30 , Iwan Hoogendoorn wrote:
> Hi Marcel,
>
> Can you please add the folowing commands to your PE's:
>
> mpls ldp router-id loopback 0
> mpls label protocol ldp
>
> Please tell me what happens...
>
> --
> Regards,
>
> Iwan Hoogendoorn
> CCIE #13084 (R&S / Security / SP)
> Sr. Support Engineer IPexpert, Inc.
> URL: http://www.IPexpert.com
>
>
>
> On Sun, Oct 11, 2009 at 1:14 PM, Marcel Lammerse
> <m.lammerse_at_mac.com> wrote:
>> Configs and diagram attached. Unfortunately I can't draw ascii
>> diagrams..
>>
>>
>>
>>
>>
>>
>> On 11/10/2009, at 20:48 , Rick Mur wrote:
>>
>>> Indeed, please post configs and a small overview of your setup.
>>> Have you tried clearing the LDP neighbor sessions, doing a 'clear
>>> ip route
>>> *' or even reloading all the involved routers?
>>> LDP sometimes has this strange thing of not working 100% in IOS.
>>>
>>>
>>>
>>> --
>>>
>>> Regards,
>>>
>>> Rick Mur
>>> CCIE2 #21946 (R&S / Service Provider)
>>> Sr. Support Engineer IPexpert, Inc.
>>> URL: http://www.IPexpert.com
>>>
>>> On 11 okt 2009, at 11:34, Iwan Hoogendoorn wrote:
>>>
>>>> Hi,
>>>>
>>>> I would also like to see the config and the topo.
>>>>
>>>> Thanks,
>>>>
>>>>
>>>>
>>>> --
>>>> Regards,
>>>>
>>>> Iwan Hoogendoorn
>>>> CCIE #13084 (R&S / Security / SP)
>>>> Sr. Support Engineer IPexpert, Inc.
>>>> URL: http://www.IPexpert.com
>>>>
>>>> On Thu, Oct 8, 2009 at 2:13 AM, Marcel Lammerse
>>>> <m.lammerse_at_mac.com>
>>>> wrote:
>>>>>
>>>>> Experts,
>>>>>
>>>>> here I have a load-balanced path between directly connected ldp
>>>>> speakers
>>>>> :
>>>>>
>>>>> PE4#sh mpls forwarding-table 192.168.2.0
>>>>> Local Outgoing Prefix Bytes Label Outgoing
>>>>> Next Hop
>>>>> Label Label or VC or Tunnel Id Switched interface
>>>>> 22 25 192.168.2.0/24 0 Fa1/0
>>>>> 172.16.14.1
>>>>> 23 192.168.2.0/24 0 Fa3/0
>>>>> 172.16.34.3
>>>>> PE4#
>>>>>
>>>>> PE4#sh mpls ldp bindings 192.168.2.0 24 detail
>>>>> lib entry: 192.168.2.0/24, rev 22, chkpt: none
>>>>> local binding: label: 22 (owner LDP)
>>>>> Advertised to:
>>>>> 1.1.1.1:0 3.3.3.3:0
>>>>> remote binding: lsr: 1.1.1.1:0, label: 25
>>>>> remote binding: lsr: 3.3.3.3:0, label: 23
>>>>> route information: state: none, table: default,
>>>>> next-hop: 172.16.14.1, remote label: 25
>>>>> route information: state: none, table: default,
>>>>> next-hop: 172.16.34.3, remote label: 23
>>>>>
>>>>> If I change the ldp sessions to t-ldp, and keep everything else
>>>>> the
>>>>> same, the labels seem to disappear and traffic appears to go out
>>>>> untagged :
>>>>>
>>>>> PE4#sh mpls forwarding-table 192.168.2.0
>>>>> Local Outgoing Prefix Bytes Label Outgoing
>>>>> Next Hop
>>>>> Label Label or VC or Tunnel Id Switched interface
>>>>> 22 No Label 192.168.2.0/24 0 Fa1/0
>>>>> 172.16.14.1
>>>>> No Label 192.168.2.0/24 0 Fa3/0
>>>>> 172.16.34.3
>>>>> PE4#
>>>>>
>>>>> PE4#sh mpls ldp bindings 192.168.2.0 24 detail
>>>>> lib entry: 192.168.2.0/24, rev 22, chkpt: none
>>>>> local binding: label: 22 (owner LDP)
>>>>> Advertised to:
>>>>> 3.3.3.3:0 1.1.1.1:0
>>>>> remote binding: lsr: 3.3.3.3:0, label: 23
>>>>> remote binding: lsr: 1.1.1.1:0, label: 25
>>>>> route information: state: none, table: default,
>>>>> next-hop: 172.16.14.1, remote label: <----- no label
>>>>> route information: state: none, table: default,
>>>>> next-hop: 172.16.34.3, remote label: <----- no label
>>>>> PE4#
>>>>>
>>>>> I'm a bit confused by this. I would have expected the traffic to
>>>>> continue to be labeled and the labels to remain the same.
>>>>>
>>>>> Can anyone shed some light on why this happens?
>>>>>
>>>>> Thanks,
>>>>> Marcel
>>>>>
>>>>>
>>>>> Blogs and organic groups at http://www.ccie.net
>>>>>
>>>>> _______________________________________________________________________
>>>>> Subscription information may be found at:
>>>>> http://www.groupstudy.com/list/CCIELab.html
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Regards,
>>>>
>>>> Iwan Hoogendoorn
>>>> CCIE #13084 (R&S / Security / SP)
>>>> Sr. Support Engineer IPexpert, Inc.
>>>> URL: http://www.IPexpert.com
>>>>
>>>>
>>>> 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
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
Blogs and organic groups at http://www.ccie.net
Received on Mon Oct 12 2009 - 20:44:24 ART
This archive was generated by hypermail 2.2.0 : Sun Nov 01 2009 - 07:50:59 ART