[c-nsp] VFI LDP transport signaled down (ME3600x)
adam vitkovsky
adam.vitkovsky at swan.sk
Thu May 10 11:19:08 EDT 2012
I was just thinking that maybe with the manual config one side gets selected
as the session initiator while with bgp it's the other way around resulting
in the fail -if indeed only one side is configured to accept the targeted
sessions (but now that I think about it I guess it works the way the both
ends initiate the session and than the session with lower id gets thorn
down)
And what does the debug says about the session not coming up please?
adam
-----Original Message-----
From: Ihsan Junaidi Ibrahim [mailto:ihsan.junaidi at gmail.com]
Sent: Thursday, May 10, 2012 4:40 PM
To: adam vitkovsky
Cc: 'Pete Lumbis'; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] VFI LDP transport signaled down (ME3600x)
Adam,
That's what I initially thought but an EoMPLS or a manual VPLS work just
fine. Sample of EoMPLS,
es-103-glsfb#sh mpls l2transport vc 5070 detail Local interface: Gi0/19 up,
line protocol up, Ethernet:1 up
Destination address: 200.28.0.120, VC ID: 5070, VC status: up
Output interface: Te0/2, imposed label stack {298 16}
Preferred path: not configured
Default path: active
Next hop: 200.28.2.242
Create time: 1d02h, last status change time: 00:03:17
Signaling protocol: LDP, peer 200.28.0.120:0 up
Targeted Hello: 200.28.0.15(LDP Id) -> 200.28.0.120, LDP is UP
Status TLV support (local/remote) : enabled/supported
LDP route watch : disabled
Label/status state machine : established, LruRru
Last local dataplane status rcvd: No fault
Last BFD dataplane status rcvd: Not sent
Last BFD peer monitor status rcvd: No fault
Last local AC circuit status rcvd: No fault
Last local AC circuit status sent: No fault
Last local LDP TLV status sent: No fault
Last remote LDP TLV status rcvd: No fault
Last remote LDP ADJ status rcvd: No fault
MPLS VC labels: local 17, remote 16
Group ID: local 0, remote 0
MTU: local 9178, remote 9178
Remote interface description:
Sequencing: receive disabled, send disabled
Control Word: On (configured: autosense)
Dataplane:
SSM segment/switch IDs: 45083/8194 (used), PWID: 2
VC statistics:
transit packet totals: receive 1374, send 1374
transit byte totals: receive 118164, send 87936
transit packet drops: receive 0, seq error 0, send 0
Debugging did not turn up a whole lot of useful info that can be used to
narrow down the problem.
Resetting the LDP neighbours to a clean state the proceeding logs only logs
the EoMPLS targeted LDP session for VC 5070 (the above) but no information
at all for VC 116 which is part of the VFI attached circuit.
ihsan
On May 10, 2012, at 9:42 PM, adam vitkovsky wrote:
> It almost appears like one of the routers doesn't accept targeted
> sessions Can you please check whether both ends are conf to accept ldp
> targeted sessions Or maybe the debug of targeted sessions would shed
> some light on why the session won't come up The bgp auto-discovery
> looks good
>
> adam
>
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Ihsan Junaidi
> Ibrahim
> Sent: Thursday, May 10, 2012 6:00 AM
> To: Pete Lumbis
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] VFI LDP transport signaled down (ME3600x)
>
> On PE1,
>
> es-103-glsfb#sh xconnect rib detail
>
> Local Router ID: 200.28.0.15
>
> VPLS-ID: 9930:116, Target ID: 200.28.0.120 iBGP Peer
> Next-Hop: 200.28.9.146
> Hello-Source: 200.28.0.15
> Route-Target: 9930:116
> Incoming RD: 9930:116
> Forwarder: VFI ME002555
> Provisioned: Yes
> NLRI handle: 69000001
>
> PE2,
>
> es-03-akhmw#sh xconnect rib detail
>
> Local Router ID: 200.28.0.120
>
> VPLS-ID: 9930:116, Target ID: 200.28.0.15 iBGP Peer
> Next-Hop: 200.28.2.242
> Hello-Source: 200.28.0.120
> Route-Target: 9930:116
> Incoming RD: 9930:116
> Forwarder: VFI ME002617
> Provisioned: Yes
> NLRI handle: 77000001
>
> On May 10, 2012, at 10:40 AM, Pete Lumbis wrote:
>
>> What do you see in "show xconn rib"?
>>
>> On Wed, May 9, 2012 at 10:36 AM, Ihsan Junaidi Ibrahim
>> <ihsan.junaidi at gmail.com> wrote:
>>> Hi all,
>>>
>>> My topology as follows:
>>>
>>> PE1--P1--P2--P3--P4--P5--PE2
>>>
>>> PE1 lo0 - 200.28.0.15 (15.2(2)S) loader 12.2(52r)EY1
>>> PE2 lo0 - 200.28.0.120 (15.2(2)S) loader 12.2(52r)EY2
>>>
>>> Are there specific nuances for an LDP signaled transport for EoMPLS
>>> and
> VPLS in the Whales platform?
>>>
>>> An xconnect from PE1 to PE2 is signaled successfully however a VPLS
> instance based on BGP autodiscovery (manual VPLS works) is unable to
> bring up the LDP l2transport signal although the VFI is signaled up.
>>>
>>> EoMPLS
>>> ----
>>> es-103-glsfb#sh xconnect peer 200.28.0.120 vc 5070
>>> Legend: XC ST=Xconnect State S1=Segment1 State S2=Segment2 State
>>> UP=Up DN=Down AD=Admin Down IA=Inactive
>>> SB=Standby HS=Hot Standby RV=Recovering NH=No Hardware
>>>
>>> XC ST Segment 1 S1 Segment 2
> S2
>>>
> ------+---------------------------------+--+--------------------------
> ------+---------------------------------+--+------
> -+--
>>> UP pri ac Gi0/19:1(Ethernet) UP mpls 200.28.0.120:5070
> UP
>>>
>>> es-103-glsfb#sh mpls l2transport vc 5070 detail Local interface:
>>> Gi0/19 up, line protocol up, Ethernet:1 up Destination address:
>>> 200.28.0.120, VC ID: 5070, VC status: up
>>> Output interface: Te0/2, imposed label stack {298 16}
>>> Preferred path: not configured
>>> Default path: active
>>> Next hop: 200.28.2.242
>>> Create time: 02:10:43, last status change time: 02:08:57 Signaling
>>> protocol: LDP, peer 200.28.0.120:0 up
>>> Targeted Hello: 200.28.0.15(LDP Id) -> 200.28.0.120, LDP is UP
>>> Status TLV support (local/remote) : enabled/supported
>>> LDP route watch : disabled
>>> Label/status state machine : established, LruRru
>>> Last local dataplane status rcvd: No fault
>>> Last BFD dataplane status rcvd: Not sent
>>> Last BFD peer monitor status rcvd: No fault
>>> Last local AC circuit status rcvd: No fault
>>> Last local AC circuit status sent: No fault
>>> Last local LDP TLV status sent: No fault
>>> Last remote LDP TLV status rcvd: No fault
>>> Last remote LDP ADJ status rcvd: No fault
>>> MPLS VC labels: local 17, remote 16
>>> Group ID: local 0, remote 0
>>> MTU: local 9178, remote 9178
>>> Remote interface description:
>>> Sequencing: receive disabled, send disabled Control Word: On
>>> (configured: autosense)
>>> Dataplane:
>>> SSM segment/switch IDs: 45083/8194 (used), PWID: 2 VC statistics:
>>> transit packet totals: receive 24, send 21
>>> transit byte totals: receive 2064, send 1344
>>> transit packet drops: receive 0, seq error 0, send 0
>>>
>>> VPLS
>>> ----
>>> es-103-glsfb#sh vfi
>>> Legend: RT=Route-target, S=Split-horizon, Y=Yes, N=No
>>>
>>> VFI name: ME002555, state: up, type: multipoint signaling: LDP VPN
>>> ID: 116, VPLS-ID: 9930:116
>>> RD: 9930:116, RT: 9930:116
>>> Bridge-Domain 116 attachment circuits:
>>> Vlan116
>>> Neighbors connected via pseudowires:
>>> Peer Address VC ID Discovered Router ID S
>>> 200.28.9.146 116 200.28.0.120 Y
>>>
>>> es-103-glsfb#sh mpls l2transport vc 116 detail Local interface: VFI
>>> ME002555 vfi up Interworking type is Ethernet Destination address:
>>> 200.28.0.120, VC ID: 116, VC status: down
>>> Last error: Local access circuit is not ready for label advertise
>>> Next hop PE address: 200.28.9.146
>>> Output interface: none, imposed label stack {}
>>> Preferred path: not configured
>>> Default path: no route
>>> No adjacency
>>> Create time: 02:07:55, last status change time: 02:07:55 Signaling
>>> protocol: LDP, peer unknown
>>> Targeted Hello: 200.28.0.15(LDP Id) -> 200.28.9.146, LDP is DOWN,
>>> no
> binding
>>> Status TLV support (local/remote) : enabled/None (no remote binding)
>>> LDP route watch : disabled
>>> Label/status state machine : local standby, AC-ready, LnuRnd
>>> Last local dataplane status rcvd: No fault
>>> Last BFD dataplane status rcvd: Not sent
>>> Last BFD peer monitor status rcvd: No fault
>>> Last local AC circuit status rcvd: No fault
>>> Last local AC circuit status sent: Not sent
>>> Last local LDP TLV status sent: None
>>> Last remote LDP TLV status rcvd: None (no remote binding)
>>> Last remote LDP ADJ status rcvd: None (no remote binding)
>>> MPLS VC labels: local 23, remote unassigned
>>> AGI: type 1, len 8, 000A 26CA 0000 0074
>>> Local AII: type 1, len 4, DF1C 000F (200.28.0.15)
>>> Remote AII: type 1, len 4, DF1C 0078 (200.28.0.120)
>>> Group ID: local n/a, remote unknown
>>> MTU: local 9178, remote unknown
>>> Remote interface description:
>>> Sequencing: receive disabled, send disabled Control Word: On
>>> (configured: autosense)
>>> Dataplane:
>>> SSM segment/switch IDs: 0/0 (used), PWID: 14 VC statistics:
>>> transit packet totals: receive 0, send 0
>>> transit byte totals: receive 0, send 0
>>> transit packet drops: receive 0, seq error 0, send 0
>>>
>>> I'm getting the account team into the loop but if anyone has
>>> encountered
> this scenario before and managed to find the answer, that would be
> most helpful.
>>>
>>> ihsan
>>> _______________________________________________
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>
>
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