[j-nsp] L2circuit martini issue....!
FAHAD ALI KHAN
fahad.alikhan at gmail.com
Wed Jan 24 03:24:21 EST 2007
Thanx Alex....!
FREEK works....but there comes another issue like that....as we transport
VLAN-TCC and VLAN-CCC clients. If there lastmile goes down.....VLAN BPDUs
will still recieve over Turnk port (Switch to Juniper). So it coz L2Circuit
to remain up.
I look for the Ethernet/VLAN OAM that defines in 802.3ah. but its
implementation is not possible on all layer 2 Switches.
Also work on these standards are still in process.
can u ppl tell me, Is there any other thing that can help me to detect the
end to end failure for Layer 2 VPNs (CCC or TCC) like FREEK do for FR. Im
looking for OAM or BFD....features.....does they can solve the issue.....!
Regards
Fahad Ali Khan
On 1/15/07, Alex <alex.arseniev at gmail.com> wrote:
>
> If Your Client routers support it, FREEK (acronym for Frame-Relay
> End-to-End
> Keepalive) may be what You are looking for...
> Cheers
> Alex
>
> ----- Original Message -----
> From: "FAHAD ALI KHAN" <fahad.alikhan at gmail.com>
> To: "juniper-nsp" <juniper-nsp at puck.nether.net>
> Sent: Monday, January 15, 2007 9:48 AM
> Subject: [j-nsp] L2circuit martini issue....!
>
>
> Guys....!
>
> I have got stuck in a issue regarding MPLS L2circuit (Martini). Here is my
> scenario,
>
>
> L2cct (Martini) has been configured between two MPLS Nodes. Client Site A
> is
> connected directly over E1 at MPLS Node (M10i) and Client Site B is
> connected to Frame Relay Switch (New Bridge 3600) over E1 where its DLCI
> sync. It then extended to second MPLS Node over FR-NNI (E1). Refer to
> below
> mention diagram,
>
> __
> ____________________
>
> | ( L2circuit
> Martini) |
>
> CE – FR Switch – (FR-NNI over E1) – M10i ------------------------- M10i –
> CE
>
>
>
> Client is UP and running successfully.
>
>
>
> **
>
> *MPLS Node - B*
>
>
>
> *show interfaces ds-1/1/2:1.0 *
>
> Logical interface ds-1/1/2:1.0 (Index 121) (SNMP ifIndex 156)
>
> Description: *** Client X SITE B ***
>
> Flags: Point-To-Point SNMP-Traps Encapsulation: FR-CCC
>
> Input packets : 47743200
>
> Output packets: 43623195
>
> Protocol ccc, MTU: 1504
>
> Flags: None
>
> *DLCI 152*
>
> * Flags: Active, DCE-Configured*
>
> Total down time: 53:49:06 sec, Last down: 01:34:06 ago
>
> Input packets : 47743200
>
> Output packets: 43623195
>
>
>
> *show l2circuit connections*
>
> Neighbor: A.B.C.D
>
> *Interface Type St Time last up # Up trans*
>
> *ds-1/1/2:1.0{vc 152) rmt Up Dec 26 08:32:09 2006 1*
>
> *Local interface: ds-1/1/2:1.0, Status: Up* , Encapsulation: FRAME RELAY
>
> Remote PE: W.X.Y.Z, Negotiated control-word: Yes (Null)
>
> Incoming label: 102320, Outgoing label: 155888
>
>
>
> *MPLS Node - A*
>
>
>
> show interfaces e1-1/1/9.0
>
> Logical interface e1-1/1/9.0 (Index 121) (SNMP ifIndex 152)
>
> Description: *** Client X SITE A ***
>
> Flags: Point-To-Point SNMP-Traps Encapsulation: FR-CCC
>
> Input packets : 477432
>
> Output packets: 43623
>
> Protocol ccc, MTU: 1504
>
> Flags: None
>
> *DLCI 152*
>
> * Flags: Active, DCE-Configured*
>
> Total down time: 53:49:06 sec, Last down: 01:34:06 ago
>
> Input packets : 477432
>
> Output packets: 43623
>
>
>
> *show l2circuit connections*
>
> Neighbor: W.X.Y.Z
>
> *Interface Type St Time last up # Up trans*
>
> *e1-1/1/9.0{vc 152) rmt Up Dec 26 08:32:09 2006 1*
>
> *Local interface: e1-1/1/9.0, Status: Up, *Encapsulation: FRAME RELAY
>
> Remote PE: A.B.C.D, Negotiated control-word: Yes (Null)
>
> Incoming label: 102320, Outgoing label: 155888
>
>
>
> *Problem:*
>
>
>
> When Client SITE B goes down (due to lastmile failure), FR Node make the
> DLCI inactive and signals to M10i to force the DLCI down. But at M10i only
> DLCI goes down not CCC which causes l2circuit to remain UP and SITE A get
> the L2circuit UP, if its other SITE is down. If client have a backup link
> between these sites than Site A router will not trigger for backup link.
>
>
>
> *MPLS Node - B*
>
>
>
> *show interfaces ds-1/1/2:1.0 *
>
> Logical interface ds-1/1/2:1.0 (Index 121) (SNMP ifIndex 156)
>
> Description: *** Client X SITE B ***
>
> Flags: Point-To-Point SNMP-Traps Encapsulation: FR-CCC
>
> Input packets : 47743200
>
> Output packets: 43623195
>
> Protocol ccc, MTU: 1504
>
> Flags: None
>
> * DLCI 152*
>
> * Flags: Down, DCE-Configured*
>
> Total down time: 53:49:06 sec, Last down: 01:34:06 ago
>
> Input packets : 47743200
>
> Output packets: 43623195
>
> **
>
> * *
>
> **
>
> *show l2circuit connections*
>
> Neighbor: A.B.C.D
>
> *Interface Type St Time last up # Up trans*
>
> *ds-1/1/2:1.0{vc 152) rmt Up Dec 26 08:32:09 2006 1*
>
> *Local interface: ds-1/1/2:1.0, Status: Up* , Encapsulation: FRAME RELAY
>
> Remote PE: W.X.Y.Z, Negotiated control-word: Yes (Null)
>
> Incoming label: 102320, Outgoing label: 155888
>
>
>
> *MPLS Node - A*
>
>
>
> *show interfaces e1-1/1/9.0*
>
> Logical interface e1-1/1/9.0 (Index 121) (SNMP ifIndex 152)
>
> Description: *** Client X SITE A ***
>
> Flags: Point-To-Point SNMP-Traps Encapsulation: FR-CCC
>
> Input packets : 477432
>
> Output packets: 43623
>
> Protocol ccc, MTU: 1504
>
> Flags: None
>
> *DLCI 152*
>
> * Flags: Active, DCE-Configured*
>
> Total down time: 53:49:06 sec, Last down: 01:34:06 ago
>
> Input packets : 477432
>
> Output packets: 43623
>
>
>
> *show l2circuit connections*
>
> Neighbor: W.X.Y.Z
>
> *Interface Type St Time last up # Up trans*
>
> *e1-1/1/9.0{vc 152) rmt Up Dec 26 08:32:09 2006 1*
>
> *Local interface: e1-1/1/9.0, Status: Up* , Encapsulation: FRAME RELAY
>
> Remote PE: A.B.C.D, Negotiated control-word: Yes (Null)
>
> Incoming label: 102320, Outgoing label: 155888
>
>
>
> My Question:
>
> *Why L2circuit is not down, if FR node signal to down the DLCI? This
> signal
> not causes CCC to down. or Is there any way to reflect DLCI down to far
> end
> CE? *
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