RE: AToM FR-Ethernet Interworking problem

From: Rin <rintrum_at_gmail.com>
Date: Fri, 29 May 2009 17:50:23 +0700

Hi Bryan, Antonio,

Thank you for your reply. I changed to routed mode and it works. However,
could you please elaborate more on configuring "frame-relay map bridge" in
ethenet mode? Note that I made a mistake when stating that pseudowire
between R1-R4 in my previous post. It is actually pseudowire between R1-R2
to connect R4 & R6.
Also, this kind of problem is really hard to troubleshoot, can you suggest
some troubleshooting technique (procedure, commands...)?
FYI, I'm using IOS 12.2(25)S9 and it requires to configure the dlci
switched. But in the book L2 VPN Architecture, it states: " Configuring the
switched DLCI is an optional step. If the switched DLCI is not created in
the interface, it is created with the connect command."
Thanks
Rin

-----Original Message-----
From: Antonio Soares [mailto:amsoares_at_netcabo.pt]
Sent: Thursday, May 28, 2009 11:50 PM
To: 'Bryan Bartik'; 'Rin'
Cc: ccielab_at_groupstudy.com
Subject: RE: AToM FR-Ethernet Interworking problem

As Bryan said, you need to bridge your traffic in R4. Or you can change to
routed mode and it should work.

Also, it seems in some IOS releases we need to manually configure the dlci
as switched. In other IOS releases, this is automatic.

Regards,

Antonio Soares, CCIE #18473 (R&S)
amsoares_at_netcabo.pt

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
Bryan Bartik
Sent: quinta-feira, 28 de Maio de 2009 17:06
To: Rin
Cc: ccielab_at_groupstudy.com
Subject: Re: AToM FR-Ethernet Interworking problem

Hi Rin,

Looks like you are doing bridged mode so I believe you will need
"frame-relay map bridge" on the CE (R4). Also, I have this working
without specifying a switched DLCI on the PE (R1). What reference are you
using?

On Thu, May 28, 2009 at 9:46 AM, Rin <rintrum@ gmail.com> wrote:

> Hi all,
>
>
>
> I have topo as below:
>
>
> R4(s1/0)------FR---------(s2/0)R1(s2/1)----------(s1/2)R3(s1/3)-------
> ------
> -s2/1)R2(f0/0)-----------------(e0/0)R6
>
> MPLS is running on R1,R2,R3. I want to create a pseudowire b/w R1 & R4.
> Here's my configuration:
>
> On R1:
>
> pseudowire-class vl-fr-iwe
>
> encapsulation mpls
>
> interworking ethernet
>
> !
>
> interface Serial2/0
>
> encapsulation frame-relay
>
> serial restart-delay 0
>
> frame-relay interface-dlci 104 switched
>
> !
>
> connect r1r2 Serial2/0 104 l2transport
>
> xconnect 2.2.2.2 406 pw-class vl-fr-iwe
>
>
>
> On R2:
>
> pseudowire-class vl-fr-iwe
>
> encapsulation mpls
>
> interworking ethernet
>
> !
>
> interface FastEthernet0/0
>
> no ip address
>
> no cdp enable
>
> no clns route-cache
>
> xconnect 1.1.1.1 406 pw-class vl-fr-iwe
>
>
>
> On R4:
>
> interface Serial1/0
>
> ip address 172.10.46.4 255.255.255.0
>
> encapsulation frame-relay
>
> serial restart-delay 0
>
> frame-relay map ip 172.10.46.6 401 broadcast
>
>
>
> On R6:
>
> interface Ethernet0/0
>
> ip address 172.10.46.6 255.255.255.0
>
>
>
> Below is my verification:
>
> Rack1R1#sho mpls l2 vc de
>
> Local interface: Se2/0 up, line protocol up, FR DLCI 104 up
>
> MPLS VC type is Ethernet, interworking type is Ethernet
>
> Destination address: 2.2.2.2, VC ID: 406, VC status: up
>
> Output interface: Se2/1, imposed label stack {19 17}
>
> Preferred path: not configured
>
> Default path: active
>
> Tunnel label: 17, next hop point2point
>
> Create time: 00:13:57, last status change time: 00:13:27
>
> Signaling protocol: LDP, peer 2.2.2.2:0 up
>
> MPLS VC labels: local 16, remote 19
>
> Group ID: local 0, remote 0
>
> MTU: local 1500, remote 1500
>
> Remote interface description:
>
> Sequencing: receive disabled, send disabled
>
> VC statistics:
>
> packet totals: receive 431, send 0
>
> byte totals: receive 30464, send 0
>
> packet drops: receive 0, send 0
>
>
>
> Rack1R2#sho mpls l2 vc de
>
> Local interface: Fa0/0 up, line protocol up, Ethernet up
>
> Destination address: 1.1.1.1, VC ID: 406, VC status: up
>
> Output interface: Se2/1, imposed label stack {16 16}
>
> Preferred path: not configured
>
> Default path: active
>
> Tunnel label: 16, next hop point2point
>
> Create time: 00:15:09, last status change time: 00:13:47
>
> Signaling protocol: LDP, peer 1.1.1.1:0 up
>
> MPLS VC labels: local 19, remote 16
>
> Group ID: local 0, remote 0
>
> MTU: local 1500, remote 1500
>
> Remote interface description:
>
> Sequencing: receive disabled, send disabled
>
> VC statistics:
>
> packet totals: receive 0, send 441
>
> byte totals: receive 0, send 37864
>
> packet drops: receive 0, send 0
>
>
>
> Rack1R4#sho fram map
>
> Serial1/0 (up): ip 172.10.46.6 dlci 401(0x191,0x6410), static,
>
> broadcast,
>
> CISCO, status defined, active
>
>
>
> So everything seems ok, the link between R2-R6 is ok too. However I
> cannot ping from R4 to R6.
>
> Rack1R4#ping 172.10.46.6
>
>
>
> Type escape sequence to abort.
>
> Sending 5, 100-byte ICMP Echos to 172.10.46.6, timeout is 2 seconds:
>
> .....
>
> Success rate is 0 percent (0/5)
>
>
>
> Can anyone help? Sorry for the long email. Thank you.
>
> Rin
>
>
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--
Bryan Bartik
CCIE #23707 (R&S), CCNP
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com
Blogs and organic groups at http://www.ccie.net
Received on Fri May 29 2009 - 17:50:23 ART

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