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RE: Configure Ethernet over MPLS with Different Custo mers using the s ame VLAN

  • From: Gary Rose <grose@wams.com>
  • Date: Wed, 11 May 2005 09:17:48 -0700
  • Resent-Date: Wed, 11 May 2005 14:34:21 -0400
  • X-Scanned-By: MIMEDefang 2.45

Title: Message

We tried bridging but it is not supported on the WS-X6704 4-port 10GE card (which feeds the customer hub location) and there is not one of our switches before the PE. We resolved the issue by adding a second 10GE circuit to the customer hub site from the PE and simply switching all the traffic with VLANs from the directly connected CE’s to the second circuit while allow the incoming MPLS traffic to hit the first port based circuit configured with sub-interfaces which trunk to the customer CE.

 

It’s all good now. Thanks for all your valued input.

 

-Gary

 

From: McCallum, Robert [mailto:robert.mccallum@thus.net]
Sent: Wednesday, May 11, 2005 3:12 AM
To: 'Gary Rose'; mpls-ops@mplsrc.com
Subject: RE: [MPLS-OPS]: Configure Ethernet over MPLS with Different Custo mers using the s ame VLAN

 

Gary - two things here

 

1. You could bridge them

2.  there is a new command called (maybe its not new actually) connect.  this works for frame switching and surprisingly atm switching.  I havent tried it for ethernet but dont see any reason why it shouldnt work.

 

btw - arent the circuits hitting a switch before the PE?  If so then just do good old fashioned switching.

 

 

Robert McCallum
CCIE #8757 R&S, SP Candidate

-----
From: Gary Rose [mailto:grose@wams.com]
Sent: 10 May 2005 18:56
To: McCallum, Robert; mpls-ops@mplsrc.com
Subject: RE: [MPLS-OPS]: Configure Ethernet over MPLS with Different Custo mers using the s ame VLAN

For the second question below could I simply configure a GRE tunnel from a VRF on one of the remote ingress sub-interfaces on the PE to a VRF on one of the hub egress sub-interfaces on the same PE and let the layer 2 .1Q traffic flow on through?

 

Thanks.

 

-Gary

 

From: Gary Rose [mailto:grose@wams.com]
Sent: Tuesday, May 10, 2005 11:59 AM
To: McCallum, Robert; mpls-ops@mplsrc.com
Subject: RE: [MPLS-OPS]: Configure Ethernet over MPLS with Different Custo mers using the s ame VLAN

 

Thanks for the input all.

 

Another question for the group, what about an EoMPLS environment that is a hub and spoke topology where several of the remote locations are attached to the same PE as the hub location? We can't do an xconnect since that remote to hub traffic never leaves the PE into the MPLS cloud. Do I need to provision a second circuit between the PE and the hub location CE and just do pure layer 2 transport between those remotes that attach to the same PE as the hub location?

 

-Gary

 

From: McCallum, Robert [mailto:robert.mccallum@thus.net]
Sent: Tuesday, May 10, 2005 9:34 AM
To: 'Gary Rose'; mpls-ops@mplsrc.com
Subject: RE: [MPLS-OPS]: Configure Ethernet over MPLS with Different Custo mers using the s ame VLAN

 

Gary,

 

the switch ports can be trunk ports no problem.  What you have to do as an SP is to allocate a single vlan for that port i.e. something like

 

int fast0/1

switchport mode trunk

switchport t e d

switchport access vlan 100

 

 

You then take that vlan 100 and "throw" it across your mpls network which then gets stripped off at the end switch. 

Robert McCallum
CCIE #8757 R&S, SP Candidate
 

-----Original Message-----
From: Gary Rose [mailto:grose@wams.com]
Sent: 09 May 2005 23:38
To: Gary Rose; mpls-ops@mplsrc.com
Subject: RE: [MPLS-OPS]: Configure Ethernet over MPLS with Different Custo mers using the s ame VLAN

Thinking out loud.....since these are trunk ports, once the MPLS label is prepended to the packet at the PE, the duplicate customer VLANs shouldn't matter anyway since they won't be seen after they are encapsulated?

 

From: Gary Rose [mailto:grose@wams.com]
Sent: Monday, May 09, 2005 4:44 PM
To: Gary Rose; mpls-ops@mplsrc.com
Subject: RE: [MPLS-OPS]: Configure Ethernet over MPLS with Different Custo mers using the s ame VLAN

 

One more clarification, the access ports need to be 802.1q trunk ports.

 

Thanks again.

 

-Gary

From: Gary Rose [mailto:grose@wams.com]
Sent: Monday, May 09, 2005 4:00 PM
To: mpls-ops@mplsrc.com
Subject: [MPLS-OPS]: Configure Ethernet over MPLS with Different Customers using the s ame VLAN

 

Hello Folks,

 

We are implementing a Metro Ethernet network using Cisco 6500 series MPLS switches with the core connected with 10GigE cards. This is a service provider network configured for EoMPLS (Martini Draft) and will have some customers using the same access VLANs.

With a Layer 2 access configuration, what is the best configuration to accomplish this? QinQ? We have no problem using unique VLANs on the PE side but need to ensure that customer access VLANs can overlap each other on the same PE switch.

Any input is much appreciated.

 

Thanks.

 

-Gary