From: Swaroop Potdar (swarooppotdar@hotmail.com)
Date: Fri Jan 21 2005 - 16:08:18 GMT-3
Hi,
With any of the supported platforms for EOMPLS you can not assign an ip
address when doing a Eompls transport with that vlan subinterface interface.
Its against the nature of the working of EoMPLS.
HTH,
Swaroop
>From: "Casey Paul (IE)" <Paul.Casey@o2.com>
>Reply-To: "Casey Paul (IE)" <Paul.Casey@o2.com>
>To: ccielab@groupstudy.com
>Subject: EOMPLS ????
>Date: Fri, 21 Jan 2005 09:36:32 +0000
>
>Hi ,
>
>Cant seems to get the EOMPLS/VPWS - xconnet commands configured on the
>gigabit interfaces when there is IP addresses applied to them on the PE
>kit
>ie. PE sub-interface to CE equipement - Which is running OSPF with the
>CE to transport the Layer3
>
>The command is rejected based on :
>
>bla-pe-01(config)#interface GigabitEthernet2/3/0.10
>bla-pe-01(config-subif)#xconnect 10.160.160.9 10 encapsulation mpls
>Incompatible with ip address command on Gi2/3/0.10 - command rejected.
>
>There Gig card product id card we have is EPA-ge-fe-bbrd
>
>Is the point below in an issue ??? Is it saying we cant do layer3 and
>layer2 at the same time on the same card.
>
>Thoughts...????
>
>Restrictions
>
>
>The following restrictions pertain to the Ethernet over MPLS feature:
>
>* Maximum Transmission Unit: Because Ethernet over MPLS does not
>allow packets to be fragmented and reassembled, ensure that the maximum
>transmission unit (MTU) of all intermediate links between endpoints is
>sufficient to carry the largest Layer 2 VLAN cell received. The ingress
>and egress PE routers must have the same MTU value. The Cisco 12000
>Series 3-Port Gigabit Ethernet Line Card supports 2450 bytes as the
>maximum frame size on core-facing interfaces.
>* Supported Platforms: The instructions for configuring Ethernet
>over MPLS in this feature module apply only to the Cisco 12000 series
>router for 12.0(21)ST. Avoid using these instructions for any other
>platform or release.
>* Address Format: PE routers must be configured with 32-bit masks
>to ensure proper operation of MPLS forwarding between PE routers.
>* Packet Format: Ethernet over MPLS supports VLAN packets that
>conform to the IEEE's 802.1Q standard. The 802.1Q specification
>establishes a standard method for inserting VLAN membership information
>into Ethernet frames.ISL is not supported between the PE and CE routers.
>
>* Configuring on Subinterfaces: For the Cisco 12000 Series router,
>you must enable Ethernet over MPLS on the imposition subinterfaces of
>the router. The disposition interface does not need to be a
>subinterface. Make sure to specify the mpls l2transport route command on
>a 802.1Q subinterface.
>* Line Card Support: When Ethernet over MPLS is enabled on a line
>card, no other feature can be enabled. The line card is dedicated solely
>to the transporting Ethernet VLAN packets over an MPLS backbone.
>* Implicit Null Labels: Ethernet over MPLS supports implicit null
>labels only. Explicit null labels are not supported.
>
>
>
>
>
>
>
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Regards,
Swaroop.
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