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MAC route with IP

Jakob Heitz <jakob.heitz@ericsson.com> Mon, 12 May 2014 04:57 UTC

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From: Jakob Heitz <jakob.heitz@ericsson.com>
To: "l2vpn@ietf.org" <l2vpn@ietf.org>
Subject: MAC route with IP
Thread-Topic: MAC route with IP
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Date: Mon, 12 May 2014 04:56:59 +0000
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Cc: Antoni Przygienda <antoni.przygienda@ericsson.com>
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We have another issue
In section 10: ARP and ND, the draft says:

   If there are multiple IP addresses associated with a MAC address,
   then multiple MAC advertisement routes MUST be generated, one for
   each IP address. For instance, this may be the case when there are
   both an IPv4 and an IPv6 address associated with the MAC address.


   When the IP address is dissociated with the MAC address, then the MAC

   advertisement route with that particular IP address MUST be

   withdrawn.

If such a route is withdrawn and no MAC route without IP exists, then the MAC address will be forgotten. Therefore, we would like to add a sentence:

Whenever a PE advertises one or more MAC advertisement routes with IP address for a particular MAC address, it MUST also advertise one MAC advertisement route without an IP address for that MAC address.

Thanks,
Jakob.

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