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List: juniper-nsp
Subject: Re: [j-nsp] include-mp-next-hop
From: Pedro Roque Marques <roque () juniper ! net>
Date: 2004-09-28 16:23:04
Message-ID: y4smzzaqs5z.fsf () roque-bsd ! juniper ! net
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Daniel Roesen writes:
> As far as I understand the abstract of the MP_NEXT_HOP IETF draft,
> it is about e.g. announcing an IPv4 NEXT_HOP for IPv6 NLRI.
w/ mp-bgp the actual next-hop is part of the MP_REACH_NLRI
attribute. However the BGP spec used to say that an update msg that
contains rechable information must include the NEXT_HOP attribute.
Specs changed back and forth on this... the current versions say that
the NEXT_HOP attribute (which doesn't really make much sense in this
context) should not be included. The knob is there to interop w/ old
equipment that requires this attribute althought it ignores the value.
> I'm asking because I'm seeing the following errors on a 12.2(25)S
> box:
> %BGP-6-NEXTHOP: Invalid next hop (0.0.0.0) received from <IPv6 IBGP
> neighbor> : martian
Seems like a new check that has been added...
> The IPv6 IBGP neighbor is a JunOS 6.4R1 box, having
> "include-mp-next-hop" enabled.
Try turning it off then... maybe this ios release already conforms to
the new specs.
Pedro.
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