Re: [OSPF] OSPF Information Hiding
Russ White <russ@cisco.com> Tue, 05 April 2011 21:59 UTC
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Date: Tue, 05 Apr 2011 18:01:05 -0400
From: Russ White <russ@cisco.com>
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To: Russ White <russ@cisco.com>
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Subject: Re: [OSPF] OSPF Information Hiding
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>> OSPFv2, as specified in RFC 2328, states that a multi-access network's subnet is specified by the DR's Network-LSA LSID/mask and installed during the SPF graph traversal. Hence, without some form of signaling, there is no way to prevent other routers in the OSPF area from installing the subnet route (whether or not it is really needed for any purpose in the OSPF network deployment). > > So, in reality, this isn't about the way SPF is run, but the assumption > in RFC2328 that the LSID/subnet mask from the type 2 is the "correct" > subnet to put in the table when building the tree... Hmm... > > Then it seems like the magic number is unavoidable in this case. BTW --I'm fine with moving this doc forward... :-) Russ -- riw@cisco.com :: CCIE :: CCDE :: <>< Grace Alone 'I suppose there are two views about everything,' said Mark. 'Eh? Two views? There are a dozen views about everything, until you know the answer. Then theres never more than one.' -C.S. Lewis
- Re: [OSPF] OSPF Information Hiding Russ White
- Re: [OSPF] OSPF Information Hiding Russ White
- [OSPF] OSPF Information Hiding Acee Lindem
- Re: [OSPF] OSPF Information Hiding Acee Lindem
- Re: [OSPF] OSPF Information Hiding Russ White