Re: NSSA summarization
"Pat Murphy - (650)329-4044" <pmurphy@omega7.wr.usgs.gov> Tue, 16 August 2005 15:15 UTC
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From: "Pat Murphy - (650)329-4044" <pmurphy@omega7.wr.usgs.gov>
Subject: Re: NSSA summarization
To: OSPF@PEACH.EASE.LSOFT.COM
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>Suppose I am summarizing type-7 LSAs. In this case while generating >type-5 lsa we follow section 4.1 of rfc 1587, ... >What happens if ospf database has one LSA with LS-Id matches to my >summary-address range and some LSAs with LS-Id falling under >summary-address range. Then in this case what type of metric or >path-type we should set in the type-5 lsa? What Sujay suggests is clearly described in RFC 3101 Section 3.2, namely: (3) Else the Type-7 LSA must be aggregated by the most specific Type-7 address range that subsumes it. If this Type-7 address range has the same [address,mask] pair as the LSA's network and no other translatable Type-7 LSA with a different network best matches this range, then flag the LSA as not contained in any explicitly configured Type-7 address range and process the LSA as described in step (2). Otherwise compute the path type and metric for this Type-7 address range as described below... RFC 3101 obsoletes RFC 1587. Pat
- Re: NSSA summarization Pat Murphy - (650)329-4044