[dtn-interest] TCPCL and multiple EIDs
Teemu <teemuk@netlab.tkk.fi> Thu, 01 October 2009 08:26 UTC
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Date: Thu, 01 Oct 2009 11:24:50 +0300
From: Teemu <teemuk@netlab.tkk.fi>
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Thread-Topic: TCPCL and multiple EIDs
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Subject: [dtn-interest] TCPCL and multiple EIDs
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Hi All, draft-irtf-dtnrg-tcp-clayer-02 allows a bundle node to report only one EID to the remote peer in its contact header. However, RFC 4838 and 5050 allow bundle nodes to belong to multiple (singleton) endpoints. This becomes a problem, for example, in the following scenario: It is usual to construct EIDs by using registered domain names (e.g., dtn://www.comnet.tkk.fi) and a service name (e.g., /http). This allows mapping between URLs and EIDs by applications without any name resolution or lookups (e.g., http://www.comnet.tkk.fi to dtn://www.comnet.tkk.fi/http). However, one might want to serve multiple domains from a single bundle node causing it to belong to multiple endpoints (e.g., dtn://www.comnet.tkk.fi and dtn://www.netlab.tkk.fi). In such a scenario one would like to report all EIDs to the peer on the other side of a TCPCL link in order for routing to work correctly. Cheers, -Teemu