The connection from the client is to the LNet router itself on port 988, and the LNet router establishes its own connection to the target (or next router), assuming the network is also TCP. There is no "pass through" of the LNet-level connection, it is always point-to-point on the same fabric/subnet.
The Lustre-level MDS_CONNECT and OST_CONNECT are at a higher level and use "portal" numbers, which are totally different. Cheers, Andreas > On Jun 13, 2022, at 23:27, Åke Sandgren <[email protected]> wrote: > > > >> On 6/14/22 00:51, Andreas Dilger via lustre-discuss wrote: >> *Most* of the port 988 connections will be client->server, but occasionally >> if there is a network problem and the client connection is dropped, then >> server->client connections may be initiated to cancel a lock or similar. If >> this server->client connection cannot be established, then the client may be >> evicted. > > How does that part work with LNet routers inbetween client and server? Which > IP will it try to talk to? > > -- > Ake Sandgren, HPC2N, Umea University, S-90187 Umea, Sweden > Internet: [email protected] Mobile: +46 70 7716134 Fax: +46 90-580 14 > WWW: http://www.hpc2n.umu.se > _______________________________________________ > lustre-discuss mailing list > [email protected] > http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org _______________________________________________ lustre-discuss mailing list [email protected] http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
