Solaris 9 - SSH 40 Second Delay Post: 302805545

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Operating Systems Solaris Solaris 9 - SSH 40 Second Delay Post 302805545 by hicksd8 on Friday 10th of May 2013 10:25:05 AM

05-10-2013

Moderator

Yes, it looks like a delay caused by network function so could be a number of things.

Your Solaris box doesn't use DNS but other network security devices or other nodes might. Some network security devices may be trying to do a reverse DNS lookup to validate the initiator of the connection so you should get your network support to check that entries for the client and server are in there.

Also, take a look in /etc/defaultrouter and see that ip address. Is it still valid? When a inbound connection request comes in Solaris needs to instantly know the route back. I've known network support boys to retire a router and not tell everybody so Solaris then tries to use an incorrect default router. Check with the network team that your configured default router is still alive and kicking. Try pinging it and see if it instantly responds.

Have you tried doing the same connection from a different client? Do you get the same result? What about a different client in a different location?

Can you ping your client from the server? (Of course, not all nodes may be configured to reply to pings but if it does work then it tells you something.)

If I get any more thoughts then I'll post them. Good hunting.

PS. How many NIC's in the box? Can we all assume just the one?

Last edited by hicksd8; 05-10-2013 at 11:35 AM..

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LEARN ABOUT DEBIAN

rping

RPING(1)							     librdmacm								  RPING(1)

NAME

       rping - RDMA CM connection and RDMA ping-pong test.

SYNOPSIS

       rping -s [-v] [-V] [-d] [-P] [-a address] [-p port]
		 [-C message_count] [-S message_size]
       rping -c [-v] [-V] [-d] -a address [-p port]
		 [-C message_count] [-S message_size]

DESCRIPTION

       Establishes  a  reliable  RDMA connection between two nodes using the librdmacm, optionally performs RDMA transfers between the nodes, then
       disconnects.

OPTIONS

       -s     Run as the server.

       -c     Run as the client.

       -a address
	      On the server, specifies the network address to bind the connection to.  On the client, specifies the server address to connect to.

       -p     Port number for listening server.

       -v     Display ping data.

       -V     Validate ping data.

       -d     Display debug information.

       -C message_count
	      The number of messages to transfer over each connection.	(default infinite)

       -S message_size
	      The size of each message transferred, in bytes.  (default 100)

       -P     Run the server in persistent mode.  This allows multiple rping clients to connect to a single server instance. The server  will  run
	      until killed.

NOTES

       Because	this  test maps RDMA resources to userspace, users must ensure that they have available system resources and permissions.  See the
       libibverbs README file for additional details.

SEE ALSO

       rdma_cm(7), ucmatose(1), udaddy(1), mckey(1)

librdmacm							    2007-05-15								  RPING(1)

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