I agree that the keep alive time setting should be added. Try that and restart. 
I can't remember if a reboot is required for the os settings to take effect.
Hope it works for you.
--
Sent from my Android phone with K-9 Mail. Please excuse my brevity.

_____________________________________________
From: Yaron Zabary <yaron AT ARISTO.TAU.AC DOT IL>
Sent: Sun May 27 02:35:54 GMT+01:00 2012
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] RPC send operation failed; errno = Broken pipe


Check logs on the client for hardware issues (dmesg,
/var/log/messages, /nsr/logs/*). Then, if all seems well, run a tar on
the file system in question and make sure it is able to walk the entire
file system.

tar cvf - / | cat > /dev/null

Another issue might be a firewall between the client and server with
a connection table time out too short for your session. The solution is
to increase the timeout (if possible) or enable TCP keep alive on your
server. This is my setup:

# more /etc/rc2.d/S93nettwicks
#!/bin/sh

# Helps to solve RPC errors under heavy load.

/usr/sbin/ndd -set /dev/tcp tcp_conn_req_max_q 1024
/usr/sbin/ndd -set /dev/tcp tcp_conn_req_max_q0 4096

# Should help with backups thru firewall

/usr/sbin/ndd -set /dev/tcp tcp_keepalive_interval 600000



On 05/26/2012 09:41 PM, ruhailmushtaqvakil wrote:
> HI,
>
> My Networker Server is Solaris and my client is linux.
>
> I am trying to run a backup on this client however it fails everytime.
>
> The backup starts nice, and backs up some 110 GB data and then says lost 
> connection to server.
> it just retries and then fails, tried running manual, same result.
> I m getting connection lost message evry now and then. the total data on 
> system is 275 gb, one saveset only, backup speed is good throughout. almost 
> 25-50 MBps
>
> RPC send operation failed; errno = Broken pipe
>
> this is another error i got from daemon.og
>
>
> Any help is appreciated.
>
> +_____________________________________________

> |This was sent by mytechnicalknowledgebase AT gmail DOT com via Backup 
> Central.
> |Forward SPAM to abuse AT backupcentral DOT com.
> +_____________________________________________



--

-- Yaron.