Can you make L4 farm as an experiment to see if it works with RPC? (if it
works then my initial guess is correct).
Also, with what type of farm F5 load balancer is setup? Is it the same
configuration as ZLB?
And just a wild guess, RPC library can make an initial ping before making
actual RPC. There is an utility from MS:
http://technet.microsoft.com/en-us/library/hh875578.aspx to do rpcping.
Dima
From: Damien Solodow [mailto:[email protected]]
Sent: Friday, December 27, 2013 9:36 PM
To: [email protected]
Subject: Re: [Zenloadbalancer-support] Issues with Exchange 2010 CAS
Doubtful; I think "ping" in the results is a bit of a misnomer as it's
likely doing a tcping instead. :)
Also I have a similarly configured Exchange array at another client using an
F5 load balancer and the "ping" from the Remote Connectivity Analyzer
succeeds.
On Fri, Dec 27, 2013 at 9:30 PM, Dima Polyakov <[email protected]
<mailto:[email protected]> > wrote:
Could it be because ping is ICMP protocol and ZLB is configured for TCP
(telnet runs on TCP as well, that can explain why ping fails but telnet is
ok).
Dima
From: Damien Solodow [mailto:[email protected]
<mailto:[email protected]> ]
Sent: Friday, December 27, 2013 9:22 PM
To: [email protected]
<mailto:[email protected]>
Subject: [Zenloadbalancer-support] Issues with Exchange 2010 CAS
Running Zen 3.02 on VMware; 2 Exchange 2010 CAS servers in a CAS array.
Zen was configured per the documentation linked on zenloadbalancer.org
<http://zenloadbalancer.org> , including setting static ports and SSL
offload on Exchange.
I also created farms for ports 6001, 6002, and 6004.
Currently all the Exchange related farms only have one backend server
listed.
Everything seems to work except for Outlook Anywhere.
The Remote Connectivity Analyzer shows:
Attempting to ping RPC endpoint 6001 (Exchange Information Store) on server
outlook.domain.com <http://outlook.domain.com> .
The attempt to ping the endpoint failed.
Additional Details
An RPC error was thrown by the RPC Runtime process. Error 1818 CallCancelled
Elapsed Time: 33191 ms.
I know the error 1818 is a timeout; running a similar test internally shows
an error 1722 (RPC_Server_Unavailable).
>From an internal PC I can successfully telnet to 6001 using the Zen farm IP.
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