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Date: Tue, 9 Mar 2010 10:29:01 GMT
From: "Eugene M. Zheganin" <emz@norma.perm.ru>
To: freebsd-gnats-submit@FreeBSD.org
Subject: CARP preemption mode traffic partially goes to backup node
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>Number:         144572
>Category:       kern
>Synopsis:       [carp] CARP preemption mode traffic partially goes to backup node
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-net
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Mar 09 10:30:01 UTC 2010
>Closed-Date:    Mon Dec 19 08:30:12 UTC 2011
>Last-Modified:  Mon Dec 19 08:30:12 UTC 2011
>Originator:     Eugene M. Zheganin
>Release:        8.0-RELEASE-p2
>Organization:
Norma JSC.
>Environment:
FreeBSD asterisk-omega 8.0-RELEASE-p2 FreeBSD 8.0-RELEASE-p2 #4: Thu Feb 18 15:37:02 YEKT 2010     emz@ns.hq.norma.perm.ru:/usr/obj/usr/src/sys/ASTERISK  i386
>Description:
I have net/asterisk16 setup on two nodes: one main and one backup. I use carp for redundancy. After upgrade to 8.0 I noticed that voice traffic partially goes to backup node. I've checked packet loss (none found) and packet count in tcpdump running on both hosts. Packet count seems to be identical.

I would be glad to help locate the exact source of the problem, but right now I have no idea about what other information I should supply.
>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->freebsd-net 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Thu Mar 11 23:38:02 UTC 2010 
Responsible-Changed-Why:  
reclassify. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=144572 

From: Gleb Smirnoff <glebius@FreeBSD.org>
To: "Eugene M. Zheganin" <emz@norma.perm.ru>
Cc: bug-followup@FreeBSD.org
Subject: kern/144572: [carp] CARP preemption mode traffic partially goes to
 backup node
Date: Sat, 15 Oct 2011 18:17:49 +0400

   Eugene,
 
   is the networking switch that connect both nodes a manageable
 one? Is it possible to look into its forwarding table or even
 log changes to it?
 
 -- 
 Totus tuus, Glebius.
State-Changed-From-To: open->closed 
State-Changed-By: glebius 
State-Changed-When: Sat Oct 15 14:21:53 UTC 2011 
State-Changed-Why:  
Submitter mail relay is not accepting a valid email. 

----- The following addresses had permanent fatal errors ----- 
<emz@norma.perm.ru> 
(reason: 550 5.0.0 <glebius@FreeBSD.org>... Dropping e-mail from glebius@Fre 
eBSD.org, relay glebius.int.ru [81.19.64.117] that is sending the mail isn't 
accepting email it's trying to pass.) 

PR can be re-opened once submitter reports that problem is fixed, and 
we are able to communicate with him. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=144572 
State-Changed-From-To: closed->open 
State-Changed-By: glebius 
State-Changed-When: Tue Oct 18 08:15:18 UTC 2011 
State-Changed-Why:  
Submitter claims (via irc) that email problem is fixed. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=144572 

From: "Eugene M. Zheganin" <eugene@zhegan.in>
To: bug-followup@FreeBSD.org, emz@norma.perm.ru
Cc:  
Subject: Re: kern/144572: [carp] CARP preemption mode traffic partially goes
 to backup node
Date: Mon, 19 Dec 2011 10:36:47 +0600

 Please close this PR, looks like FreeBSD has nothing with it. In case 
 someone will find this thread here, I should notice that I got this in 
 setup like
 
 (A, B nodes with carp) <----ethernet---> catalyst <-----ethernet---> 
 cisco 2811
 
 Only the machines behind the 2811 router were affected. LAN was fine.
 
 In this scheme catalyst was correctly pointing the MAC address of the 
 carp to the port of the master node, but the traffic from the cisco 2811 
 router was going straight to the MAC address of the backup node (not to 
 the MAC address of the carp, which is rather weird, because the ARP 
 cache entry for the target IP was also pointing to the carp MAC 
 address). So I think this is the issue with cisco IOS, whic is, by the 
 way, 12.4(17a).
 
 Thanks for the help and time. Sorry for the false alarm.
State-Changed-From-To: open->closed 
State-Changed-By: glebius 
State-Changed-When: Mon Dec 19 08:28:54 UTC 2011 
State-Changed-Why:  
Closed per submitters request. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=144572 
>Unformatted:
