Date: Thu, 18 Oct 2007 10:47:57 GMT From: Klavs Klavsen <kl@vsen.dk> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/117293: CARP interfaces causes packet loss Message-ID: <200710181047.l9IAlvRT053378@www.freebsd.org> Resent-Message-ID: <200710181050.l9IAo1XI060698@freefall.freebsd.org>
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>Number: 117293 >Category: kern >Synopsis: CARP interfaces causes packet loss >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Oct 18 10:50:01 UTC 2007 >Closed-Date: >Last-Modified: >Originator: Klavs Klavsen >Release: 6.2-Release-p7 >Organization: >Environment: FreeBSD carptest01.example.dk 6.2-RELEASE-p7 FreeBSD 6.2-RELEASE-p7 #8: Tue Oct 16 16:11:14 CEST 2007 root@buildhost.example.dk:/usr/obj/usr/src/sys/ExampleFW i386 >Description: fping (and ping -f) pinging through the firewall, gives me a packet loss. fping in nagios, reports up to 55% packet loss :( - a ping -f gives me 1-3%, but bad enough :( pinging from the firewall itself, to one of the hosts, that packets are lost to (when pinging from other networks) does not give any packet loss. If I disable the CARP config in /etc/rc.conf.local, using the same firewall rules (except for changing the $if vars back to bge0/em0 etc.) the packet loss is gone. I did not have a backup (CARP wise) host running during my tests. >How-To-Repeat: Setup CARP. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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