Just to add, we are not rate limiting the log messages. On Mon, Apr 23, 2012 at 3:54 PM, junaid khalid < junaid.kha...@seecs.nust.edu.pk> wrote:
> Hi, > > We are getting the following warnings while using OVS. > > 1) Apr 23 13:19:27|00019|dpif|WARN|system@br0: recv failed (No buffer > space available) > 2) Apr 23 13:19:37|00033|pktbuf|WARN|cookie mismatch: 000001fa != 000002fa > Apr 23 13:19:37|00034|connmgr|INFO|br0<->tcp:127.0.0.1:6633: sending > type OFPET_BAD_REQUEST, code OFPBRC_BUFFER_UNKNOWN error reply to > OFPT_FLOW_MOD message > > We get the warnings after a few seconds of traffic switching. First error > is less frequent as compared to second one which is much frequent. > > We have not done any special configurations while running OVS. We are > receiving packets from one ether port and sending out on the other port > after matching five tuple (src/dst IP, src/dst port, protocol). A log of > error messages is attached in a file. > > Following are the platform specifications: > OVS version: 1.4.0 > traffic type: MTU size UDP packets @7.3 Gbps, generating 100,000 flows > by changing src IPs. > OS: Fedora release 12, Linux 2.6.31.5-127.fc12.i686.PAE > CPU: Intel Core i3 @ 2100 GHz > Controller: NOX, simple IP based switching application. Also tried > beacon controller but the problem persists. > > Does this have any effect on performance or functionality of OVS? How > should we resolve this problem? Any suggestions or pointers are > highly appreciated. > > thanks and regards, > Junaid Khalid >
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