Hi,
I tried to install Fast fail over group entry from the controller. I am
able to see the following entry in the switch
sudo ovs-ofctl -O OpenFlow13 dump-flows s12
OFPST_FLOW reply (OF1.3) (xid=0x2):
cookie=0x0, duration=16.213s, table=0, n_packets=3856, n_bytes=161952,
priority=65535,in_port=3,dl_dst=12:70:1d:ab:fe:4c actions=goto_table:1
sudo ovs-ofctl -O OpenFlow13 dump-groups s12
OFPST_GROUP_DESC reply (OF1.3) (xid=0x2):
group_id=4,type=ff,bucket=weight:0,watch_port:1,watch_group:1,actions=output:1,bucket=weight:0,watch_port:2,watch_group:2,actions=output:2
But the packets are not flowing. Is there anything wrong in this. Do we
have to set anything else in openvswitch to enable liveness check. Please
clarify.
Thanks and Regards,
Padma V
cookie=0x0, duration=16.213s, table=0, n_packets=3856, n_bytes=161952,
priority=65535,in_port=3,dl_dst=12:70:1d:ab:fe:4c actions=goto_table:1
On Tue, Jan 20, 2015 at 7:29 AM, Minoru TAKAHASHI <
[email protected]> wrote:
> Hi,
>
> >Do we have to assign the weights for these two buckets as zero.
>
> Yes.
>
> "7.3.4.2 Modify Group Entry Message" in OFspec1.3.4 says:
> The weight field is only defined for select groups,
> and its support is optional. For other group types,
> this fields must be set to 0.
>
> >In case of fast fail over group type what should be the value for these
> two fields.
>
> These fields indicate the port and/or group whose liveness controls
> whether this bucket is a candidate for forwarding. More details are
> described in "6.5 Group Table Modification Messages" of OFspec1.3.4.
>
> On 2015年01月18日 10:52, Padma Jayasankar wrote:
> > Hi,
> > To use fast fail over feature, we have to add more than one buckets.
> Do we have to assign the weights for these two buckets as zero. If not what
> should be the value. Further what does watch_port and watch_group
> represent. In case of fast fail over group type what should be the value
> for these two fields. Please clarify
> >
> > Thanks and Regards,
> > Padma V
> >
> > On Tue, Jan 13, 2015 at 7:52 AM, Yusuke Iwase <[email protected]
> <mailto:[email protected]>> wrote:
> >
> > Hi Padma,
> >
> > On 2015年01月12日 09:08, Padma Jayasankar wrote:
> > > Hi,
> > > I want to use fast fail over group type of OpenFlow 1.3. I need
> sample flow entries for doing this. According to my knowledge, we have to
> change the action as group table and then add an entry in the group table.
> but how to specify in the flow table entry.Please clarify.
> >
> > Please refer to "OpenFlow protocol API Reference" in the Ryu
> documentation.
> >
> http://ryu.readthedocs.org/en/latest/ofproto_v1_3_ref.html#modify-state-messages
> >
> > To add an group entry, you can use OFPGroupMod() class.
> > e.g.) Add fast fail over group type entry.
> > ---------
> > def send_group_mod(self, datapath):
> > ofp = datapath.ofproto
> > ofp_parser = datapath.ofproto_parser
> >
> > port = 1
> > actions = [ofp_parser.OFPActionOutput(port)]
> >
> > weight = 0
> > watch_port = 1
> > watch_group = ofp.OFPG_ANY
> > buckets = [ofp_parser.OFPBucket(weight, watch_port,
> watch_group,
> > actions)]
> >
> > group_id = 1
> > req = ofp_parser.OFPGroupMod(datapath, ofp.OFPGC_ADD,
> > ofp.OFPGT_FF, group_id,
> buckets)
> > datapath.send_msg(req)
> > ---------
> >
> >
> > To group action to flow entry, you can use OFPFlowMod() class.
> > e.g.) Add group action to flow entry.
> > ---------
> > def send_flow_mod(self, datapath):
> > ofp = datapath.ofproto
> > ofp_parser = datapath.ofproto_parser
> >
> > cookie = cookie_mask = 0
> > table_id = 0
> > idle_timeout = hard_timeout = 0
> > priority = 32768
> > buffer_id = ofp.OFP_NO_BUFFER
> >
> > match = ofp_parser.OFPMatch(in_port=1,
> eth_dst='ff:ff:ff:ff:ff:ff')
> >
> > group_id = 1
> > actions = [ofp_parser.OFPActionGroup(group_id)]
> > inst =
> [ofp_parser.OFPInstructionActions(ofp.OFPIT_APPLY_ACTIONS,
> > actions)]
> >
> > req = ofp_parser.OFPFlowMod(datapath, cookie,
> cookie_mask,
> > table_id, ofp.OFPFC_ADD,
> > idle_timeout, hard_timeout,
> > priority, buffer_id,
> > ofp.OFPP_ANY, ofp.OFPG_ANY,
> > ofp.OFPFF_SEND_FLOW_REM,
> > match, inst)
> > datapath.send_msg(req)
> > ---------
> >
> > Thanks
> >
> > >
> > > Thanks and Regards,
> > > Padma V
> > >
> > >
> > >
> > >
> > >
> ------------------------------------------------------------------------------
> > > New Year. New Location. New Benefits. New Data Center in Ashburn,
> VA.
> > > GigeNET is offering a free month of service with a new server in
> Ashburn.
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> > >
> > >
> > >
> > > _______________________________________________
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> > > [email protected] <mailto:
> [email protected]>
> > > https://lists.sourceforge.net/lists/listinfo/ryu-devel
> > >
> >
> >
> >
> >
> >
> ------------------------------------------------------------------------------
> > New Year. New Location. New Benefits. New Data Center in Ashburn, VA.
> > GigeNET is offering a free month of service with a new server in Ashburn.
> > Choose from 2 high performing configs, both with 100TB of bandwidth.
> > Higher redundancy.Lower latency.Increased capacity.Completely compliant.
> > http://p.sf.net/sfu/gigenet
> >
> >
> >
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> >
>
------------------------------------------------------------------------------
New Year. New Location. New Benefits. New Data Center in Ashburn, VA.
GigeNET is offering a free month of service with a new server in Ashburn.
Choose from 2 high performing configs, both with 100TB of bandwidth.
Higher redundancy.Lower latency.Increased capacity.Completely compliant.
http://p.sf.net/sfu/gigenet
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