I'm curious if it could be this same issue:
http://openvswitch.org/pipermail/discuss/2011-September/005583.html
If it's able to discover the link it one direction everything should
be fine still since is_switch_only_port, checks both directions.
def is_switch_only_port(self, dpid, port):
""" Returns True if (dpid, port) designates a port that has any
neighbor switches"""
for dp1, port1, dp2, port2 in self.adjacency_list:
if dp1 == dpid and port1 == port:
return True
if dp2 == dpid and port2 == port:
return True
P.S: I think you should be using vswitch over openflowd ( That's what
I've heard).
Aaron
On Wed, Sep 7, 2011 at 9:54 PM, Namgon Kim <[email protected]> wrote:
> Thank you, Aaron.
>
>
>
> Unfortunately, it didn’t make any difference.
>
>
>
> self.send_openflow_packet(dp, packets[dp][port].tostring(), port,
> OFPP_LOCAL)
>
> (I also tested this. self.send_openflow_packet(dp,
> packets[dp][port].tostring(), [[openflow.OFPAT_OUTPUT, [0,port]]],
> OFPP_LOCAL) )
>
>
>
> I think that it sends LLDP successfully, but the LLDP packet is not
> correctly acknowledged by other switches.
>
>
>
> - Namgon
>
>
>
>
>
> Hi Namgon,
>
>
>
> If you change discovery.py +330 (or around there):
>
>
>
> from:
>
> self.send_openflow_packet(dp, packets[dp][port].tostring(), port)
>
> to
>
> self.send_openflow_packet(dp, packets[dp][port].tostring(), port,
>
> openflow.OFPP_LOCAL )
>
>
>
> Does it discover all the links?
>
>
>
> Aaron
>
>
>
> P.S: you may have to add import nox.lib.openflow as openflow at the top.
>
>
>
>
>
> From: Namgon Kim
> Sent: Wednesday, September 07, 2011 10:06 PM
> To: [email protected]
> Cc: Namgon Kim
> Subject: Cannot discover links with HP Procurve switch
>
>
>
> Dear all,
>
>
>
> I have a problem in discovering links with HP procurve switch.
>
> When I run discovery module, it cannot discover links to procurve switch.
>
>
>
> Below is the screen output when I run NOX with pyswitch and discovery.
>
> $ ./nox_core -i ptcp:6633 pyswitch discovery
>
> NOX 0.9.0(zaku)~full~beta (nox_core), compiled Sep 7 2011 21:42:33
>
> Compiled with OpenFlow 0x01
>
> 00001|discovery|WARN:[0x12101L:2]new link detected (00:00:00:00:00:01:21:01
> p:2 -> 00:00:00:00:00:01:22:01 p:2)
>
> 00002|discovery|WARN:[0xa90c0913435ef00L:26]new link detected
> (0a:90:c0:91:34:35:ef:00 p:26 -> 00:00:00:00:00:01:21:01 p:1)
>
> 00003|discovery|WARN:[0x12201L:2]new link detected (00:00:00:00:00:01:22:01
> p:2 -> 00:00:00:00:00:01:21:01 p:2)
>
>
>
> NOX discovers only uni-directional link from Procurve (0xa90c0913435ef00L)
> to OpenvSwitch (0x12101L).
>
> I followed instructions in
> http://www.openflow.org/wk/index.php/Configuring_HP_Procurve and disable
> LLDP.
>
> But it doesn’t make any difference.
>
>
>
> The firmware version of procurve switch is K.14.68o.
>
> # show version
>
> Image stamp: /sw/code/build/btm(jeant_openflow)
>
> Aug 17 2010 17:47:11
>
> K.14.68o
>
> 66
>
>
>
> And for other OpenFlow-enabled switches, I use OpenvSwitch.
>
> # ovs-openflowd -V
>
> ovs-openflowd (Open vSwitch) 1.1.0pre2
>
> Compiled Jul 14 2011 21:30:55
>
> OpenFlow versions 0x1:0x1
>
>
>
> I would appreciate any comments.
>
>
>
> Regards,
>
>
>
> - Namgon
>
>
>
> _______________________________________________
> openflow-discuss mailing list
> [email protected]
> https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
>
>
--
Aaron O. Rosen
Masters Student - Network Communication
306B Fluor Daniel
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