Hi,
I am new to open flow and SDN.
I have certain queries regarding dpctl utility.
When I executed dpctl utility from mininet VM as "dpctl dump-flows" after
creating topology it gives me details of all switches.
But when I tried to execute dpctl utility from mininet terminal as "dpctl
dump-flows tcp:127.0.0.1:6633" it gives me following error at controller
[openflow.of_01 ] [None 3]: Exception while handling OpenFlow message:
[None 3] ofp_stats_request
[None 3] header:
[None 3] version: 1
[None 3] type: 16 (OFPT_STATS_REQUEST)
[None 3] length: 56
[None 3] xid: 142127887
[None 3] type: 1
[None 3] flags: 0
[None 3] body:
[None 3] match:
[None 3] wildcards:
nw_tos|tp_dst|dl_dst|dl_src|in_port|dl_vlan_pcp|nw_proto|dl_vlan|tp_src|dl_type|nw_src(/0)|nw_dst(/0)
(1110000010000011111111 = 3820ff)
[None 3] table_id: 255
[None 3] out_port: 65535
Traceback (most recent call last):
File "/home/mininet/pox/pox/openflow/of_01.py", line 749, in read
h(self, msg)
TypeError: 'NoneType' object is not callable
Would appreciate any pointers to resolve this.
Regards
Priyanka
Thanks & Regards
Priyanka Chauhan | Software Engineer- Telecom & Media
[email protected]<mailto:[email protected]> |
Cell: +91-7385753269 | Tel: +91-712-6692455
Persistent Systems Ltd. | Partners in Innovation |
www.persistentsys.com<http://www.persistentsys.com/>
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