Hi Pynbiang,

Did you execute "sudo update-grub" command and then reboot?
The outputs of "ip a" command shows IPv6 is NOT enabled...

Thanks,
Iwase


On 2017年07月01日 17:27, Pynbiang Hadem wrote:
Hi Fujimoto,

I have made the changes pointed out by you as below:
1)-----------/etc/sysctl.conf -----------------------
# Mininet: disable IPv6
#net.ipv6.conf.all.disable_ipv6 = 1
#net.ipv6.conf.default.disable_ipv6 = 1
#net.ipv6.conf.lo.disable_ipv6 = 1

2)----------- /etc/default/grub ---------------------
GRUB_CMDLINE_LINUX_DEFAULT="text"


OUTPUT:
1)---------- mininet@mininet-vm:~$ ip a--------------------------------------------------------------------------------

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group 
default
     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
     inet 127.0.0.1/8 <http://127.0.0.1/8> scope host lo
        valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP 
group default qlen 1000
     link/ether 08:00:27:1d:fb:d0 brd ff:ff:ff:ff:ff:ff
     inet 10.0.2.15/24 <http://10.0.2.15/24> brd 10.0.2.255 scope global eth0
        valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP 
group default qlen 1000
     link/ether 08:00:27:72:29:6a brd ff:ff:ff:ff:ff:ff
     inet 192.168.56.101/24 <http://192.168.56.101/24> brd 192.168.56.255 scope 
global eth1
        valid_lft forever preferred_lft forever
4: s1-eth1@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master ovs-system state UP group default qlen 1000
     link/ether 5a:26:c9:f8:d1:70 brd ff:ff:ff:ff:ff:ff
5: s1-eth2@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master ovs-system state UP group default qlen 1000
     link/ether 06:08:e6:9e:72:68 brd ff:ff:ff:ff:ff:ff
6: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group 
default qlen 1000
     link/ether 96:bd:ba:cf:f1:5e brd ff:ff:ff:ff:ff:ff
7: s1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 
1000
     link/ether 1e:f0:00:5b:a3:40 brd ff:ff:ff:ff:ff:ff
--------------------------------------------------------------------------------------------------------------------------------------------

2)----------------- sudo ryu-manager ryu/services/protocols/bgp/application.py --bgp-app-config-file ryu/services/protocols/bgp/bgp_sample_conf.py -------------------------- mininet@mininet-vm:~/ryu$ sudo ryu-manager ryu/services/protocols/bgp/application.py --bgp-app-config-file ryu/services/protocols/bgp/bgp_sample_conf.py
loading app ryu/services/protocols/bgp/application.py
instantiating app ryu/services/protocols/bgp/application.py of RyuBGPSpeaker
ryu/services/protocols/bgp/bgp_sample_conf.py:1: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   import os
ryu/services/protocols/bgp/bgp_sample_conf.py:3: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import RF_VPN_V4
ryu/services/protocols/bgp/bgp_sample_conf.py:4: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import RF_VPN_V6
ryu/services/protocols/bgp/bgp_sample_conf.py:5: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import RF_L2_EVPN
ryu/services/protocols/bgp/bgp_sample_conf.py:6: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import RF_VPNV4_FLOWSPEC
ryu/services/protocols/bgp/bgp_sample_conf.py:7: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import RF_VPNV6_FLOWSPEC
ryu/services/protocols/bgp/bgp_sample_conf.py:8: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import RF_L2VPN_FLOWSPEC
ryu/services/protocols/bgp/bgp_sample_conf.py:9: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import EVPN_MAX_ET
ryu/services/protocols/bgp/bgp_sample_conf.py:10: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import ESI_TYPE_LACP
ryu/services/protocols/bgp/bgp_sample_conf.py:11: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import ESI_TYPE_MAC_BASED
ryu/services/protocols/bgp/bgp_sample_conf.py:12: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import EVPN_ETH_AUTO_DISCOVERY
ryu/services/protocols/bgp/bgp_sample_conf.py:13: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import EVPN_MAC_IP_ADV_ROUTE
ryu/services/protocols/bgp/bgp_sample_conf.py:14: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import TUNNEL_TYPE_VXLAN
ryu/services/protocols/bgp/bgp_sample_conf.py:15: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import EVPN_MULTICAST_ETAG_ROUTE
ryu/services/protocols/bgp/bgp_sample_conf.py:16: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import EVPN_ETH_SEGMENT
ryu/services/protocols/bgp/bgp_sample_conf.py:17: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import EVPN_IP_PREFIX_ROUTE
ryu/services/protocols/bgp/bgp_sample_conf.py:18: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import FLOWSPEC_FAMILY_IPV4
ryu/services/protocols/bgp/bgp_sample_conf.py:19: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import FLOWSPEC_FAMILY_IPV6
ryu/services/protocols/bgp/bgp_sample_conf.py:20: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import FLOWSPEC_FAMILY_VPNV4
ryu/services/protocols/bgp/bgp_sample_conf.py:21: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import FLOWSPEC_FAMILY_VPNV6
ryu/services/protocols/bgp/bgp_sample_conf.py:22: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import FLOWSPEC_FAMILY_L2VPN
ryu/services/protocols/bgp/bgp_sample_conf.py:23: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import FLOWSPEC_TA_SAMPLE
ryu/services/protocols/bgp/bgp_sample_conf.py:24: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import FLOWSPEC_TA_TERMINAL
ryu/services/protocols/bgp/bgp_sample_conf.py:25: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import FLOWSPEC_VLAN_POP
ryu/services/protocols/bgp/bgp_sample_conf.py:26: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import FLOWSPEC_VLAN_PUSH
ryu/services/protocols/bgp/bgp_sample_conf.py:27: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import FLOWSPEC_VLAN_SWAP
ryu/services/protocols/bgp/bgp_sample_conf.py:28: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import FLOWSPEC_VLAN_RW_INNER
ryu/services/protocols/bgp/bgp_sample_conf.py:29: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import FLOWSPEC_VLAN_RW_OUTER
ryu/services/protocols/bgp/bgp_sample_conf.py:30: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import FLOWSPEC_TPID_TI
ryu/services/protocols/bgp/bgp_sample_conf.py:31: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import FLOWSPEC_TPID_TO
ryu/services/protocols/bgp/bgp_sample_conf.py:32: RuntimeWarning: Parent module 'bgpspeaker.application' not found while handling absolute import
   from ryu.services.protocols.bgp.bgpspeaker import 
REDUNDANCY_MODE_SINGLE_ACTIVE
API method core.start called with args: {'router_id': '172.17.0.1', 'label_range': (100, 100000), 'waiter': <ryu.lib.hub.Event object at 0x7fdc964c4590>, 'bgp_server_port': 179, 'local_as': 65001, 'allow_local_as_in_count': 0, 'refresh_stalepath_time': 0, 'cluster_id': None, 'local_pref': 100, 'refresh_max_eor_time': 0}
Error creating socket: [Errno 97] Address family not supported by protocol
API method neighbor.create called with args: {'connect_mode': 'both', 'cap_mbgp_evpn': False, 'remote_as': 65002, 'cap_mbgp_vpnv6': True, 'cap_mbgp_l2vpnfs': False, 'cap_four_octet_as_number': True, 'cap_mbgp_ipv6': True, 'is_next_hop_self': False, 'cap_mbgp_ipv4': True, 'cap_mbgp_ipv4fs': False, 'is_route_reflector_client': False, 'cap_mbgp_ipv6fs': False, 'is_route_server_client': False, 'cap_enhanced_refresh': False, 'peer_next_hop': None, 'password': None, 'ip_address': '172.17.0.2', 'cap_mbgp_vpnv4fs': False, 'cap_mbgp_vpnv4': True, 'cap_mbgp_vpnv6fs': False} API method neighbor.create called with args: {'connect_mode': 'both', 'cap_mbgp_evpn': True, 'remote_as': 65001, 'cap_mbgp_vpnv6': False, 'cap_mbgp_l2vpnfs': False, 'cap_four_octet_as_number': True, 'cap_mbgp_ipv6': False, 'is_next_hop_self': False, 'cap_mbgp_ipv4': True, 'cap_mbgp_ipv4fs': False, 'is_route_reflector_client': False, 'cap_mbgp_ipv6fs': False, 'is_route_server_client': False, 'cap_enhanced_refresh': False, 'peer_next_hop': None, 'password': None, 'ip_address': '172.17.0.3', 'cap_mbgp_vpnv4fs': False, 'cap_mbgp_vpnv4': False, 'cap_mbgp_vpnv6fs': False} API method neighbor.create called with args: {'connect_mode': 'both', 'cap_mbgp_evpn': False, 'remote_as': 65001, 'cap_mbgp_vpnv6': False, 'cap_mbgp_l2vpnfs': True, 'cap_four_octet_as_number': True, 'cap_mbgp_ipv6': False, 'is_next_hop_self': False, 'cap_mbgp_ipv4': True, 'cap_mbgp_ipv4fs': True, 'is_route_reflector_client': False, 'cap_mbgp_ipv6fs': True, 'is_route_server_client': False, 'cap_enhanced_refresh': False, 'peer_next_hop': None, 'password': None, 'ip_address': '172.17.0.4', 'cap_mbgp_vpnv4fs': True, 'cap_mbgp_vpnv4': False, 'cap_mbgp_vpnv6fs': True} API method vrf.create called with args: {'import_rts': ['65001:100'], 'route_family': 'ipv4', 'site_of_origins': None, 'multi_exit_disc': None, 'export_rts': ['65001:100'], 'route_dist': '65001:100'} API method vrf.create called with args: {'import_rts': ['65001:150'], 'route_family': 'ipv6', 'site_of_origins': None, 'multi_exit_disc': None, 'export_rts': ['65001:150'], 'route_dist': '65001:150'} API method vrf.create called with args: {'import_rts': ['65001:200'], 'route_family': 'evpn', 'site_of_origins': None, 'multi_exit_disc': None, 'export_rts': ['65001:200'], 'route_dist': '65001:200'} API method vrf.create called with args: {'import_rts': ['65001:250'], 'route_family': 'ipv4fs', 'site_of_origins': None, 'multi_exit_disc': None, 'export_rts': ['65001:250'], 'route_dist': '65001:250'} API method vrf.create called with args: {'import_rts': ['65001:300'], 'route_family': 'ipv6fs', 'site_of_origins': None, 'multi_exit_disc': None, 'export_rts': ['65001:300'], 'route_dist': '65001:300'} API method vrf.create called with args: {'import_rts': ['65001:350'], 'route_family': 'l2vpnfs', 'site_of_origins': None, 'multi_exit_disc': None, 'export_rts': ['65001:350'], 'route_dist': '65001:350'}
API method network.add called with args: {'prefix': '10.10.1.0/24 
<http://10.10.1.0/24>'}
API method prefix.add_local called with args: {'prefix': '10.20.1.0/24 <http://10.20.1.0/24>', 'next_hop': '172.17.0.1', 'route_dist': '65001:100', 'route_family': 'ipv4'}
API method network.add called with args: {'prefix': '2001:db8:1::/64'}
API method prefix.add_local called with args: {'prefix': '2001:db8:2::/64', 'next_hop': '::ffff:172.17.0.1', 'route_dist': '65001:150', 'route_family': 'ipv6'} API method evpn_prefix.add_local called with args: {'route_type': 'eth_ad', 'redundancy_mode': 'single_active', 'ethernet_tag_id': 4294967295, 'next_hop': '0.0.0.0', 'route_dist': '65001:200', 'esi': {'port_key': 100, 'type': 1, 'mac_addr': 'aa:bb:cc:dd:ee:ff'}} API method evpn_prefix.add_local called with args: {'ip_addr': '10.30.1.1', 'tunnel_type': 'vxlan', 'route_type': 'mac_ip_adv', 'ethernet_tag_id': 0, 'vni': 200, 'next_hop': '172.17.0.1', 'route_dist': '65001:200', 'mac_addr': 'aa:bb:cc:dd:ee:ff', 'esi': 0} API method evpn_prefix.add_local called with args: {'route_type': 'multicast_etag', 'route_dist': '65001:200', 'next_hop': '0.0.0.0', 'ip_addr': '10.40.1.1', 'ethernet_tag_id': 0} API method evpn_prefix.add_local called with args: {'route_type': 'eth_seg', 'route_dist': '65001:200', 'next_hop': '0.0.0.0', 'ip_addr': '172.17.0.1', 'esi': {'local_disc': 100, 'type': 3, 'mac_addr': 'aa:bb:cc:dd:ee:ff'}} API method evpn_prefix.add_local called with args: {'ip_prefix': '10.50.1.0/24 <http://10.50.1.0/24>', 'route_type': 'ip_prefix', 'ethernet_tag_id': 0, 'next_hop': '0.0.0.0', 'route_dist': '65001:200', 'gw_ip_addr': '172.16.0.1', 'esi': 0} API method flowspec.add called with args: {'rules': {'icmp_code': 6, 'tcp_flags': 'SYN+ACK & !=URGENT', 'fragment': 'LF | ==FF', 'dscp': '22 | 24', 'packet_len': 1000, 'icmp_type': 0, 'port': '80 | 8000', 'src_port': '>=8500 & <=9000', 'dst_prefix': '10.60.1.0/24 <http://10.60.1.0/24>', 'dst_port': '>9000 & <9050', 'ip_proto': 6, 'src_prefix': '172.17.0.0/24' <http://172.17.0.0/24'>}, 'flowspec_family': 'ipv4fs', 'actions': {'redirect': {'local_administrator': 100, 'as_number': 10}, 'traffic_marking': {'dscp': 24}, 'traffic_rate': {'rate_info': 100.0, 'as_number': 0}, 'traffic_action': {'action': 3}}} API method flowspec.add_local called with args: {'rules': {'icmp_code': 6, 'tcp_flags': 'SYN+ACK & !=URGENT', 'fragment': 'LF | ==FF', 'dscp': '22 | 24', 'packet_len': 1000, 'icmp_type': 0, 'port': '80 | 8000', 'src_port': '>=8500 & <=9000', 'dst_prefix': '10.70.1.0/24 <http://10.70.1.0/24>', 'dst_port': '>9000 & <9050', 'ip_proto': 6, 'src_prefix': '172.18.0.0/24' <http://172.18.0.0/24'>}, 'flowspec_family': 'vpnv4fs', 'route_dist': '65001:250', 'actions': {'redirect': {'local_administrator': 100, 'as_number': 10}, 'traffic_marking': {'dscp': 24}, 'traffic_rate': {'rate_info': 100.0, 'as_number': 0}, 'traffic_action': {'action': 3}}} API method flowspec.add called with args: {'rules': {'icmp_code': 6, 'tcp_flags': 'SYN+ACK & !=URGENT', 'fragment': 'LF | ==FF', 'flow_label': 100, 'dscp': '22 | 24', 'packet_len': 1000, 'icmp_type': 0, 'port': '80 | 8000', 'src_port': '>=8500 & <=9000', 'dst_prefix': '2001::1/128/32', 'dst_port': '>9000 & <9050', 'next_header': 6, 'src_prefix': '3001::2/128'}, 'flowspec_family': 'ipv6fs', 'actions': {'redirect': {'local_administrator': 100, 'as_number': 10}, 'traffic_marking': {'dscp': 24}, 'traffic_rate': {'rate_info': 100.0, 'as_number': 0}, 'traffic_action': {'action': 3}}} API method flowspec.add_local called with args: {'rules': {'icmp_code': 6, 'tcp_flags': 'SYN+ACK & !=URGENT', 'fragment': 'LF | ==FF', 'flow_label': 100, 'dscp': '22 | 24', 'packet_len': 1000, 'icmp_type': 0, 'port': '80 | 8000', 'src_port': '>=8500 & <=9000', 'dst_prefix': '2001::1/128/32', 'dst_port': '>9000 & <9050', 'next_header': 6, 'src_prefix': '3001::2/128'}, 'flowspec_family': 'vpnv6fs', 'route_dist': '65001:300', 'actions': {'redirect': {'local_administrator': 100, 'as_number': 10}, 'traffic_marking': {'dscp': 24}, 'traffic_rate': {'rate_info': 100.0, 'as_number': 0}, 'traffic_action': {'action': 3}}} API method flowspec.add_local called with args: {'rules': {'inner_vlan_id': '<3000', 'dst_mac': 'BE:EF:C0:FF:EE:DD', 'ether_type': 2048, 'llc_dsap': 66, 'inner_vlan_cos': '<=5', 'vlan_id': '>4000', 'llc_ssap': 66, 'vlan_cos': '>=3', 'llc_control': 100, 'snap': 74565, 'src_mac': '12:34:56:78:90:AB'}, 'flowspec_family': 'l2vpnfs', 'route_dist': '65001:350', 'actions': {'redirect': {'local_administrator': 100, 'as_number': 10}, 'traffic_rate': {'rate_info': 100.0, 'as_number': 0}, 'traffic_action': {'action': 3}, 'traffic_marking': {'dscp': 24}, 'tpid_action': {'tpid_2': 300, 'tpid_1': 200, 'actions': 49152}, 'vlan_action': {'cos_1': 3, 'vlan_1': 3000, 'vlan_2': 4000, 'cos_2': 2, 'actions_1': 192, 'actions_2': 32}}}
starting ssh server at localhost:4990
Error creating socket: [Errno 97] Address family not supported by protocol
Will try to reconnect to 172.17.0.2 after 30 secs: True
---------------------------------------------------------------------------

Pls guide how to proceed.

Thanks
Hadem

On Wed, Jun 28, 2017 at 10:04 AM, Iwase Yusuke <iwase.yusu...@gmail.com <mailto:iwase.yusu...@gmail.com>> wrote:

    Hi Pynbiang,

    Mininet does "disable IPv6" with some reason, I guess.
    But on my environment, I can run Mininet with IPv6 enabled.

    To revert "disable IPv6" settings;
    1. Comment inserted line out from "/etc/sysctl.conf" and invoke "sysctl -p" 
to take effect.
       ---
        # Mininet: disable IPv6
       -net.ipv6.conf.all.disable_ipv6 = 1
       -net.ipv6.conf.default.disable_ipv6 = 1
       -net.ipv6.conf.lo.disable_ipv6 = 1
       +#net.ipv6.conf.all.disable_ipv6 = 1
       +#net.ipv6.conf.default.disable_ipv6 = 1
       +#net.ipv6.conf.lo.disable_ipv6 = 1
       ---
    2. Remove "ipv6.disable=1" from "GRUB_CMDLINE_LINUX_DEFAULT" in 
"/etc/default/grub"
        and execute "sudo update-grub" command.
       ---
       -GRUB_CMDLINE_LINUX_DEFAULT="ipv6.disable=1 text "
       +GRUB_CMDLINE_LINUX_DEFAULT="text "
       ---
    3. Reboot.

    Then, confirm IPv6 addresses are assigned to interfaces on your machine.
    e.g.)
    $ ip a
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group 
default qlen 1
         link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
         inet 127.0.0.1/8 <http://127.0.0.1/8> scope host lo
            valid_lft forever preferred_lft forever
         inet6 ::1/128 scope host
            valid_lft forever preferred_lft forever


    Thanks,
    Iwase


    On 2017年06月28日 02:50, Pynbiang Hadem wrote:

        HI Fujimoto,

        Yes, i guess you are right. i have the following lines of code in 
*/etc/sysctl.conf*
        /
        /
        /# Mininet: disable IPv6/
        /net.ipv6.conf.all.disable_ipv6 = 1/
        /net.ipv6.conf.default.disable_ipv6 = 1/
        /net.ipv6.conf.lo.disable_ipv6 = 1/

        And the following code in */etc/default/grub*
        GRUB_DEFAULT=0
        GRUB_HIDDEN_TIMEOUT=0
        GRUB_HIDDEN_TIMEOUT_QUIET=true
        GRUB_TIMEOUT=10
        GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
        GRUB_CMDLINE_LINUX_DEFAULT="ipv6.disable=1 text "
        GRUB_CMDLINE_LINUX=""

        GRUB_SERIAL_COMMAND="serial --unit=0 --speed=9600 --stop=1"

        Is there anything wrong with my settings?.

        Thanks
        Hadem


        On Mon, Jun 26, 2017 at 6:20 AM, Iwase Yusuke <iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com> <mailto:iwase.yusu...@gmail.com
        <mailto:iwase.yusu...@gmail.com>>> wrote:

             Hi Pynbiang,

             Excuse me for jumping in.

             It's just my guess, is IPv6 disabled on your machine?
             Mininet does disable IPv6 automatically on its installation.

        
https://github.com/mininet/mininet/blob/aa8901268dbb04e11d466732a354b3533e0e138e/util/install.sh#L615-L639
        
<https://github.com/mininet/mininet/blob/aa8901268dbb04e11d466732a354b3533e0e138e/util/install.sh#L615-L639>
<https://github.com/mininet/mininet/blob/aa8901268dbb04e11d466732a354b3533e0e138e/util/install.sh#L615-L639
        
<https://github.com/mininet/mininet/blob/aa8901268dbb04e11d466732a354b3533e0e138e/util/install.sh#L615-L639>>

             Could you confirm the IPv6 settings (e.g., "/etc/sysctl.conf" and 
"/etc/default/grub")
             on your machine?

             Thanks,
             Iwase


             On 2017年06月24日 17:17, Pynbiang Hadem wrote:

                 Hi, Fujimoto

                 Tried with as you suggested.
                 sudo ryu-manager ryu/services/protocols/bgp/application.py 
--bgp-app-config-file
                 ryu/services/protocols/bgp/bgp_sample_conf.py

                 However, the output is still the same.

                 what could be the issue?.

                 Thanks
                 Hadem

                 On Fri, Jun 23, 2017 at 5:33 AM, Fujimoto Satoshi 
<satoshi.fujimo...@gmail.com
        <mailto:satoshi.fujimo...@gmail.com>
                 <mailto:satoshi.fujimo...@gmail.com 
<mailto:satoshi.fujimo...@gmail.com>>
        <mailto:satoshi.fujimo...@gmail.com <mailto:satoshi.fujimo...@gmail.com>

                 <mailto:satoshi.fujimo...@gmail.com 
<mailto:satoshi.fujimo...@gmail.com>>>> wrote:

                      Hi, Pynbiang

                      Thank you for sending your log messages!
                      In the messages, I've found:

                          Error creating socket: [Errno 13] Permission denied

                      So, "ryu-manager" may not have authority to use 
well-known port 179,
                      which is used for BGP protocol.

                      Please run your command with "sudo", that is:
                      sudo ryu-manager 
ryu/services/protocols/bgp/application.py --bgp-app-config-file
                      ryu/services/protocols/bgp/bgp_sample_conf.py


                      Thanks,
                      Fujimoto


                      On 2017年06月22日 21:50, Pynbiang Hadem wrote:

                          Hi Fujimoto,

                          *Pls ignore the last mail. I have corrected the 
command as below as
        pointed out by
                     you in one
                          of the other Forum blogs:*
                          ryu-manager ryu/services/protocols/bgp/application.py 
--bgp-app-config-file
                          ryu/services/protocols/bgp/bgp_sample_conf.py

                          *Output:*

                          lzma module is not available
                          Registered VCS backend: git
                          Registered VCS backend: hg
                          Registered VCS backend: svn
                          Registered VCS backend: bzr
                          loading app ryu/services/protocols/bgp/application.py
                          instantiating app 
ryu/services/protocols/bgp/application.py of RyuBGPSpeaker
                          ryu/services/protocols/bgp/bgp_sample_conf.py:1: 
RuntimeWarning: Parent module
                          'bgpspeaker.application' not found while handling 
absolute import
                            import os
                          ryu/services/protocols/bgp/bgp_sample_conf.py:3: 
RuntimeWarning: Parent module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
RF_VPN_V4
                          ryu/services/protocols/bgp/bgp_sample_conf.py:4: 
RuntimeWarning: Parent module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
RF_VPN_V6
                          ryu/services/protocols/bgp/bgp_sample_conf.py:5: 
RuntimeWarning: Parent module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
RF_L2_EVPN
                          ryu/services/protocols/bgp/bgp_sample_conf.py:6: 
RuntimeWarning: Parent module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
RF_VPNV4_FLOWSPEC
                          ryu/services/protocols/bgp/bgp_sample_conf.py:7: 
RuntimeWarning: Parent module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
RF_VPNV6_FLOWSPEC
                          ryu/services/protocols/bgp/bgp_sample_conf.py:8: 
RuntimeWarning: Parent module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
RF_L2VPN_FLOWSPEC
                          ryu/services/protocols/bgp/bgp_sample_conf.py:9: 
RuntimeWarning: Parent module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
EVPN_MAX_ET
                          ryu/services/protocols/bgp/bgp_sample_conf.py:10: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
ESI_TYPE_LACP
                          ryu/services/protocols/bgp/bgp_sample_conf.py:11: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
ESI_TYPE_MAC_BASED
                          ryu/services/protocols/bgp/bgp_sample_conf.py:12: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
EVPN_ETH_AUTO_DISCOVERY
                          ryu/services/protocols/bgp/bgp_sample_conf.py:13: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
EVPN_MAC_IP_ADV_ROUTE
                          ryu/services/protocols/bgp/bgp_sample_conf.py:14: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
TUNNEL_TYPE_VXLAN
                          ryu/services/protocols/bgp/bgp_sample_conf.py:15: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
EVPN_MULTICAST_ETAG_ROUTE
                          ryu/services/protocols/bgp/bgp_sample_conf.py:16: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
EVPN_ETH_SEGMENT
                          ryu/services/protocols/bgp/bgp_sample_conf.py:17: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
EVPN_IP_PREFIX_ROUTE
                          ryu/services/protocols/bgp/bgp_sample_conf.py:18: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
FLOWSPEC_FAMILY_IPV4
                          ryu/services/protocols/bgp/bgp_sample_conf.py:19: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
FLOWSPEC_FAMILY_IPV6
                          ryu/services/protocols/bgp/bgp_sample_conf.py:20: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
FLOWSPEC_FAMILY_VPNV4
                          ryu/services/protocols/bgp/bgp_sample_conf.py:21: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
FLOWSPEC_FAMILY_VPNV6
                          ryu/services/protocols/bgp/bgp_sample_conf.py:22: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
FLOWSPEC_FAMILY_L2VPN
                          ryu/services/protocols/bgp/bgp_sample_conf.py:23: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
FLOWSPEC_TA_SAMPLE
                          ryu/services/protocols/bgp/bgp_sample_conf.py:24: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
FLOWSPEC_TA_TERMINAL
                          ryu/services/protocols/bgp/bgp_sample_conf.py:25: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
FLOWSPEC_VLAN_POP
                          ryu/services/protocols/bgp/bgp_sample_conf.py:26: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
FLOWSPEC_VLAN_PUSH
                          ryu/services/protocols/bgp/bgp_sample_conf.py:27: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
FLOWSPEC_VLAN_SWAP
                          ryu/services/protocols/bgp/bgp_sample_conf.py:28: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
FLOWSPEC_VLAN_RW_INNER
                          ryu/services/protocols/bgp/bgp_sample_conf.py:29: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
FLOWSPEC_VLAN_RW_OUTER
                          ryu/services/protocols/bgp/bgp_sample_conf.py:30: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
FLOWSPEC_TPID_TI
                          ryu/services/protocols/bgp/bgp_sample_conf.py:31: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import 
FLOWSPEC_TPID_TO
                          ryu/services/protocols/bgp/bgp_sample_conf.py:32: 
RuntimeWarning: Parent
        module
                          'bgpspeaker.application' not found while handling 
absolute import
                            from ryu.services.protocols.bgp.bgpspeaker import
        REDUNDANCY_MODE_SINGLE_ACTIVE
                          API method core.start called with args: {'router_id': 
'172.17.0.1',
        'label_range':
                     (100,
                          100000), 'waiter': <ryu.lib.hub.Event object at 
0xb59c38ac>,
        'bgp_server_port': 179,
                          'local_as': 65001, 'allow_local_as_in_count': 0, 
'refresh_stalepath_time': 0,
                     'cluster_id':
                          None, 'local_pref': 100, 'refresh_max_eor_time': 0}
                          Error creating socket: [Errno 13] Permission denied
                          Error creating socket: [Errno 97] Address family not 
supported by protocol
                          hub: uncaught exception: Traceback (most recent call 
last):
                            File 
"/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line 60,
        in _launch
                              return func(*args, **kwargs)
                            File
        
"/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/base.py",
                     line 255,
                          in start
                              self._run(*args, **kwargs)
                            File
        
"/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/core.py",
                     line 235,
                          in _run
                              server_thread.wait()
                          AttributeError: 'NoneType' object has no attribute 
'wait'

                          API method neighbor.create called with args: 
{'connect_mode': 'both',
                     'cap_mbgp_evpn': False,
                          'remote_as': 65002, 'cap_mbgp_vpnv6': True, 
'cap_mbgp_l2vpnfs': False,
                          'cap_four_octet_as_number': True, 'cap_mbgp_ipv6': 
True,
        'is_next_hop_self': False,
                          'cap_mbgp_ipv4': True, 'cap_mbgp_ipv4fs': False,
        'is_route_reflector_client': False,
                          'cap_mbgp_ipv6fs': False, 'is_route_server_client': 
False,
        'cap_enhanced_refresh':
                     False,
                          'peer_next_hop': None, 'password': None, 
'ip_address': '172.17.0.2',
                     'cap_mbgp_vpnv4fs':
                          False, 'cap_mbgp_vpnv4': True, 'cap_mbgp_vpnv6fs': 
False}
                          API method neighbor.create called with args: 
{'connect_mode': 'both',
                     'cap_mbgp_evpn': True,
                          'remote_as': 65001, 'cap_mbgp_vpnv6': False, 
'cap_mbgp_l2vpnfs': False,
                          'cap_four_octet_as_number': True, 'cap_mbgp_ipv6': 
False,
        'is_next_hop_self': False,
                          'cap_mbgp_ipv4': True, 'cap_mbgp_ipv4fs': False,
        'is_route_reflector_client': False,
                          'cap_mbgp_ipv6fs': False, 'is_route_server_client': 
False,
        'cap_enhanced_refresh':
                     False,
                          'peer_next_hop': None, 'password': None, 
'ip_address': '172.17.0.3',
                     'cap_mbgp_vpnv4fs':
                          False, 'cap_mbgp_vpnv4': False, 'cap_mbgp_vpnv6fs': 
False}
                          API method neighbor.create called with args: 
{'connect_mode': 'both',
                     'cap_mbgp_evpn': False,
                          'remote_as': 65001, 'cap_mbgp_vpnv6': False, 
'cap_mbgp_l2vpnfs': True,
                          'cap_four_octet_as_number': True, 'cap_mbgp_ipv6': 
False,
        'is_next_hop_self': False,
                          'cap_mbgp_ipv4': True, 'cap_mbgp_ipv4fs': True,
        'is_route_reflector_client': False,
                          'cap_mbgp_ipv6fs': True, 'is_route_server_client': 
False,
        'cap_enhanced_refresh':
                     False,
                          'peer_next_hop': None, 'password': None, 
'ip_address': '172.17.0.4',
                     'cap_mbgp_vpnv4fs': True,
                          'cap_mbgp_vpnv4': False, 'cap_mbgp_vpnv6fs': True}
                          API method vrf.create called with args: 
{'import_rts': ['65001:100'],
                     'route_family': 'ipv4',
                          'site_of_origins': None, 'multi_exit_disc': None, 
'export_rts': ['65001:100'],
                     'route_dist':
                          '65001:100'}
                          API method vrf.create called with args: 
{'import_rts': ['65001:150'],
                     'route_family': 'ipv6',
                          'site_of_origins': None, 'multi_exit_disc': None, 
'export_rts': ['65001:150'],
                     'route_dist':
                          '65001:150'}
                          API method vrf.create called with args: 
{'import_rts': ['65001:200'],
                     'route_family': 'evpn',
                          'site_of_origins': None, 'multi_exit_disc': None, 
'export_rts': ['65001:200'],
                     'route_dist':
                          '65001:200'}
                          API method vrf.create called with args: 
{'import_rts': ['65001:250'],
        'route_family':
                          'ipv4fs', 'site_of_origins': None, 'multi_exit_disc': 
None, 'export_rts':
                     ['65001:250'],
                          'route_dist': '65001:250'}
                          API method vrf.create called with args: 
{'import_rts': ['65001:300'],
        'route_family':
                          'ipv6fs', 'site_of_origins': None, 'multi_exit_disc': 
None, 'export_rts':
                     ['65001:300'],
                          'route_dist': '65001:300'}
                          API method vrf.create called with args: 
{'import_rts': ['65001:350'],
        'route_family':
                          'l2vpnfs', 'site_of_origins': None, 
'multi_exit_disc': None, 'export_rts':
                     ['65001:350'],
                          'route_dist': '65001:350'}
                          API method network.add called with args: {'prefix': 
'10.10.1.0/24
        <http://10.10.1.0/24>
                     <http://10.10.1.0/24> <http://10.10.1.0/24>'}
                          API method prefix.add_local called with args: 
{'prefix': '10.20.1.0/24
        <http://10.20.1.0/24>
                     <http://10.20.1.0/24> <http://10.20.1.0/24>',

                          'next_hop': '172.17.0.1', 'route_dist': '65001:100', 
'route_family': 'ipv4'}
                          API method network.add called with args: {'prefix': 
'2001:db8:1::/64'}
                          API method prefix.add_local called with args: 
{'prefix':
        '2001:db8:2::/64', 'next_hop':
                          '::ffff:172.17.0.1', 'route_dist': '65001:150', 
'route_family': 'ipv6'}
                          API method evpn_prefix.add_local called with args: 
{'route_type': 'eth_ad',
                     'redundancy_mode':
                          'single_active', 'ethernet_tag_id': 4294967295L, 
'next_hop': '0.0.0.0',
        'route_dist':
                          '65001:200', 'esi': {'port_key': 100, 'type': 1, 
'mac_addr':
        'aa:bb:cc:dd:ee:ff'}}
                          API method evpn_prefix.add_local called with args: 
{'ip_addr': '10.30.1.1',
                     'tunnel_type':
                          'vxlan', 'route_type': 'mac_ip_adv', 
'ethernet_tag_id': 0, 'vni': 200,
        'next_hop':
                          '172.17.0.1', 'route_dist': '65001:200', 'mac_addr': 
'aa:bb:cc:dd:ee:ff',
        'esi': 0}
                          API method evpn_prefix.add_local called with args: 
{'route_type':
        'multicast_etag',
                          'route_dist': '65001:200', 'next_hop': '0.0.0.0', 
'ip_addr': '10.40.1.1',
                     'ethernet_tag_id': 0}
                          API method evpn_prefix.add_local called with args: 
{'route_type': 'eth_seg',
                     'route_dist':
                          '65001:200', 'next_hop': '0.0.0.0', 'ip_addr': 
'172.17.0.1', 'esi':
        {'local_disc': 100,
                          'type': 3, 'mac_addr': 'aa:bb:cc:dd:ee:ff'}}
                          API method evpn_prefix.add_local called with args: 
{'ip_prefix':
        '10.50.1.0/24 <http://10.50.1.0/24>
                     <http://10.50.1.0/24>
                          <http://10.50.1.0/24>', 'route_type': 'ip_prefix', 
'ethernet_tag_id': 0,
        'next_hop':
                          '0.0.0.0', 'route_dist': '65001:200', 'gw_ip_addr': 
'172.16.0.1', 'esi': 0}
                          API method flowspec.add called with args: {'rules': 
{'icmp_code': 6,
        'tcp_flags':
                     'SYN+ACK &
                          !=URGENT', 'fragment': 'LF | ==FF', 'dscp': '22 | 
24', 'packet_len': 1000,
                     'icmp_type': 0,
                          'port': '80 | 8000', 'src_port': '>=8500 & <=9000', 
'dst_prefix':
        '10.60.1.0/24 <http://10.60.1.0/24>
                     <http://10.60.1.0/24>
                          <http://10.60.1.0/24>', 'dst_port': '>9000 & <9050', 
'ip_proto': 6,
        'src_prefix':
                          '172.17.0.0/24 <http://172.17.0.0/24> 
<http://172.17.0.0/24>'
        <http://172.17.0.0/24%27>},
                     'flowspec_family': 'ipv4fs', 'actions':
                          {'redirect': {'local_administrator': 100, 
'as_number': 10}, 'traffic_marking':
                     {'dscp': 24},
                          'traffic_rate': {'rate_info': 100.0, 'as_number': 0}, 
'traffic_action':
        {'action': 3}}}
                          API method flowspec.add_local called with args: 
{'rules': {'icmp_code': 6,
        'tcp_flags':
                          'SYN+ACK & !=URGENT', 'fragment': 'LF | ==FF', 
'dscp': '22 | 24',
        'packet_len': 1000,
                          'icmp_type': 0, 'port': '80 | 8000', 'src_port': '>=8500 
& <=9000',
        'dst_prefix':
                          '10.70.1.0/24 <http://10.70.1.0/24> 
<http://10.70.1.0/24>
        <http://10.70.1.0/24>', 'dst_port': '>9000 &
                     <9050', 'ip_proto': 6,
                          'src_prefix': '172.18.0.0/24 <http://172.18.0.0/24>
        <http://172.18.0.0/24>' <http://172.18.0.0/24%27>},

                     'flowspec_family': 'vpnv4fs',

                          'route_dist': '65001:250', 'actions': {'redirect': 
{'local_administrator':
        100,
                     'as_number':
                          10}, 'traffic_marking': {'dscp': 24}, 'traffic_rate': 
{'rate_info': 100.0,
                     'as_number': 0},
                          'traffic_action': {'action': 3}}}
                          API method flowspec.add called with args: {'rules': 
{'icmp_code': 6,
        'tcp_flags':
                     'SYN+ACK &
                          !=URGENT', 'fragment': 'LF | ==FF', 'flow_label': 
100, 'dscp': '22 | 24',
                     'packet_len': 1000,
                          'icmp_type': 0, 'port': '80 | 8000', 'src_port': '>=8500 
& <=9000',
        'dst_prefix':
                          '2001::1/128/32', 'dst_port': '>9000 & <9050', 
'next_header': 6, 'src_prefix':
                     '3001::2/128'},
                          'flowspec_family': 'ipv6fs', 'actions': {'redirect':
        {'local_administrator': 100,
                     'as_number':
                          10}, 'traffic_marking': {'dscp': 24}, 'traffic_rate': 
{'rate_info': 100.0,
                     'as_number': 0},
                          'traffic_action': {'action': 3}}}
                          API method flowspec.add_local called with args: 
{'rules': {'icmp_code': 6,
        'tcp_flags':
                          'SYN+ACK & !=URGENT', 'fragment': 'LF | ==FF', 
'flow_label': 100, 'dscp':
        '22 | 24',
                          'packet_len': 1000, 'icmp_type': 0, 'port': '80 | 
8000', 'src_port':
        '>=8500 & <=9000',
                          'dst_prefix': '2001::1/128/32', 'dst_port': '>9000 & 
<9050', 'next_header': 6,
                     'src_prefix':
                          '3001::2/128'}, 'flowspec_family': 'vpnv6fs', 
'route_dist': '65001:300',
        'actions':
                          {'redirect': {'local_administrator': 100, 
'as_number': 10}, 'traffic_marking':
                     {'dscp': 24},
                          'traffic_rate': {'rate_info': 100.0, 'as_number': 0}, 
'traffic_action':
        {'action': 3}}}
                          API method flowspec.add_local called with args: 
{'rules':
        {'inner_vlan_id': '<3000',
                          'dst_mac': 'BE:EF:C0:FF:EE:DD', 'ether_type': 2048, 
'llc_dsap': 66,
                     'inner_vlan_cos': '<=5',
                          'vlan_id': '>4000', 'llc_ssap': 66, 'vlan_cos': 
'>=3', 'llc_control': 100,
        'snap':
                     74565,
                          'src_mac': '12:34:56:78:90:AB'}, 'flowspec_family': 
'l2vpnfs', 'route_dist':
                     '65001:350',
                          'actions': {'redirect': {'local_administrator': 100, 
'as_number': 10},
        'traffic_rate':
                          {'rate_info': 100.0, 'as_number': 0}, 
'traffic_action': {'action': 3},
                     'traffic_marking':
                          {'dscp': 24}, 'tpid_action': {'tpid_2': 300, 
'tpid_1': 200, 'actions': 49152},
                     'vlan_action':
                          {'cos_1': 3, 'vlan_1': 3000, 'vlan_2': 4000, 'cos_2': 
2, 'actions_1': 192,
                     'actions_2': 32}}}
                          starting ssh server at localhost:4990
                          Error creating socket: [Errno 97] Address family not 
supported by protocol

                          Pls point out the problem in my environment
                          Thanks
                          Hadem


                          
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