Hi Arun, Applications don't have to specify prefix length '/32' for IPv4 addresses so why do they need to explicitly specify it for IPv6? Just as OFP defaults /32 for IPv4, can't it use /128 for IPv6 addresses?
Regards, Vishal. On Thu, May 31, 2018 at 12:56 AM, D Arunprakash <[email protected]> wrote: > Hi Karthikeyan, > > Ipv6 address is 128 bits, which means oxm value length should be 16 bytes > 128. > > > > Normally ipv6 address will be represented with prefix length. (/128). > > > > Used your config flow and just added /128 to the ipv6 src address and > programmed without any issues. > > > > "ipv6-source": > "fe80:0:0:0:f816:3eff:feb4:8492/128" > > > > Config ds dump: > > "flow-node-inventory:table": [ > > { > > "id": 240, > > "flow": [ > > { > > "id": > "Ingress_ICMPv6_392318374877_5_fa:16:3e:b4:84:92_134_LinkLocal_Permit_", > > "table_id": 240, > > "installHw": true, > > "strict": false, > > "flow-name": "ACL", > > "idle-timeout": 0, > > "barrier": false, > > "priority": 63010, > > "hard-timeout": 0, > > "match": { > > "ethernet-match": { > > "ethernet-type": { > > "type": 34525 > > } > > }, > > "ip-match": { > > "ip-protocol": 58 > > }, > > "icmpv6-match": { > > "icmpv6-code": 0, > > "icmpv6-type": 134 > > }, > > > "openflowplugin-extension-general:extension-list": [ > > { > > "extension-key": > "openflowplugin-extension-nicira-match:nxm-nx-reg6-key", > > "extension": { > > > "openflowplugin-extension-nicira-match:nxm-nx-reg": { > > "reg": > "nicira-match:nxm-nx-reg6", > > "mask": 268435200, > > "value": 1280 > > } > > } > > } > > ], > > "ipv6-source": > "fe80:0:0:0:f816:3eff:feb4:8492/128" > > }, > > "cookie": 110100480, > > "instructions": { > > "instruction": [ > > { > > "order": 0, > > "apply-actions": { > > "action": [ > > { > > "order": 0, > > > "openflowplugin-extension-nicira-action:nx-resubmit": { > > "table": 220 > > } > > } > > ] > > } > > } > > ] > > } > > } > > ] > > } > > ] > > > > openstack@ubuntu:~$ flows > > cookie=0x6900000, duration=221.163s, table=240, n_packets=0, n_bytes=0, > priority=63010,icmp6,reg6=0x500/0xfffff00,ipv6_src=fe80::f816:3eff:feb4:8492,icmp_type=134,icmp_code=0 > actions=resubmit(,220) > > > > Regards, > > Arun > > > > From: [email protected] > [mailto:[email protected]] On Behalf Of > Karthikeyan > Sent: Tuesday, May 29, 2018 8:58 PM > To: Vishal Thapar <[email protected]> > Cc: Sridhar Alaparthi <[email protected]>; netvirt-dev > <[email protected]>; > [email protected]; Naveen Manyam Subramanyam > <[email protected]> > Subject: Re: [openflowplugin-dev] OpenflowPlugin: Invalid length for IPv6 > Address in OXM field - Reg > > > > Hi Vishal, > > > > Please find below inventory config DS entry for the same. > > > > http://192.168.56.1:8181/restconf/config/opendaylight-inventory:nodes > > > > > > { > > "id": 240, > > "flow": [ > > { > > "id": > "Ingress_ICMPv6_392318374877_5_fa:16:3e:b4:84:92_134_LinkLocal_Permit_", > > "priority": 63010, > > "table_id": 240, > > "hard-timeout": 0, > > "installHw": true, > > "match": { > > "ethernet-match": { > > "ethernet-type": { > > "type": 34525 > > } > > }, > > "ip-match": { > > "ip-protocol": 58 > > }, > > "icmpv6-match": { > > "icmpv6-code": 0, > > "icmpv6-type": 134 > > }, > > > "openflowplugin-extension-general:extension-list": [ > > { > > "extension-key": > "openflowplugin-extension-nicira-match:nxm-nx-reg6-key", > > "extension": { > > > "openflowplugin-extension-nicira-match:nxm-nx-reg": { > > "reg": > "nicira-match:nxm-nx-reg6", > > "mask": 268435200, > > "value": 1280 > > } > > } > > } > > ], > > "ipv6-source": > "fe80:0:0:0:f816:3eff:feb4:8492" > > }, > > "strict": false, > > "cookie": 110100480, > > "flow-name": "ACL", > > "instructions": { > > "instruction": [ > > { > > "order": 0, > > "apply-actions": { > > "action": [ > > { > > "order": 0, > > > "openflowplugin-extension-nicira-action:nx-resubmit": { > > "table": 220 > > } > > } > > ] > > } > > } > > ] > > }, > > "idle-timeout": 0, > > "barrier": false > > } > > > > Thanks & Regards, > > Karthikeyan. > > > > On Tue, May 29, 2018 at 7:17 PM, Vishal Thapar <[email protected]> wrote: > > Hi Karthik, > > Can you also share the flow being added to config DS? > > Regards, > Vishal. > > > On Tue, May 29, 2018 at 6:16 PM, Karthikeyan > <[email protected]> wrote: >> Hi OpenflowPlugin/Netvirt Team, >> >> I am trying to add IPv6 address as a source address of one of the match >> criteria in while constructing openflow from netvirt project and observed >> that IPv6 source address field (OXM) length is going with 32 bits instead >> of >> 128 bits as a result expected flow is not getting programmed in OVS >> switch. >> Please find attached tcpdump file for getting exact OFPT_FLOW_MOD request >> which has sent from ODL controller. >> >> Please let me know whether this issue is already existing in the openflow >> plugin project or it is new one. >> >> >> Wrong length value for IPv6 value: >> >> OXM field >> Class: OFPXMC_OPENFLOW_BASIC (0x8000) >> 0011 010. = Field: OFPXMT_OFB_IPV6_SRC (26) >> .... ...1 = Has mask: True >> Length: 32 >> Value: fe80::f816:3eff:feb4:8492 >> Mask: ffff:ffff:ffff:ffff:: >> >> >> Manually i tried adding expected open flow as below and looks like OVS >> switch is accepting. This gives the confirmation for problem is existing >> on >> Openflow plugin project. >> >> sudo ovs-ofctl -O OpenFlow13 add-flow br-int "table=240, n_packets=0, >> n_bytes=0, >> >> priority=63010,icmp6,reg6=0x100/0xfffff00,icmp_type=134,icmp_code=0,ipv6_src=fe80:0:0:0:f816:3eff:fe05:e3ec >> actions=resubmit(,220)" >> >> >> >> Tested Environment Details: >> >> ODL Version: Fluorine (Master) >> >> OVS Version: 2.9.0 (Protocol OF 1.3) >> Openstack Version: Pike >> >> >> >> Note: >> Please apply the below filter to get only for IPv6 address filed as a >> source >> address. >> >> Apply filter : (Wireshark) >> openflow_v4.type == 14 && openflow_v4.flowmod.table_id == 240 && >> openflow_v4.oxm.field == 29 && openflow_v4.oxm.field == 26 && >> openflow_v4.oxm.value == 86 >> >> >> Thanks & Regards, >> Karthikeyan. >> >> >> > >> _______________________________________________ >> openflowplugin-dev mailing list >> [email protected] >> https://lists.opendaylight.org/mailman/listinfo/openflowplugin-dev >> > > _______________________________________________ openflowplugin-dev mailing list [email protected] https://lists.opendaylight.org/mailman/listinfo/openflowplugin-dev
