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]<mailto:[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]<mailto:[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]<mailto:[email protected]>
> https://lists.opendaylight.org/mailman/listinfo/openflowplugin-dev
>
ipv6_src.pcapng
Description: ipv6_src.pcapng
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