Hi Walid, see my answers below: > On Feb 22, 2016, at 9:15 PM, Walid Aljoby <[email protected]> wrote: > > Hi all, > > First, Sorry to bother with these long questions: > My question consists of two parts about RestConf of meter definition and > meter table fields semantic meaning. > Part 1: > How can I know the necessary fields to be defined inside RestConf XML in > order to be accepted by ODL operational data store? Does > http://localhost:8080/apidoc/explorer/index.html > <http://localhost:8080/apidoc/explorer/index.html> can help to know the > fields should be used? Because when I changed add and delete some xml tags, > sometimes accepted by operational datastore, sometimes not! No operational means switch did not install the meter, this is because: 1) you are constructing wring request or 2) switch does not support the meter configuration. For the first you can check the OF 1.3 spec, for the second you can check the switch (debug, logs, etc).
> Part2: > I got confused between the semantic meaning of the fields defined in the > meter table: So could anyone explain: > 1- the difference between the band rate, and burst size defined inside > meter-band-header on one hand, and on the other hand, the band rate, and > burst size defined in either meter-band-drop, and meter-band-dscp-remark? > 2- difference between meter-band-drop and meter-band-dscp-remark, because I > have seen that server report only limited rate without to tell any packets > drop when I used meter-band-drop? All these fields options are described in the OF1.3 spec. > Thank a lot > -- > Regards > Walid > From: Luis Gomez <[email protected]> > To: Walid Aljoby <[email protected]> > Cc: "[email protected]" > <[email protected]>; "[email protected]" > <[email protected]> > Sent: Sunday, January 10, 2016 4:44 AM > Subject: Re: [openflowplugin-dev] Redirecting OF questions > > Hi Walid, > > Just one comment, by looking at the OF yang models (see below), the IP > address of the ARP target should be > <arp-target-transport-address>10.0.0.2/32</arp-target-transport-address> > > > grouping "arp-match-fields" { > leaf arp-op { > type uint16; > } > > leaf arp-source-transport-address { > description "ARP source IPv4 address."; > type inet:ipv4-prefix; > } > > leaf arp-target-transport-address { > description "ARP target IPv4 address."; > type inet:ipv4-prefix; > } > container arp-source-hardware-address { > description "ARP source hardware address."; > presence "Match field is active and set"; > uses mac-address-filter; > } > container arp-target-hardware-address { > description "ARP target hardware address."; > presence "Match field is active and set"; > uses mac-address-filter; > } > } > > > > > > > > On Jan 8, 2016, at 1:01 AM, Walid Aljoby <[email protected] > > <mailto:[email protected]>> wrote: > > > > Many Thanks Luis. That is true. > > > > 1- I just added /32 to the IP addresses of the flows. > > 2- Create flows for forwarding ARP packets. Why ARP packets? For the hosts > > to reach each other (ping), they will send ICMP packets which need to > > resolve the MAC address of the destination via ARP request-reply. So > > handling ARP flows are very important to enable the hosts send ICMP packets > > or reach each other. > > > > The format of ARP flow is same as below, with a little bit change: > > Match: > > <type>2054</type> // the Ethertype of ARP protocol > > <ipv4-destination>10.0.0.2/32</ipv4-destination> // IP address of ARP > > target address > > > > Action: > > <output-node-connector>2</output-node-connector> // output port > > > > ---- > > Regards > > Walid > > From: Luis Gomez <[email protected] <mailto:[email protected]>> > > To: Walid Aljoby <[email protected] <mailto:[email protected]>> > > Cc: "[email protected] > > <mailto:[email protected]>" > > <[email protected] > > <mailto:[email protected]>>; "[email protected] > > <mailto:[email protected]>" <[email protected] > > <mailto:[email protected]>> > > Sent: Friday, January 8, 2016 10:01 AM > > Subject: Re: [openflowplugin-dev] Redirecting OF questions > > > > So very quickly, I see 2 issues with these flows: > > > > 1) You are using wrong mask /8 when configuring the src and dst IP in the > > flows, it should be /32. > > 2) You also need extra flows to handle host ARP packets (unless you use > > static ARP entries in the hosts). > > > > BR/Luis > > > > > >> On Jan 7, 2016, at 5:25 PM, Walid Aljoby <[email protected] > >> <mailto:[email protected]>> wrote: > >> > >> Hi Luis, > >> > >> Many thanks Daniel for your usual help! > >> > >> Yes Luis. Actually I don't want to use odl-l2switch to take care of > >> network flow. So What I did is as follows: > >> > >> 1- Mininet: sudo mn --topo single,3 --mac --switch=ovsk > >> --controller=remote,ip=192.168.56.101 > >> 2- Configured ODL karaf with only this feature: odl-openflowplugin, for > >> purpose of communication between the network and the controller. Now the > >> connection is valid. > >> 3- Situation: I wanted those three hosts connected to the switch ping each > >> other. So to achieve that I pushed some flows using RestConf API, but I > >> got into some inconsistency between Config and Operation data stores, as > >> follows: > >> > >> In summary, two flows are added between host 1 and host 2. > >> ---------------------------------------------------------------------------- > >> Config Data store > >> > >> This XML file does not appear to have any style information associated > >> with it. The document tree is shown below. > >> <table xmlns="urn:opendaylight:flow:inventory"> > >> <id>0</id> > >> <flow> > >> <id>2</id> > >> <match> > >> <ipv4-source>10.0.0.2/8</ipv4-source> > >> <ipv4-destination>10.0.0.1/8</ipv4-destination> > >> <ethernet-match> > >> <ethernet-type> > >> <type>2048</type> > >> </ethernet-type> > >> </ethernet-match> > >> </match> > >> <table_id>0</table_id> > >> <priority>10</priority> > >> <idle-timeout>0</idle-timeout> > >> <flow-name>h2-h1</flow-name> > >> <instructions> > >> <instruction> > >> <order>0</order> > >> <apply-actions> > >> <action> > >> <order>0</order> > >> <output-action> > >> <output-node-connector>1</output-node-connector> > >> </output-action> > >> </action> > >> </apply-actions> > >> </instruction> > >> </instructions> > >> <hard-timeout>0</hard-timeout> > >> </flow> > >> <flow> > >> <id>1</id> > >> <match> > >> <ipv4-source>10.0.0.1/8</ipv4-source> > >> <ipv4-destination>10.0.0.2/8</ipv4-destination> > >> <ethernet-match> > >> <ethernet-type> > >> <type>2048</type> > >> </ethernet-type> > >> </ethernet-match> > >> </match> > >> <table_id>0</table_id> > >> <priority>10</priority> > >> <idle-timeout>0</idle-timeout> > >> <flow-name>h1-h2</flow-name> > >> <instructions> > >> <instruction> > >> <order>0</order> > >> <apply-actions> > >> <action> > >> <order>0</order> > >> <output-action> > >> <output-node-connector>2</output-node-connector> > >> </output-action> > >> </action> > >> </apply-actions> > >> </instruction> > >> </instructions> > >> <hard-timeout>0</hard-timeout> > >> </flow> > >> </table> > >> > >> ---------------------------------------------------------------------------- > >> Operational data store: > >> > >> This XML file does not appear to have any style information associated > >> with it. The document tree is shown below. > >> <table xmlns="urn:opendaylight:flow:inventory"> > >> <id>0</id> > >> <aggregate-flow-statistics xmlns="urn:opendaylight:flow:statistics"> > >> <packet-count>0</packet-count> > >> <flow-count>1</flow-count> > >> <byte-count>0</byte-count> > >> </aggregate-flow-statistics> > >> <flow> > >> <id>2</id> > >> <match> > >> <ipv4-source>10.0.0.2/32</ipv4-source> > >> <ipv4-destination>10.0.0.1/32</ipv4-destination> > >> <ethernet-match> > >> <ethernet-type> > >> <type>2048</type> > >> </ethernet-type> > >> </ethernet-match> > >> </match> > >> <table_id>0</table_id> > >> <priority>10</priority> > >> <cookie>0</cookie> > >> <idle-timeout>0</idle-timeout> > >> <instructions> > >> <instruction> > >> <order>0</order> > >> <apply-actions> > >> <action> > >> <order>0</order> > >> <output-action> > >> <output-node-connector>1</output-node-connector> > >> <max-length>0</max-length> > >> </output-action> > >> </action> > >> </apply-actions> > >> </instruction> > >> </instructions> > >> <flow-statistics xmlns="urn:opendaylight:flow:statistics"> > >> <packet-count>0</packet-count> > >> <duration> > >> <nanosecond>353000000</nanosecond> > >> <second>335</second> > >> </duration> > >> <byte-count>0</byte-count> > >> </flow-statistics> > >> <hard-timeout>0</hard-timeout> > >> </flow> > >> <flow> > >> <id>1</id> > >> <match> > >> <ipv4-source>10.0.0.0/8</ipv4-source> > >> <ipv4-destination>10.0.0.0/8</ipv4-destination> > >> <ethernet-match> > >> <ethernet-type> > >> <type>2048</type> > >> </ethernet-type> > >> </ethernet-match> > >> </match> > >> <table_id>0</table_id> > >> <priority>10</priority> > >> <cookie>0</cookie> > >> <idle-timeout>0</idle-timeout> > >> <instructions> > >> <instruction> > >> <order>0</order> > >> <apply-actions> > >> <action> > >> <order>0</order> > >> <output-action> > >> <output-node-connector>1</output-node-connector> > >> <max-length>0</max-length> > >> </output-action> > >> </action> > >> </apply-actions> > >> </instruction> > >> </instructions> > >> <flow-statistics xmlns="urn:opendaylight:flow:statistics"> > >> <packet-count>0</packet-count> > >> <duration> > >> <nanosecond>753000000</nanosecond> > >> <second>91</second> > >> </duration> > >> <byte-count>0</byte-count> > >> </flow-statistics> > >> <hard-timeout>0</hard-timeout> > >> </flow> > >> <flow-hash-id-map> > >> <hash> > >> Match [_ethernetMatch=EthernetMatch [_ethernetType=EthernetType > >> [_type=EtherType [_value=2048], augmentation=[]], augmentation=[]], > >> _layer3Match=Ipv4Match [_ipv4Destination=Ipv4Prefix [_value=10.0.0.0/8], > >> _ipv4Source=Ipv4Prefix [_value=10.0.0.0/8], augmentation=[]], > >> augmentation=[]]100 > >> </hash> > >> <flow-id>1</flow-id> > >> </flow-hash-id-map> > >> <flow-table-statistics xmlns="urn:opendaylight:flow:table:statistics"> > >> <active-flows>1</active-flows> > >> <packets-matched>296020</packets-matched> > >> <packets-looked-up>296038</packets-looked-up> > >> </flow-table-statistics> > >> </table> > >> ---------------------------------------------------------------------------- > >> This is in mininet terminal: > >> > >> mininet@mininet-vm <mailto:mininet@mininet-vm>:~$ sudo ovs-ofctl > >> dump-flows s1 > >> NXST_FLOW reply (xid=0x4): > >> cookie=0x0, duration=76.928s, table=0, n_packets=0, n_bytes=0, > >> idle_age=76, priority=10,ip,nw_src=10.0.0.0/8,nw_dst=10.0.0.0/8 > >> actions=output:1 > >> > >> > >> I am not clear why flow 1 is inconsistent in Confing and Operation data > >> stores. > >> > >> > >> Many thanks for your willing to help, and enthusiasm. > >> > >> > >> --- > >> Regards > >> Walid > >> > >> > >> From: Luis Gomez <[email protected] <mailto:[email protected]>> > >> To: Daniel Farrell <[email protected] <mailto:[email protected]>> > >> Cc: Walid Aljoby <[email protected] <mailto:[email protected]>>; > >> [email protected] > >> <mailto:[email protected]> > >> Sent: Friday, January 8, 2016 8:31 AM > >> Subject: Re: [openflowplugin-dev] Redirecting OF questions > >> > >> Can we get a dump of config and operational flows? > >> > >> BR/Luis > >> > >> > >> > On Jan 7, 2016, at 7:26 AM, Daniel Farrell <[email protected] > >> > <mailto:[email protected]>> wrote: > >> > > >> > Hey OFPlugin devs, > >> > > >> > Directing some (fairly basic) questions to the most relevant experts. > >> > > >> > Thanks, > >> > > >> > Daniel Farrell > >> > Software Engineer, Red Hat SDN Team > >> > https://wiki.opendaylight.org/view/user:dfarrell07 > >> > <https://wiki.opendaylight.org/view/user:dfarrell07> > >> > > >> > ----- Original Message ----- > >> >> > >> >> > >> >> > >> >> Dear Daniel, > >> >> I will be very very grateful if you take a look into these questions: > >> >> I installed odl-l2switch-switch feature and made ping for the hosts > >> >> connected > >> >> to the switch. So it works fine(the hosts can reach(ping) each other).My > >> >> Question: because I want to create my own flow (define the way hosts can > >> >> reach each other), so I have not installed odl-l2switch-switch. Is that > >> >> right way? I just installed odl-openflowplugin. So I have two problems: > >> >> - when I add flows I have some inconsistency between Config and > >> >> Operational > >> >> data stores. > >> >> > >> >> > >> >> 2- the network consists of three hosts connected to one switch, I > >> >> installed > >> >> the rules as show in the photo, but the h1 could not reach h2? > >> >> > >> >> 3- where can I find please the document ion for these openflow tags? > >> >> because > >> >> some of them not found inside Openflow specification document. > >> >> > >> >> Thanks > >> >> Walid > >> >> > >> >> > >> >> From: Walid Aljoby <[email protected] > >> >> <mailto:[email protected]>> > >> >> To: Daniel Farrell <[email protected] <mailto:[email protected]>> > >> >> Sent: Thursday, January 7, 2016 3:11 AM > >> >> Subject: Re: Opendaylight Restconf with Mininet :) > >> >> > >> >> For sure, I am really appreciating your reply Daniel and I understand > >> >> every > >> >> point. By the way, my previous reply was confusing because I thought the > >> >> word "Inline", like (I should ask these question online). Later I find > >> >> your > >> >> answer inline, and realize it.So Many thanks again > >> >> My Best Regards, > >> >> Walid > >> >> > >> >> > >> >> From: Walid Aljoby <[email protected] > >> >> <mailto:[email protected]>> > >> >> To: Daniel Farrell <[email protected] <mailto:[email protected]>> > >> >> Sent: Thursday, January 7, 2016 3:00 AM > >> >> Subject: Re: Opendaylight Restconf with Mininet :) > >> >> > >> >> Many thanks Daniel. Actually I have posted that to ODL discussion > >> >> group, but > >> >> I have not received the reply. Sp because it is kind of urgent question > >> >> to > >> >> pursue work in ODL, I ask you. > >> >> Anyway, your advises and comments are appreciated! > >> >> Thanks > >> >> walid > >> >> > >> >> From: Daniel Farrell <[email protected] > >> >> <mailto:[email protected]>> > >> >> To: Walid Aljoby <[email protected] > >> >> <mailto:[email protected]>> > >> >> Sent: Thursday, January 7, 2016 2:12 AM > >> >> Subject: Re: Opendaylight Restconf with Mininet :) > >> >> > >> >> Inline > >> >> > >> >> Daniel Farrell > >> >> Software Engineer, Red Hat SDN Team > >> >> https://wiki.opendaylight.org/view/user:dfarrell07 > >> >> <https://wiki.opendaylight.org/view/user:dfarrell07> > >> >> > >> >> ----- Original Message ----- > >> >>> Dear Daniel, > >> >>> Wish you had a nice holiday and best of luck for a happy new year, and > >> >>> many > >> >>> thanks to your detailed previous help. > >> >>> > >> >>> I have these questions, I hope please to go through them for > >> >>> double-check > >> >>> and > >> >>> reply: > >> >>> Using pre-built version ODL lithium: > >> >>> > >> >>> 1- I created network with mininet and started to connect with ODL, I > >> >>> find > >> >>> out > >> >>> an error like (unable to connect to controller...). So I fixed it out > >> >>> by > >> >>> (feature:install odl-openflowplugin), So I am not sure why is it > >> >>> necessary > >> >>> to use this openflowplugin feature because my thinking that as long as > >> >>> ODL > >> >>> karaf is running, it should be automatically connected to mininet > >> >>> without > >> >>> any need to install any features.. please how is that CORRECT? > >> >>> > >> >> > >> >> All ODL functionally comes from loaded Karaf features. The default set > >> >> of installed features, a nearly empty Karaf container, only provides > >> >> stuff > >> >> like the ability to SSH into the Karaf shell. > >> >> > >> >> You need ODL's SB OpenFlow logic to talk to MN switches via OF, which > >> >> you > >> >> get by installing openflowplugin* Karaf features. > >> >> > >> >>> > >> >>> > >> >>> 2- I started to learn about Restconf(for example how to push flows > >> >>> using > >> >>> postman and curl linux tools), I have the following confusing problem: > >> >>> I > >> >>> followed these examples: > >> >>> > >> >>> https://wiki.opendaylight.org/view/Editing_OpenDaylight_OpenFlow_Plugin:End_to_End_Flows:Example_Flows, > >> >>> but I have two problems: a- sometimes the flows are displayed on > >> >>> localhost:8181/config/.., but could not be displayed on the switches > >> >>> (Mininet).. b- I have OVS which connect two hosts, I added a > >> >>> rule > >> >>> like if in-port=xm out-port=y in order to enable for example h1 ping > >> >>> h2, > >> >>> but > >> >>> it doesn't work until I added the reverse in-port=y out-port=x. > >> >>> So > >> >>> please let me know the logic, I will be so Happy! > >> >>> > >> >> > >> >> These docs look correct and relevant. > >> >> > >> >> https://wiki.opendaylight.org/view/OpenDaylight_OpenFlow_Plugin:End_to_End_Flows > >> >> > >> >> <https://wiki.opendaylight.org/view/OpenDaylight_OpenFlow_Plugin:End_to_End_Flows> > >> >> > >> >>> > >> >>> > >> >>> 3- My thinking to learn first Restconf then move to MD-SAL, how is that > >> >>> correct? > >> >>> > >> >> > >> >> I don't think it matters much. > >> >> > >> >>> > >> >>> 4- I created specific topology in mininet and I want to install > >> >>> specific > >> >>> flows using curl utility in XML format. So Do is it necessary to > >> >>> create any > >> >>> YANG model or directly install flows according to > >> >>> Opendaylight:inventory? > >> >>> May be the question not clear because I don't understand it very well, > >> >>> but > >> >>> the idea is to install specifc flows for forwarding the packets in my > >> >>> created topology through Restful API..!! > >> >> > >> >> When create flows via POSTs to ODL via RestConf, you're creating entries > >> >> in ODL's MD-SAL config data store. They then get populated to the > >> >> switches, > >> >> and the updated state of the world is reflected in ODL's MD-SAL > >> >> operational > >> >> data store. > >> >> > >> >>> > >> >>> I am very sorry for long email but I am in need for that dear Daniel. I > >> >>> will > >> >>> not forget your help for me at this stage, and I will not annoy much > >> >>> more > >> >>> with my quetions, I need that to push me quickly!!! > >> >> > >> >> Glad to help, but be reminded that the expected/normal/best way to get > >> >> help > >> >> in open source communities is to use the relevant community mailing > >> >> lists. > >> >> You'll find more relevant experts and typically get faster responses. > >> >> > >> >> All the best, > >> >> > >> >>> thank you in advance---- > >> >>> RegardsWalid From: Daniel Farrell <[email protected] > >> >>> <mailto:[email protected]>> > >> >>> To: Walid Aljoby <[email protected] > >> >>> <mailto:[email protected]>> > >> >>> Sent: Wednesday, December 16, 2015 2:35 AM > >> >>> Subject: Re: Learning Opendaylight Application Development > >> >>> > >> >>> Glad to help. :) > >> >>> > >> >>> Daniel Farrell > >> >>> Software Engineer, Red Hat SDN Team > >> >>> https://wiki.opendaylight.org/view/user:dfarrell07 > >> >>> <https://wiki.opendaylight.org/view/user:dfarrell07> > >> >>> > >> >>> ----- Original Message ----- > >> >>>> Dear Daniel, > >> >>>> I don't know how I thank your great help for me. Actually I have > >> >>>> already > >> >>>> looked to the videos in YouTube for less than two minutes each, but I > >> >>>> ignored them because I am not sure whether they help me or just a > >> >>>> wast of > >> >>>> time, but now you are really make me more confident where and how to > >> >>>> start > >> >>>> and dig deep on the ODL learning..Many Many thanks again!! > >> >>>> Wish you all the best in your career and life!! > >> >>>> ---My Best RegardsWalidWaleed Abdulwahab Yahya Al-Gobi | > >> >>>> adsc.illinois.edu > >> >>>> > >> >>>> | | > >> >>>> | | | | | | | | > >> >>>> | Waleed Abdulwahab Yahya Al-Gobi | adsc.illinois.eduWaleed Abdulwahab > >> >>>> | Yahya > >> >>>> | Al-Gobi is a SINGA graduate student who is working with ADSC > >> >>>> Research > >> >>>> | Scientist Richard Ma. | > >> >>>> | | > >> >>>> | View on adsc.illinois.edu | Preview by Yahoo | > >> >>>> | | > >> >>>> | | > >> >>>> > >> >>>> > >> >>>> > >> >>>> From: Daniel Farrell <[email protected] > >> >>>> <mailto:[email protected]>> > >> >>>> To: walid aljoby <[email protected] > >> >>>> <mailto:[email protected]>> > >> >>>> Sent: Wednesday, December 16, 2015 12:14 AM > >> >>>> Subject: Re: Learning Opendaylight Application Development > >> >>>> > >> >>>> Hello Walid, > >> >>>> > >> >>>> Welcome to OpenDaylight! > >> >>>> > >> >>>> The primary source for I'd recommend for learning about ODL app > >> >>>> development is the Controller Core Functionality Tutorials. They > >> >>>> include both a wiki and recorded tutorial sessions from the most > >> >>>> recent OpenDaylight Summit. > >> >>>> > >> >>>> https://wiki.opendaylight.org/view/Controller_Core_Functionality_Tutorials:Application_Development_Tutorial > >> >>>> > >> >>>> <https://wiki.opendaylight.org/view/Controller_Core_Functionality_Tutorials:Application_Development_Tutorial> > >> >>>> > >> >>>> Feel free to ask additional questions, but note in most open source > >> >>>> communities you typically get more helpful and faster responses by > >> >>>> asking on public mailing list, vs directly 1-1. For OpenDaylight, > >> >>>> the Discuss or OpenDaylight Users lists would be best for general > >> >>>> questions like this. > >> >>>> > >> >>>> https://lists.opendaylight.org/mailman/listinfo/discuss > >> >>>> <https://lists.opendaylight.org/mailman/listinfo/discuss> > >> >>>> https://lists.opendaylight.org/mailman/listinfo/opendaylight-users > >> >>>> <https://lists.opendaylight.org/mailman/listinfo/opendaylight-users> > >> >>>> > >> >>>> Hope that helps! Welcome again to ODL! :) > >> >>>> > >> >>>> Daniel Farrell > >> >>>> Software Engineer, Red Hat SDN Team > >> >>>> https://wiki.opendaylight.org/view/user:dfarrell07 > >> >>>> <https://wiki.opendaylight.org/view/user:dfarrell07> > >> >>>> > >> >>>> ----- Original Message ----- > >> >>>>> Dear Sir, > >> >>>>> > >> >>>>> I am PhD student in National University of Singapore. > >> >>>>> Actually, I have only the basics of Java programming. I do not about > >> >>>>> Interactions between XML, YANG , OSGI, REST, these concepts I find it > >> >>>>> in > >> >>>>> Opendaylight software Architecture. > >> >>>>> You as expert in Opendaylight, could you please guide me to the > >> >>>>> effective way of learning Opendaylight for Application Develpment? > >> >>>>> For > >> >>>>> example, links to the effective videos or websites that help me > >> >>>>> build a > >> >>>>> strong knwoledge for develping applications using this software.. > >> >>>>> > >> >>>>> Many thanks in advance > >> >>>>> > >> >>>>> Best Regards > >> >>>>> ---- > >> >>>>> Walid > >> > >> >>>>> > >> >>>> > >> >>>> > >> >>>> > >> >>> > >> >>> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> > _______________________________________________ > >> > openflowplugin-dev mailing list > >> > [email protected] > >> > <mailto:[email protected]> > >> > https://lists.opendaylight.org/mailman/listinfo/openflowplugin-dev > >> > <https://lists.opendaylight.org/mailman/listinfo/openflowplugin-dev> > >> > >> > >> > > > > > > > >
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