ConfD User Community

Help regarding confd oper state filling for a list of items which is of another structure

Could you please help me with an example to fill oper state for a element like which is a list of sids which have other set of elements.

grouping isis-lsdb-prefix-sid-state {
    description
      "This grouping defines ISIS Prefix SID.";

    container prefix-sid {
      description
        "This container defines segment routing extensions for prefixes.";

      reference
        "draft-ietf-isis-segment-routing-extensions. sub-TLV 3: TLV 135, 235,
        236, 237.";

      list sid {
        description
         "Prefix Segment-ID list. IGP-Prefix Segment is an IGP segment attached
         to an IGP prefix. An IGP-Prefix Segment is global (unless explicitly
         advertised otherwise) within the SR/IGP domain.";

        container state {
          description
            "State parameters for Prefix-SID.";

          uses isis-lsdb-subtlv-type-state;

          leaf value {
            type uint32;
            description
              "IGP Prefix-SID value.";
          }

          leaf-list flags {
            type enumeration {
              enum READVERTISEMENT {
                description
                  "Readvertisment flag. When set, the prefix to which this
                  Prefix-SID is attached, has been propagated by the router      
                  either from another level or from redistribution.";
              }
              enum NODE {
                description
                  "Node flag. When set, the Prefix-SID refers to the router
                  identified by the prefix. Typically, the N-Flag is set on
                  Prefix-SIDs attached to a router loopback address.";
              }
              enum PHP {
                description
                  "Penultimate-Hop-Popping flag. When set, then the penultimate
                  hop MUST NOT pop the Prefix-SID before delivering the packet
                  to the node that advertised the Prefix-SID.";
              }
              enum EXPLICIT_NULL {
                description
                  "Explicit-Null flag. When set, any upstream neighbor of the
                  Prefix-SID originator MUST replace the Prefix-SID with a
                  Prefix-SID having an Explicit-NULL value (0 for IPv4 and 2 for
                  IPv6) before forwarding the packet.";
              }
              enum VALUE {
                description
                  "Value flag. When set, the Prefix-SID carries a value (instead
                  of an index). By default the flag is UNSET.";
              }
              enum LOCAL {
                description
                  "Local flag. When set, the value/index carried by the
                  Prefix-SID has local significance. By default the flag is
                  UNSET.";
              }
            }
            description
              "Flags associated with Prefix Segment-ID.";
          }
          leaf algorithm {
            type uint8;
            description
              "Prefix-SID algorithm to be used for path computation.";
          }
        }
      }
    }
  }

Not sure what you mean by “fill oper state”. If you look at Chapter 8 (ConfD User Guide), operational data are returned by callpoint (data provider) or they can be stored in CDB (cdb-oper) - section 8.8.

I guess you should use the grouping isis-lsdb-prefix-sid-state in your datamodel in config false part of datamodel and then implement dataprovider (callbacks) or store data into CDB as cdb-oper data.

If you have an openconfig setup like similar to this:

module: openconfig-network-instance
  +--rw network-instances
     +--rw network-instance* [name]
        +--rw name                       -> ../config/name
        +--rw config
        |  +--rw name?                       string
        +--rw protocols
           +--rw protocol* [identifier name]
              +--rw identifier          -> ../config/identifier
              +--rw name                -> ../config/name
              +--rw config
              |  +--rw identifier?       identityref
              |  +--rw name?             string
              +--rw isis
              |  +--rw levels
              |  |  +--rw level* [level-number]
              |  |     +--rw level-number             -> ../config/level-number
              |  |     +--rw config
              |  |     |  +--rw level-number?           oc-isis-types:level-number
              |  |     +--ro link-state-database
              |  |     |  +--ro lsp* [lsp-id]
              |  |     |     +--ro lsp-id            -> ../state/lsp-id
              |  |     |     +--ro state
              |  |     |     |  +--ro lsp-id?                   oc-isis-types:lsp-id
              |  |     |     +--ro tlvs
              |  |     |     |  +--ro tlv* [type]
              |  |     |     |     +--ro type                          -> ../state/type
              |  |     |     |     +--ro state
              |  |     |     |     |  +--ro type?   identityref
              |  |     |     |     +--ro extended-ipv4-reachability
              |  |     |     |     |  +--ro prefixes
              |  |     |     |     |     +--ro prefix* [prefix]
              |  |     |     |     |        +--ro prefix               -> ../state/prefix
              |  |     |     |     |        +--ro state
              |  |     |     |     |        |  +--ro prefix?    inet:ipv4-prefix
              |  |     |     |     |        +--ro subtlvs
              |  |     |     |     |        |  +--ro subtlv* [type]
              |  |     |     |     |        |     +--ro type                     -> ../state/type
              |  |     |     |     |        |     +--ro state
              |  |     |     |     |        |     |  +--ro type?   identityref
              |  |     |     |     |        |     +--ro prefix-sids
              |  |     |     |     |        |        +--ro prefix-sid* [value]
              |  |     |     |     |        |           +--ro value    -> ../state/value
              |  |     |     |     |        |           +--ro state
              |  |     |     |     |        |              +--ro value?       uint32
              |  |     |     |     |        |              +--ro flags*       enumeration
              |  |     |     |     |        |              +--ro algorithm?   uint8

The easiest way to add configuration and operational state data is to use an XML file similar to this one (for the above use case):

$ cat my-cfg-and-oper-data.xml
<config xmlns="http://tail-f.com/ns/config/1.0">
  <network-instances xmlns="http://openconfig.net/yang/network-instance">
    <network-instance>
      <name>test</name>
      <config>
        <name>test</name>
      </config>
      <inter-instance-policies>
        <apply-policy>
          <state>
            <default-import-policy>REJECT_ROUTE</default-import-policy>
            <default-export-policy>REJECT_ROUTE</default-export-policy>
          </state>
        </apply-policy>
      </inter-instance-policies>
      <protocols>
        <protocol>
          <identifier xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:ISIS</identifier>
          <name>test</name>
          <config>
            <identifier xmlns:oc-pol-types="http://openconfig.net/yang/policy-types">oc-pol-types:ISIS</identifier>
            <name>test</name>
          </config>
          <isis>
            <global>
              <state>
                <authentication-check>true</authentication-check>
                <instance>0</instance>
                <maximum-area-addresses>3</maximum-area-addresses>
                <level-capability>LEVEL_1_2</level-capability>
                <poi-tlv>false</poi-tlv>
                <iid-tlv>false</iid-tlv>
                <fast-flooding>true</fast-flooding>
              </state>
              <lsp-bit>
                <overload-bit>
                  <state>
                    <set-bit>false</set-bit>
                    <set-bit-on-boot>false</set-bit-on-boot>
                    <advertise-high-metric>false</advertise-high-metric>
                  </state>
                </overload-bit>
                <attached-bit>
                  <state>
                    <ignore-bit>false</ignore-bit>
                    <suppress-bit>false</suppress-bit>
                  </state>
                </attached-bit>
              </lsp-bit>
              <nsr>
                <state>
                  <enabled>false</enabled>
                </state>
              </nsr>
              <graceful-restart>
                <state>
                  <enabled>false</enabled>
                </state>
              </graceful-restart>
              <timers>
                <state>
                  <lsp-lifetime-interval>1200</lsp-lifetime-interval>
                </state>
                <spf>
                  <state>
                    <spf-hold-interval>5000</spf-hold-interval>
                  </state>
                </spf>
              </timers>
              <mpls>
                <igp-ldp-sync>
                  <state>
                    <enabled>true</enabled>
                  </state>
                </igp-ldp-sync>
              </mpls>
              <inter-level-propagation-policies>
                <level1-to-level2>
                  <state>
                    <default-import-policy>REJECT_ROUTE</default-import-policy>
                  </state>
                </level1-to-level2>
                <level2-to-level1>
                  <state>
                    <default-import-policy>REJECT_ROUTE</default-import-policy>
                  </state>
                </level2-to-level1>
              </inter-level-propagation-policies>
            </global>
            <levels>
              <level>
                <level-number>1</level-number>
                <config>
                  <level-number>1</level-number>
                </config>
                <state>
                  <enabled>false</enabled>
                  <authentication-check>true</authentication-check>
                </state>
                <link-state-database>
                  <lsp>
                    <lsp-id>1111.1111.1111.11-11</lsp-id>
                    <state>
                      <lsp-id>1111.1111.1111.11-11</lsp-id>
                      <version>1</version>
                      <version2>1</version2>
                    </state>
                    <tlvs>
                      <tlv>
                        <type xmlns:oc-isis-lsdb-types="http://openconfig.net/yang/isis-lsdb-types">oc-isis-lsdb-types:EXTENDED_IPV4_REACHABILITY</type>
                        <state>
                          <type xmlns:oc-isis-lsdb-types="http://openconfig.net/yang/isis-lsdb-types">oc-isis-lsdb-types:EXTENDED_IPV4_REACHABILITY</type>
                        </state>
                        <extended-ipv4-reachability>
                          <prefixes>
                            <prefix>
                              <prefix>35.0.0.0/8</prefix>
                              <state>
                                <prefix>35.0.0.0/8</prefix>
                              </state>
                              <subtlvs>
                                <subtlv>
                                  <type xmlns:oc-isis-lsdb-types="http://openconfig.net/yang/isis-lsdb-types">oc-isis-lsdb-types:IP_REACHABILITY_SUBTLVS_TYPE</type>
                                  <state>
                                    <type xmlns:oc-isis-lsdb-types="http://openconfig.net/yang/isis-lsdb-types">oc-isis-lsdb-types:IP_REACHABILITY_SUBTLVS_TYPE</type>
                                  </state>
                                  <prefix-sids>
                                    <prefix-sid>
                                      <value>1</value>
                                      <state>
                                        <flags>READVERTISEMENT</flags>
                                        <flags>NODE</flags>
                                        <algorithm>1</algorithm>
                                      </state>
                                    </prefix-sid>
                                  </prefix-sids>
                                </subtlv>
                              </subtlvs>
                            </prefix>
                          </prefixes>
                        </extended-ipv4-reachability>
                      </tlv>
                    </tlvs>
                  </lsp>
                </link-state-database>
                <traffic-engineering>
                  <state>
                    <enabled>false</enabled>
                  </state>
                </traffic-engineering>
                <authentication>
                  <state>
                    <csnp-authentication>false</csnp-authentication>
                    <psnp-authentication>false</psnp-authentication>
                    <lsp-authentication>false</lsp-authentication>
                  </state>
                </authentication>
              </level>
            </levels>
          </isis>
        </protocol>
      </protocols>
    </network-instance>
  </network-instances>
</config>

Now we can use maapi to first load the config:

$ confd_load -dd -o -m -l my-cfg-and-oper-data.xml
TRACE Connected (maapi) to ConfD
starting user session ctxt=system user=system groups=[system]
TRACE MAAPI_START_USER_SESSION  --> CONFD_OK
TRACE MAAPI_START_TRANS  --> CONFD_OK
TRACE MAAPI_LOAD_CONFIG_FILE  --> CONFD_OK
TRACE MAAPI_APPLY_TRANS  --> CONFD_OK
TRACE MAAPI_END_USER_SESSION  --> CONFD_OK

And then load the state (config false) data:

$ confd_load -dd -O -m -l my-cfg-and-oper-data.xml
TRACE Connected (maapi) to ConfD
starting user session ctxt=system user=system groups=[system]
TRACE MAAPI_START_USER_SESSION  --> CONFD_OK
TRACE MAAPI_START_TRANS  --> CONFD_OK
TRACE MAAPI_LOAD_CONFIG_FILE  --> CONFD_OK
TRACE MAAPI_APPLY_TRANS  --> CONFD_OK
TRACE MAAPI_END_USER_SESSION  --> CONFD_OK

You can of of course use maapi_set / maapi_create / maapi_set_values / cdb_set_values etc if you wish. Here an example using maapi_delete() maapi_set() and maapi_create():

confd_cmd -dd  -c 'mdel /network-instances; mcreate /network-instances/network-instance{test}; mset /network-instances/network-instance{test}/config/name test; mcreate "/network-instances/network-instance{test}/protocols/protocol{ISIS test}"; mset "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/config/identifier" ISIS; mset "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/config/name" test; mcreate "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}"; mset "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}/config/level-number" 1'
confd_cmd -dd -o -c 'mdel "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}/link-state-database"; mcreate "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}/link-state-database/lsp{1111.1111.1111.11-11}"; mset "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}/link-state-database/lsp{1111.1111.1111.11-11}/state/lsp-id" 1111.1111.1111.11-11; mcreate "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}/link-state-database/lsp{1111.1111.1111.11-11}/tlvs/tlv{EXTENDED_IPV4_REACHABILITY}"; mset "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}/link-state-database/lsp{1111.1111.1111.11-11}/tlvs/tlv{EXTENDED_IPV4_REACHABILITY}/state/type" EXTENDED_IPV4_REACHABILITY;mcreate "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}/link-state-database/lsp{1111.1111.1111.11-11}/tlvs/tlv{EXTENDED_IPV4_REACHABILITY}/extended-ipv4-reachability/prefixes/prefix{35.0.0.0/8}"; mset "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}/link-state-database/lsp{1111.1111.1111.11-11}/tlvs/tlv{EXTENDED_IPV4_REACHABILITY}/extended-ipv4-reachability/prefixes/prefix{35.0.0.0/8}/state/prefix" 35.0.0.0/8; mcreate "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}/link-state-database/lsp{1111.1111.1111.11-11}/tlvs/tlv{EXTENDED_IPV4_REACHABILITY}/extended-ipv4-reachability/prefixes/prefix{35.0.0.0/8}/subtlvs/subtlv{IP_REACHABILITY_SUBTLVS_TYPE}"; mset "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}/link-state-database/lsp{1111.1111.1111.11-11}/tlvs/tlv{EXTENDED_IPV4_REACHABILITY}/extended-ipv4-reachability/prefixes/prefix{35.0.0.0/8}/subtlvs/subtlv{IP_REACHABILITY_SUBTLVS_TYPE}/state/type" IP_REACHABILITY_SUBTLVS_TYPE; mcreate "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}/link-state-database/lsp{1111.1111.1111.11-11}/tlvs/tlv{EXTENDED_IPV4_REACHABILITY}/extended-ipv4-reachability/prefixes/prefix{35.0.0.0/8}/subtlvs/subtlv{IP_REACHABILITY_SUBTLVS_TYPE}/prefix-sids/prefix-sid{1}"; mset "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}/link-state-database/lsp{1111.1111.1111.11-11}/tlvs/tlv{EXTENDED_IPV4_REACHABILITY}/extended-ipv4-reachability/prefixes/prefix{35.0.0.0/8}/subtlvs/subtlv{IP_REACHABILITY_SUBTLVS_TYPE}/prefix-sids/prefix-sid{1}/state/algorithm" 1; mcreate "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}/link-state-database/lsp{1111.1111.1111.11-11}/tlvs/tlv{EXTENDED_IPV4_REACHABILITY}/extended-ipv4-reachability/prefixes/prefix{35.0.0.0/8}/subtlvs/subtlv{IP_REACHABILITY_SUBTLVS_TYPE}/prefix-sids/prefix-sid{1}/state/flags{READVERTISEMENT}"; mcreate "/network-instances/network-instance{test}/protocols/protocol{ISIS test}/isis/levels/level{1}/link-state-database/lsp{1111.1111.1111.11-11}/tlvs/tlv{EXTENDED_IPV4_REACHABILITY}/extended-ipv4-reachability/prefixes/prefix{35.0.0.0/8}/subtlvs/subtlv{IP_REACHABILITY_SUBTLVS_TYPE}/prefix-sids/prefix-sid{1}/state/flags{NODE}"'

Thanks Cohult for the pointer. WIll check the above.