About this repository
Data models on Arista EOS
pyang
    About pyang
    yang modules validation
    convert a YANG module into an equivalent YIN module
    Generate a tree representation of YANG modules for quick visualization
pyangbind
    About pyangbind
    pyangbind installation
    converts a YANG module into a Python module
    Use the python module to generate data
gNMI (gRPC Network Management Interface)
    requirements on Arista devices
    install the gNMI command-line client
    interact with Arista devices using gNMI
        Capabilities RPC
        Subscribe RPC
        Get RPC
        Set RPC
        OpenConfig paths and EOS native paths
        device configuration end to end demo
We will use pyang, pyangbind, and gNMI.
We will interact with Arista EOS devices using gNMI.
We will use a gnmi command-line client and the following RPC: capabilites, get, subscribe, set.
They are published on this repository https://github.com/aristanetworks/yang
pyang is a python program.
We can use it to:
- Validate YANG modules against YANG RFCs
- Convert YANG modules into equivalent YIN module (XML)
- Generate a tree representation of YANG models for quick visualization
python -V
Python 3.7.7
pyang installation from pypi
$ pip install pyang
pip freeze | grep pyang
pyang==2.2.1
Example: let's validate the modules "openconfig-bgp.yang" and "openconfig-interfaces.yang" from openconfig github repository
git clone https://github.com/openconfig/public.git
ls public
The YANG modules openconfig-bgp.yang and openconfig-interfaces.yang import other YANG modules: so we need to make sure pyang can find all these yang modules
move all the yang files to the directory yang_modules
mkdir yang_modules
cp public/release/models/*.yang yang_modules/.
cp -R public/release/models/*/*.yang yang_modules/.
ls yang_modules
cd yang_modules
pyang openconfig-bgp.yang
pyang openconfig-interfaces.yang
A YANG module can be translated into an XML syntax called YIN. The translated module is called a YIN module. The YANG and YIN formats contain equivalent information using different notations: YIN is YANG in XML. A YANG module can be translated into YIN syntax without losing any information.
Example (openconfig-bgp.yin is the YIN equivalent of openconfig-bgp.yang)
pyang openconfig-bgp.yang -f yin -o openconfig-bgp.yin
ls *.yin
pyang -f tree openconfig-interfaces.yang
click me to see the output
module: openconfig-interfaces
+--rw interfaces
+--rw interface* [name]
+--rw name -> ../config/name
+--rw config
| +--rw name? string
| +--rw type identityref
| +--rw mtu? uint16
| +--rw loopback-mode? boolean
| +--rw description? string
| +--rw enabled? boolean
+--ro state
| +--ro name? string
| +--ro type identityref
| +--ro mtu? uint16
| +--ro loopback-mode? boolean
| +--ro description? string
| +--ro enabled? boolean
| +--ro ifindex? uint32
| +--ro admin-status enumeration
| +--ro oper-status enumeration
| +--ro last-change? oc-types:timeticks64
| +--ro logical? boolean
| +--ro counters
| +--ro in-octets? oc-yang:counter64
| +--ro in-pkts? oc-yang:counter64
| +--ro in-unicast-pkts? oc-yang:counter64
| +--ro in-broadcast-pkts? oc-yang:counter64
| +--ro in-multicast-pkts? oc-yang:counter64
| +--ro in-discards? oc-yang:counter64
| +--ro in-errors? oc-yang:counter64
| +--ro in-unknown-protos? oc-yang:counter64
| +--ro in-fcs-errors? oc-yang:counter64
| +--ro out-octets? oc-yang:counter64
| +--ro out-pkts? oc-yang:counter64
| +--ro out-unicast-pkts? oc-yang:counter64
| +--ro out-broadcast-pkts? oc-yang:counter64
| +--ro out-multicast-pkts? oc-yang:counter64
| +--ro out-discards? oc-yang:counter64
| +--ro out-errors? oc-yang:counter64
| +--ro carrier-transitions? oc-yang:counter64
| +--ro last-clear? oc-types:timeticks64
+--rw hold-time
| +--rw config
| | +--rw up? uint32
| | +--rw down? uint32
| +--ro state
| +--ro up? uint32
| +--ro down? uint32
+--rw subinterfaces
+--rw subinterface* [index]
+--rw index -> ../config/index
+--rw config
| +--rw index? uint32
| +--rw description? string
| +--rw enabled? boolean
+--ro state
+--ro index? uint32
+--ro description? string
+--ro enabled? boolean
+--ro name? string
+--ro ifindex? uint32
+--ro admin-status enumeration
+--ro oper-status enumeration
+--ro last-change? oc-types:timeticks64
+--ro logical? boolean
+--ro counters
+--ro in-octets? oc-yang:counter64
+--ro in-pkts? oc-yang:counter64
+--ro in-unicast-pkts? oc-yang:counter64
+--ro in-broadcast-pkts? oc-yang:counter64
+--ro in-multicast-pkts? oc-yang:counter64
+--ro in-discards? oc-yang:counter64
+--ro in-errors? oc-yang:counter64
+--ro in-unknown-protos? oc-yang:counter64
+--ro in-fcs-errors? oc-yang:counter64
+--ro out-octets? oc-yang:counter64
+--ro out-pkts? oc-yang:counter64
+--ro out-unicast-pkts? oc-yang:counter64
+--ro out-broadcast-pkts? oc-yang:counter64
+--ro out-multicast-pkts? oc-yang:counter64
+--ro out-discards? oc-yang:counter64
+--ro out-errors? oc-yang:counter64
+--ro carrier-transitions? oc-yang:counter64
+--ro last-clear? oc-types:timeticks64
pyang openconfig-interfaces.yang -f tree --tree-path=/interfaces/interface/state
click me to see the output
module: openconfig-interfaces
+--rw interfaces
+--rw interface* [name]
+--ro state
+--ro name? string
+--ro type identityref
+--ro mtu? uint16
+--ro loopback-mode? boolean
+--ro description? string
+--ro enabled? boolean
+--ro ifindex? uint32
+--ro admin-status enumeration
+--ro oper-status enumeration
+--ro last-change? oc-types:timeticks64
+--ro logical? boolean
+--ro counters
+--ro in-octets? oc-yang:counter64
+--ro in-pkts? oc-yang:counter64
+--ro in-unicast-pkts? oc-yang:counter64
+--ro in-broadcast-pkts? oc-yang:counter64
+--ro in-multicast-pkts? oc-yang:counter64
+--ro in-discards? oc-yang:counter64
+--ro in-errors? oc-yang:counter64
+--ro in-unknown-protos? oc-yang:counter64
+--ro in-fcs-errors? oc-yang:counter64
+--ro out-octets? oc-yang:counter64
+--ro out-pkts? oc-yang:counter64
+--ro out-unicast-pkts? oc-yang:counter64
+--ro out-broadcast-pkts? oc-yang:counter64
+--ro out-multicast-pkts? oc-yang:counter64
+--ro out-discards? oc-yang:counter64
+--ro out-errors? oc-yang:counter64
+--ro carrier-transitions? oc-yang:counter64
+--ro last-clear? oc-types:timeticks64
pyang openconfig-interfaces.yang -f tree --tree-depth=4
click me to see the output
module: openconfig-interfaces
+--rw interfaces
+--rw interface* [name]
+--rw name -> ../config/name
+--rw config
| +--rw name? string
| +--rw type identityref
| +--rw mtu? uint16
| +--rw loopback-mode? boolean
| +--rw description? string
| +--rw enabled? boolean
+--ro state
| +--ro name? string
| +--ro type identityref
| +--ro mtu? uint16
| +--ro loopback-mode? boolean
| +--ro description? string
| +--ro enabled? boolean
| +--ro ifindex? uint32
| +--ro admin-status enumeration
| +--ro oper-status enumeration
| +--ro last-change? oc-types:timeticks64
| +--ro logical? boolean
| +--ro counters
| ...
+--rw hold-time
| +--rw config
| | ...
| +--ro state
| ...
+--rw subinterfaces
+--rw subinterface* [index]
...
pyangbind is a pyang plugin.
It generates Python classes from a YANG module: It converts YANG module into a Python module, such that Python can be used to generate data which conforms with the data model defined in YANG.
python -V
Python 3.7.7
pyangbind installation from pypi
$ pip install pyangbind
pip freeze | grep pyang
pyang==2.2.1
pyangbind==0.8.1
Example with the yang module openconfig-bgp.yang
pyang --plugindir $VIRTUAL_ENV/lib/python3.7/site-packages/pyangbind/plugin -f pybind -o oc_bgp.py openconfig-bgp.yang
We have now a python module oc_bgp.py
ls | grep oc_bgp.py
Python 3.7.7 (default, Mar 10 2020, 15:43:33)
[Clang 11.0.0 (clang-1100.0.33.17)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> from oc_bgp import openconfig_bgp
>>> from json import dumps
>>> oc=openconfig_bgp()
>>> oc.bgp.peer_groups.peer_group.add("OC")
<pyangbind.lib.yangtypes.YANGDynClass.<locals>.YANGBaseClass object at 0x106e55310>
>>> oc.bgp.peer_groups.peer_group["OC"].config.local_as=104
>>> #oc.bgp.peer_groups.peer_group["OC"].config.peer_type="EXTERNAL"
>>> #oc.bgp.peer_groups.peer_group["OC"].apply_policy.config.import_policy="bgp_in"
>>> #oc.bgp.peer_groups.peer_group["OC"].apply_policy.config.export_policy="bgp_out"
>>> oc.bgp.neighbors.neighbor.add("192.168.1.2")
<pyangbind.lib.yangtypes.YANGDynClass.<locals>.YANGBaseClass object at 0x106e55470>
>>> oc.bgp.neighbors.neighbor.add("192.168.1.22")
<pyangbind.lib.yangtypes.YANGDynClass.<locals>.YANGBaseClass object at 0x1074301b0>
>>> oc.bgp.neighbors.neighbor["192.168.1.2"].config.peer_as="110"
>>> oc.bgp.neighbors.neighbor["192.168.1.2"].config.peer_group="OC"
>>> oc.bgp.neighbors.neighbor["192.168.1.22"].config.peer_as="120"
>>> oc.bgp.neighbors.neighbor["192.168.1.22"].config.peer_group="OC"
>>> print(oc.bgp.neighbors.neighbor["192.168.1.22"].config.peer_as)
120
>>> oc.get(filter=True)
{'bgp': {'neighbors': {'neighbor': OrderedDict([('192.168.1.2', {'neighbor-address': '192.168.1.2', 'config': {'peer-group': 'OC', 'peer-as': 110}}), ('192.168.1.22', {'neighbor-address': '192.168.1.22', 'config': {'peer-group': 'OC', 'peer-as': 120}})])}, 'peer-groups': {'peer-group': OrderedDict([('OC', {'peer-group-name': 'OC', 'config': {'local-as': 104}})])}}}
>>> dumps(oc.get(filter=True))
'{"bgp": {"neighbors": {"neighbor": {"192.168.1.2": {"neighbor-address": "192.168.1.2", "config": {"peer-group": "OC", "peer-as": 110}}, "192.168.1.22": {"neighbor-address": "192.168.1.22", "config": {"peer-group": "OC", "peer-as": 120}}}}, "peer-groups": {"peer-group": {"OC": {"peer-group-name": "OC", "config": {"local-as": 104}}}}}}'
>>> print(dumps(oc.get(filter=True), indent=4))
{
"bgp": {
"neighbors": {
"neighbor": {
"192.168.1.2": {
"neighbor-address": "192.168.1.2",
"config": {
"peer-group": "OC",
"peer-as": 110
}
},
"192.168.1.22": {
"neighbor-address": "192.168.1.22",
"config": {
"peer-group": "OC",
"peer-as": 120
}
}
}
},
"peer-groups": {
"peer-group": {
"OC": {
"peer-group-name": "OC",
"config": {
"local-as": 104
}
}
}
}
}
}
>>>
Default format
>>> import pyangbind.lib.pybindJSON as pybindJSON
>>> print(pybindJSON.dumps(oc))
{
"bgp": {
"neighbors": {
"neighbor": {
"192.168.1.2": {
"neighbor-address": "192.168.1.2",
"config": {
"peer-group": "OC",
"peer-as": 110
}
},
"192.168.1.22": {
"neighbor-address": "192.168.1.22",
"config": {
"peer-group": "OC",
"peer-as": 120
}
}
}
},
"peer-groups": {
"peer-group": {
"OC": {
"peer-group-name": "OC",
"config": {
"local-as": 104
}
}
}
}
}
}
>>>
rfc 7951 format
>>> print(pybindJSON.dumps(oc, mode="ietf"))
{
"openconfig-bgp:bgp": {
"neighbors": {
"neighbor": [
{
"neighbor-address": "192.168.1.2",
"config": {
"peer-group": "OC",
"peer-as": 110
}
},
{
"neighbor-address": "192.168.1.22",
"config": {
"peer-group": "OC",
"peer-as": 120
}
}
]
},
"peer-groups": {
"peer-group": [
{
"peer-group-name": "OC",
"config": {
"local-as": 104
}
}
]
}
}
}
>>>
>>> print(pybindJSON.dumps(oc.bgp.neighbors, mode="ietf"))
{
"openconfig-bgp:neighbor": [
{
"neighbor-address": "192.168.1.2",
"config": {
"peer-group": "OC",
"peer-as": 110
}
},
{
"neighbor-address": "192.168.1.22",
"config": {
"peer-group": "OC",
"peer-as": 120
}
}
]
}
>>>
We will use this gnmi command-line client and the following RPC: capabilites, get, subscribe, set.
username arista secret 0 arista
management api gnmi
transport grpc def
vrf MGMT
provider eos-native
provider eos-native is required to serve gNMI subscription/get requests with EOS native paths.
So, using the above configuration, a gNMI client can subscribes to both OpenConfig paths and native paths.
show management api gnmi
install Go
go version
go version go1.14.3 darwin/amd64
install this gnmi command-line client
ls $HOME/Go/bin | grep gnmi
gnmi
./gnmi --help
Lets use the following RPC: capabilites, get, subscribe, set.
Retrieve the set of capabilities supported by the target.
./gnmi -addr 10.83.28.203:6030 -username arista -password arista capabilities
click me to see the output
Version: 0.7.0
SupportedModel: name:"openconfig-ospf-types" organization:"OpenConfig working group" version:"0.1.3"
SupportedModel: name:"openconfig-types" organization:"OpenConfig working group" version:"0.5.1"
SupportedModel: name:"arista-lldp-augments" organization:"Arista Networks, Inc."
SupportedModel: name:"openconfig-lldp" organization:"OpenConfig working group" version:"0.2.1"
SupportedModel: name:"openconfig-mpls-types" organization:"OpenConfig working group" version:"3.0.1"
SupportedModel: name:"arista-rpol-augments" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"arista-isis-augments" organization:"Arista Networks, Inc."
SupportedModel: name:"openconfig-system-logging" organization:"OpenConfig working group" version:"0.3.1"
SupportedModel: name:"openconfig-vlan" organization:"OpenConfig working group" version:"3.0.2"
SupportedModel: name:"openconfig-bgp" organization:"OpenConfig working group" version:"5.0.2"
SupportedModel: name:"openconfig-mpls-sr" organization:"OpenConfig working group" version:"3.0.1"
SupportedModel: name:"openconfig-ospfv2" organization:"OpenConfig working group" version:"0.1.3"
SupportedModel: name:"openconfig-aft-types" organization:"OpenConfig Working Group" version:"0.3.2"
SupportedModel: name:"openconfig-network-instance-types" organization:"OpenConfig working group" version:"0.8.2"
SupportedModel: name:"openconfig-if-ip" organization:"OpenConfig working group" version:"2.3.1"
SupportedModel: name:"arista-bgp-deviations" organization:"Arista Networks, Inc."
SupportedModel: name:"arista-vlan-deviations" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"openconfig-aaa-types" organization:"OpenConfig working group" version:"0.4.1"
SupportedModel: name:"vlan-translation" organization:"Arista Networks"
SupportedModel: name:"arista-gnoi-cert" organization:"Arista Networks, Inc."
SupportedModel: name:"openconfig-system-terminal" organization:"OpenConfig working group" version:"0.3.1"
SupportedModel: name:"ietf-interfaces" organization:"IETF NETMOD (Network Modeling) Working Group"
SupportedModel: name:"arista-lldp-deviations" organization:"Arista Networks, Inc."
SupportedModel: name:"arista-bfd-augments" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"arista-netinst-deviations" organization:"Arista Networks, Inc."
SupportedModel: name:"arista-exp-eos-qos-acl-config" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"openconfig-mpls" organization:"OpenConfig working group" version:"3.0.1"
SupportedModel: name:"arista-pim-augments" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"arista-intf-augments" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"openconfig-system-management" organization:"OpenConfig working group" version:"0.1.2"
SupportedModel: name:"openconfig-platform-fan" organization:"OpenConfig working group" version:"0.1.1"
SupportedModel: name:"openconfig-mpls-ldp" organization:"OpenConfig working group" version:"3.0.1"
SupportedModel: name:"openconfig-platform-psu" organization:"OpenConfig working group" version:"0.2.1"
SupportedModel: name:"openconfig-platform-linecard" organization:"OpenConfig working group" version:"0.1.1"
SupportedModel: name:"openconfig-system" organization:"OpenConfig working group" version:"0.6.1"
SupportedModel: name:"openconfig-policy-forwarding" organization:"OpenConfig working group" version:"0.2.1"
SupportedModel: name:"openconfig-igmp" organization:"OpenConfig working group" version:"0.1.1"
SupportedModel: name:"arista-exp-eos-mlag" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"arista-bfd-deviations" organization:"Arista Networks, Inc."
SupportedModel: name:"arista-system-deviations" organization:"Arista Networks, Inc."
SupportedModel: name:"arista-lacp-deviations" organization:"Arista Networks, Inc."
SupportedModel: name:"openconfig-alarm-types" organization:"OpenConfig working group" version:"0.2.1"
SupportedModel: name:"openconfig-bgp-policy" organization:"OpenConfig working group" version:"5.0.2"
SupportedModel: name:"openconfig-isis-lsdb-types" organization:"OpenConfig working group" version:"0.4.2"
SupportedModel: name:"arista-lacp-augments" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"arista-exp-eos-multicast" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"arista-isis-deviations" organization:"Arista Networks, Inc."
SupportedModel: name:"openconfig-aft" organization:"OpenConfig working group" version:"0.3.2"
SupportedModel: name:"openconfig-yang-types" organization:"OpenConfig working group" version:"0.2.1"
SupportedModel: name:"ietf-netconf-monitoring" organization:"IETF NETCONF (Network Configuration) Working Group"
SupportedModel: name:"openconfig-if-ethernet" organization:"OpenConfig working group" version:"2.6.2"
SupportedModel: name:"openconfig-platform-types" organization:"OpenConfig working group" version:"0.10.1"
SupportedModel: name:"openconfig-lacp" organization:"OpenConfig working group" version:"1.1.1"
SupportedModel: name:"openconfig-vlan-types" organization:"OpenConfig working group" version:"3.0.1"
SupportedModel: name:"openconfig-bgp-types" organization:"OpenConfig working group" version:"5.0.2"
SupportedModel: name:"openconfig-if-aggregate" organization:"OpenConfig working group" version:"2.3.2"
SupportedModel: name:"openconfig-pim" organization:"OpenConfig working group" version:"0.1.1"
SupportedModel: name:"openconfig-qos" organization:"OpenConfig working group" version:"0.2.1"
SupportedModel: name:"openconfig-procmon" organization:"OpenConfig working group" version:"0.3.1"
SupportedModel: name:"openconfig-ospf-policy" organization:"OpenConfig working group" version:"0.1.3"
SupportedModel: name:"arista-relay-agent-deviations" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"openconfig-alarms" organization:"OpenConfig working group" version:"0.3.1"
SupportedModel: name:"arista-rpol-deviations" organization:"Arista Networks, Inc."
SupportedModel: name:"arista-system-augments" organization:"Arista Networks, Inc."
SupportedModel: name:"arista-exp-eos-vxlan" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"arista-rpc-netconf" organization:"Arista Networks, Inc."
SupportedModel: name:"arista-exp-eos-igmpsnooping" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"arista-intf-deviations" organization:"Arista Networks, Inc."
SupportedModel: name:"arista-vlan-augments" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"openconfig-isis-types" organization:"OpenConfig working group" version:"0.4.2"
SupportedModel: name:"openconfig-network-instance" organization:"OpenConfig working group" version:"0.11.1"
SupportedModel: name:"openconfig-isis" organization:"OpenConfig working group" version:"0.4.2"
SupportedModel: name:"openconfig-bfd" organization:"OpenConfig working group" version:"0.1.0"
SupportedModel: name:"arista-srte-deviations" organization:"Arista Networks, Inc."
SupportedModel: name:"iana-if-type" organization:"IANA"
SupportedModel: name:"openconfig-if-types" organization:"OpenConfig working group" version:"0.2.1"
SupportedModel: name:"openconfig-packet-match-types" organization:"OpenConfig working group" version:"1.0.2"
SupportedModel: name:"openconfig-qos-types" organization:"OpenConfig working group" version:"0.2.1"
SupportedModel: name:"openconfig-policy-types" organization:"OpenConfig working group" version:"3.1.1"
SupportedModel: name:"arista-exp-eos" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"openconfig-interfaces" organization:"OpenConfig working group" version:"2.4.1"
SupportedModel: name:"openconfig-network-instance-l3" organization:"OpenConfig working group" version:"0.11.1"
SupportedModel: name:"openconfig-routing-policy" organization:"OpenConfig working group" version:"3.1.1"
SupportedModel: name:"arista-mpls-augments" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"ietf-yang-types" organization:"IETF NETMOD (NETCONF Data Modeling Language) Working Group"
SupportedModel: name:"openconfig-packet-match" organization:"OpenConfig working group" version:"1.1.1"
SupportedModel: name:"openconfig-local-routing" organization:"OpenConfig working group" version:"1.0.2"
SupportedModel: name:"ietf-netconf" organization:"IETF NETCONF (Network Configuration) Working Group"
SupportedModel: name:"openconfig-platform" organization:"OpenConfig working group" version:"0.12.1"
SupportedModel: name:"arista-acl-deviations" organization:"Arista Networks, Inc."
SupportedModel: name:"arista-exp-eos-qos" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"arista-mpls-deviations" organization:"Arista Networks, Inc."
SupportedModel: name:"openconfig-acl" organization:"OpenConfig working group" version:"1.0.2"
SupportedModel: name:"openconfig-segment-routing" organization:"OpenConfig working group" version:"0.0.4"
SupportedModel: name:"arista-exp-eos-qos-config" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"openconfig-aaa" organization:"OpenConfig working group" version:"0.4.1"
SupportedModel: name:"openconfig-pim-types" organization:"OpenConfig working group" version:"0.1.1"
SupportedModel: name:"arista-exp-eos-vxlan-config" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"ietf-inet-types" organization:"IETF NETMOD (NETCONF Data Modeling Language) Working Group"
SupportedModel: name:"openconfig-hercules-interfaces" organization:"OpenConfig Hercules Working Group" version:"0.2.0"
SupportedModel: name:"arista-exp-eos-varp" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"openconfig-mpls-rsvp" organization:"OpenConfig working group" version:"3.0.1"
SupportedModel: name:"openconfig-pf-srte" organization:"OpenConfig working group" version:"0.1.1"
SupportedModel: name:"openconfig-extensions" organization:"OpenConfig working group"
SupportedModel: name:"openconfig-igmp-types" organization:"OpenConfig working group" version:"0.1.1"
SupportedModel: name:"openconfig-relay-agent" organization:"OpenConfig working group" version:"0.1.1"
SupportedModel: name:"openconfig-if-tunnel" organization:"OpenConfig working group" version:"0.1.1"
SupportedModel: name:"openconfig-inet-types" organization:"OpenConfig working group" version:"0.3.2"
SupportedModel: name:"arista-eos-types" organization:"Arista Networks <http://arista.com/>"
SupportedModel: name:"openconfig-lldp-types" organization:"OpenConfig working group" version:"0.1.1"
SupportedModel: name:"arista-local-routing-deviations" organization:"Arista Networks, Inc."
SupportedEncoding: JSON
SupportedEncoding: JSON_IETF
SupportedEncoding: ASCII
Request to the target to stream values for a path
./gnmi -addr 10.83.28.203:6030 -username arista -password arista subscribe '/network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/state'
click me to see the output
[2020-05-31T22:21:31.707253093Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.0]/state/dynamically-configured = false
[2020-05-31T22:21:31.707256177Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.0]/state/enabled = true
[2020-05-31T22:21:31.741369402Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.0]/state/established-transitions = 1
[2020-05-31T22:21:31.741756411Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.0]/state/last-established = 159096348629
[2020-05-31T22:21:31.711484298Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.0]/state/neighbor-address = 10.10.10.0
[2020-05-31T22:21:31.718742166Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.0]/state/peer-as = 65001
[2020-05-31T22:21:31.70725986Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.0]/state/route-flap-damping = false
[2020-05-31T22:21:31.707263783Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.0]/state/send-community = NONE
[2020-05-31T22:21:31.741504683Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.0]/state/session-state = ESTABLISHED
[2020-05-31T22:21:31.711775449Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/dynamically-configured = false
[2020-05-31T22:21:31.711778386Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/enabled = true
[2020-05-31T22:21:31.742386216Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/established-transitions = 1
[2020-05-31T22:21:31.74248292Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/last-established = 159096348429
[2020-05-31T22:21:31.712592538Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/neighbor-address = 10.10.10.5
[2020-05-31T22:21:31.730382272Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/peer-as = 65003
[2020-05-31T22:21:31.711782096Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/route-flap-damping = false
[2020-05-31T22:21:31.711786244Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/send-community = NONE
[2020-05-31T22:21:31.742155428Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/session-state = ESTABLISHED
./gnmi -addr 10.83.28.203:6030 -username arista -password arista subscribe '/network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state'
click me to see the output
[2020-05-31T22:21:31.711775449Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/dynamically-configured = false
[2020-05-31T22:21:31.711778386Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/enabled = true
[2020-05-31T22:21:31.742386216Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/established-transitions = 1
[2020-05-31T22:21:31.74248292Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/last-established = 159096348429
[2020-05-31T22:21:31.712592538Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/neighbor-address = 10.10.10.5
[2020-05-31T22:21:31.730382272Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/peer-as = 65003
[2020-05-31T22:21:31.711782096Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/route-flap-damping = false
[2020-05-31T22:21:31.711786244Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/send-community = NONE
[2020-05-31T22:21:31.742155428Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/state/session-state = ESTABLISHED
./gnmi -addr 10.83.28.203:6030 -username arista -password arista subscribe '/network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/config'
click me to see the output
[2020-05-31T23:02:35.055278732Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/config/enabled = true
[2020-05-31T23:02:35.055824489Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/config/neighbor-address = 10.10.10.5
[2020-05-31T23:02:35.063057098Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/config/peer-as = 65003
[2020-05-31T23:02:35.05528639Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/config/route-flap-damping = false
[2020-05-31T23:02:35.055282396Z] /network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.5]/config/send-community = NONE
./gnmi -addr 10.83.28.203:6030 -username arista -password arista subscribe '/interfaces/interface[name=Ethernet24]/state/counters'
click me to see the output
[2020-05-31T22:21:31.317592414Z] /interfaces/interface[name=Ethernet24]/state/counters/in-broadcast-pkts = 0
[2020-05-31T22:21:31.317572819Z] /interfaces/interface[name=Ethernet24]/state/counters/in-discards = 0
[2020-05-31T22:21:31.317667791Z] /interfaces/interface[name=Ethernet24]/state/counters/in-errors = 0
[2020-05-31T22:29:55.324957018Z] /interfaces/interface[name=Ethernet24]/state/counters/in-multicast-pkts = 19
[2020-05-31T22:29:55.324938409Z] /interfaces/interface[name=Ethernet24]/state/counters/in-octets = 6637
[2020-05-31T22:29:23.307923971Z] /interfaces/interface[name=Ethernet24]/state/counters/in-unicast-pkts = 28
[2020-05-31T22:21:31.317558268Z] /interfaces/interface[name=Ethernet24]/state/counters/out-broadcast-pkts = 1
[2020-05-31T22:21:31.317641085Z] /interfaces/interface[name=Ethernet24]/state/counters/out-discards = 0
[2020-05-31T22:21:31.317650693Z] /interfaces/interface[name=Ethernet24]/state/counters/out-errors = 0
[2020-05-31T22:29:53.324273922Z] /interfaces/interface[name=Ethernet24]/state/counters/out-multicast-pkts = 18
[2020-05-31T22:29:53.324253853Z] /interfaces/interface[name=Ethernet24]/state/counters/out-octets = 5865
[2020-05-31T22:29:23.307958857Z] /interfaces/interface[name=Ethernet24]/state/counters/out-unicast-pkts = 19
[2020-05-31T22:30:23.3394854Z] /interfaces/interface[name=Ethernet24]/state/counters/out-multicast-pkts = 19
[2020-05-31T22:30:23.339507569Z] /interfaces/interface[name=Ethernet24]/state/counters/in-unicast-pkts = 30
[2020-05-31T22:30:23.339558179Z] /interfaces/interface[name=Ethernet24]/state/counters/in-octets = 6796
[2020-05-31T22:30:23.340718713Z] /interfaces/interface[name=Ethernet24]/state/counters/out-octets = 6250
[2020-05-31T22:30:23.340740613Z] /interfaces/interface[name=Ethernet24]/state/counters/out-unicast-pkts = 21
[2020-05-31T22:30:25.34256155Z] /interfaces/interface[name=Ethernet24]/state/counters/in-octets = 7022
[2020-05-31T22:30:25.342580956Z] /interfaces/interface[name=Ethernet24]/state/counters/in-multicast-pkts = 20
gnmi -addr 0.83.28.203:6030 -username arista -password arista -sample_interval 5s -stream_mode sample subscribe '/network-instances/network-instance/protocols/protocol/bgp/'
Retrieve a snapshot for a path
./gnmi -addr 10.83.28.203:6030 -username arista -password arista get '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp/neighbors'
click me to see the output
/network-instances/network-instance[name=default]/protocols/protocol[identifier=BGP][name=BGP]/bgp/neighbors:
{
"openconfig-network-instance:neighbor": [
{
"afi-safis": {
"afi-safi": [
{
"add-paths": {
"config": {
"send": false
},
"state": {
"send": false
}
},
"afi-safi-name": "openconfig-bgp-types:IPV6_UNICAST",
"apply-policy": {
"config": {
"default-export-policy": "REJECT_ROUTE",
"default-import-policy": "REJECT_ROUTE"
},
"state": {
"default-export-policy": "REJECT_ROUTE",
"default-import-policy": "REJECT_ROUTE"
}
},
"config": {
"afi-safi-name": "openconfig-bgp-types:IPV6_UNICAST"
},
"graceful-restart": {
"config": {},
"state": {}
},
"state": {
"afi-safi-name": "openconfig-bgp-types:IPV6_UNICAST"
}
},
{
"add-paths": {
"config": {
"send": false
},
"state": {
"send": false
}
},
"afi-safi-name": "openconfig-bgp-types:IPV4_UNICAST",
"apply-policy": {
"config": {
"default-export-policy": "REJECT_ROUTE",
"default-import-policy": "REJECT_ROUTE"
},
"state": {
"default-export-policy": "REJECT_ROUTE",
"default-import-policy": "REJECT_ROUTE"
}
},
"config": {
"afi-safi-name": "openconfig-bgp-types:IPV4_UNICAST"
},
"graceful-restart": {
"config": {},
"state": {}
},
"state": {
"afi-safi-name": "openconfig-bgp-types:IPV4_UNICAST"
}
}
]
},
"apply-policy": {
"config": {
"default-export-policy": "REJECT_ROUTE",
"default-import-policy": "REJECT_ROUTE"
},
"state": {
"default-export-policy": "REJECT_ROUTE",
"default-import-policy": "REJECT_ROUTE"
}
},
"as-path-options": {
"config": {
"disable-peer-as-filter": false,
"replace-peer-as": false
},
"state": {
"disable-peer-as-filter": false,
"replace-peer-as": false
}
},
"config": {
"enabled": true,
"neighbor-address": "10.10.10.0",
"peer-as": 65001,
"route-flap-damping": false,
"send-community": "NONE"
},
"ebgp-multihop": {
"config": {
"enabled": false,
"multihop-ttl": 0
},
"state": {
"enabled": false,
"multihop-ttl": 0
}
},
"error-handling": {
"config": {
"treat-as-withdraw": false
},
"state": {
"treat-as-withdraw": false
}
},
"neighbor-address": "10.10.10.0",
"route-reflector": {
"config": {},
"state": {}
},
"state": {
"dynamically-configured": false,
"enabled": true,
"established-transitions": "1",
"last-established": "159096348629",
"neighbor-address": "10.10.10.0",
"peer-as": 65001,
"route-flap-damping": false,
"send-community": "NONE",
"session-state": "ESTABLISHED"
},
"timers": {
"config": {
"connect-retry": "30.0",
"minimum-advertisement-interval": "30.0"
},
"state": {
"connect-retry": "30.0",
"minimum-advertisement-interval": "30.0"
}
},
"transport": {
"config": {
"mtu-discovery": true
},
"state": {
"mtu-discovery": true,
"remote-address": "10.10.10.0",
"remote-port": 0
}
},
"use-multiple-paths": {
"config": {
"enabled": false
},
"ebgp": {
"config": {
"allow-multiple-as": false
},
"state": {
"allow-multiple-as": false
}
},
"state": {
"enabled": false
}
}
},
{
"afi-safis": {
"afi-safi": [
{
"add-paths": {
"config": {
"send": false
},
"state": {
"send": false
}
},
"afi-safi-name": "openconfig-bgp-types:IPV6_UNICAST",
"apply-policy": {
"config": {
"default-export-policy": "REJECT_ROUTE",
"default-import-policy": "REJECT_ROUTE"
},
"state": {
"default-export-policy": "REJECT_ROUTE",
"default-import-policy": "REJECT_ROUTE"
}
},
"config": {
"afi-safi-name": "openconfig-bgp-types:IPV6_UNICAST"
},
"graceful-restart": {
"config": {},
"state": {}
},
"state": {
"afi-safi-name": "openconfig-bgp-types:IPV6_UNICAST"
}
},
{
"add-paths": {
"config": {
"send": false
},
"state": {
"send": false
}
},
"afi-safi-name": "openconfig-bgp-types:IPV4_UNICAST",
"apply-policy": {
"config": {
"default-export-policy": "REJECT_ROUTE",
"default-import-policy": "REJECT_ROUTE"
},
"state": {
"default-export-policy": "REJECT_ROUTE",
"default-import-policy": "REJECT_ROUTE"
}
},
"config": {
"afi-safi-name": "openconfig-bgp-types:IPV4_UNICAST"
},
"graceful-restart": {
"config": {},
"state": {}
},
"state": {
"afi-safi-name": "openconfig-bgp-types:IPV4_UNICAST"
}
}
]
},
"apply-policy": {
"config": {
"default-export-policy": "REJECT_ROUTE",
"default-import-policy": "REJECT_ROUTE"
},
"state": {
"default-export-policy": "REJECT_ROUTE",
"default-import-policy": "REJECT_ROUTE"
}
},
"as-path-options": {
"config": {
"disable-peer-as-filter": false,
"replace-peer-as": false
},
"state": {
"disable-peer-as-filter": false,
"replace-peer-as": false
}
},
"config": {
"enabled": true,
"neighbor-address": "10.10.10.5",
"peer-as": 65003,
"route-flap-damping": false,
"send-community": "NONE"
},
"ebgp-multihop": {
"config": {
"enabled": false,
"multihop-ttl": 0
},
"state": {
"enabled": false,
"multihop-ttl": 0
}
},
"error-handling": {
"config": {
"treat-as-withdraw": false
},
"state": {
"treat-as-withdraw": false
}
},
"neighbor-address": "10.10.10.5",
"route-reflector": {
"config": {},
"state": {}
},
"state": {
"dynamically-configured": false,
"enabled": true,
"established-transitions": "1",
"last-established": "159096348429",
"neighbor-address": "10.10.10.5",
"peer-as": 65003,
"route-flap-damping": false,
"send-community": "NONE",
"session-state": "ESTABLISHED"
},
"timers": {
"config": {
"connect-retry": "30.0",
"minimum-advertisement-interval": "30.0"
},
"state": {
"connect-retry": "30.0",
"minimum-advertisement-interval": "30.0"
}
},
"transport": {
"config": {
"mtu-discovery": true
},
"state": {
"mtu-discovery": true,
"remote-address": "10.10.10.5",
"remote-port": 0
}
},
"use-multiple-paths": {
"config": {
"enabled": false
},
"ebgp": {
"config": {
"allow-multiple-as": false
},
"state": {
"allow-multiple-as": false
}
},
"state": {
"enabled": false
}
}
}
]
}
The Set RPC is used to modify states.
The SetRequest message uses the following fields:
- "delete" field: A set of paths which are to be removed from the data tree.
- "replace" field: A set of "Update messages" indicating elements of the data tree whose content is to be replaced.
- "update" field: A set of "Update messages" indicating elements of the data tree whose content is to be updated.
An "Update message" is utilised to indicate changes to paths where a new value is required. The Update message contains two fields: path and value.
For both "replace" and "update" operations, if the path specified does not exist, the target MUST create the data tree element and populate it with the data in the Update message, provided the path and data are valid
"enabled" is a leaf defined in the openconfig-interfaces.yang file. It is a boolean. Its default value is true. It is the configured state of the interface. This leaf always exists.
./gnmi -addr 10.83.28.203:6030 -username arista -password arista update '/interfaces/interface[name=Ethernet4]/config/enabled' 'false'
click me to see the new EOS configuration
switch2#show running-config interfaces ethernet 4
interface Ethernet4
shutdown
switch2#
./gnmi -addr 10.83.28.203:6030 -username arista -password arista update '/interfaces/interface[name=Ethernet4]/config/enabled' 'true'
click me to see the new EOS configuration
switch2#show running-config interfaces ethernet 4
interface Ethernet4
switch2#
New elements could be new BGP neighbors, new BGP groups ....
If the element doesnt exist, it will be created.
If it already exist then it will be replaced.
./gnmi -addr 10.83.28.203:6030 -username arista -password arista replace '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp' '{"global": {"config": {"as": 65002}}}'
click me to see the new EOS configuration
switch2#show running-config sec bgp
router bgp 65002
switch2#
If the element doesnt exist, it will be created.
If it already exist then it will be updated.
./gnmi -addr 10.83.28.203:6030 -username arista -password arista update '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp/peer-groups/peer-group[peer-group-name=XYZ]' '{"config": {"peer-group-name":"XYZ"}}'
click me to see the new EOS configuration
switch2#show running-config sec bgp
router bgp 65002
neighbor XYZ peer group
neighbor XYZ maximum-routes 12000
switch2#
If the element doesnt exist, it will be created.
If it already exist then it will be updated.
./gnmi -addr 10.83.28.203:6030 -username arista -password arista update '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.100.43]' '{"config": {"neighbor-address":"10.10.100.43", "peer-as": 123, "enabled": true, "send-community": "EXTENDED"}}'
click me to see the new EOS configuration
switch2#show running-config sec bgp
router bgp 65002
neighbor XYZ peer group
neighbor XYZ maximum-routes 12000
neighbor 10.10.100.43 remote-as 123
neighbor 10.10.100.43 send-community extended
neighbor 10.10.100.43 maximum-routes 12000
switch2#
If the element doesnt exist, it will be created.
If it already exist then it will be replaced.
./gnmi -addr 10.83.28.203:6030 -username arista -password arista replace '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.100.43]' '{"config": {"neighbor-address":"10.10.100.43", "peer-as": 123}, "neighbor-address": "10.10.100.43"}'
click me to see the new EOS configuration
switch2#show running-config sec bgp
router bgp 65002
neighbor XYZ peer group
neighbor XYZ maximum-routes 12000
neighbor 10.10.100.43 remote-as 123
neighbor 10.10.100.43 maximum-routes 12000
switch2#
if the BGP neighbor element already exists it will be updated. If the BGP neighbor element doesnt exist, the request will fail and it wont be created despite the field "path" is valid (because some of the required data are missing in the field "value" of the "update message").
These 2 commands are equivalent:
./gnmi -addr 10.83.28.203:6030 -username arista -password arista update '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.100.43]/config/peer-as' '110'
./gnmi -addr 10.83.28.203:6030 -username arista -password arista update '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.100.43]' '{"config": {"peer-as": 110}}'
click me to see the new EOS configuration
switch2(config)#show running-config section bgp
router bgp 65002
neighbor XYZ peer group
neighbor XYZ maximum-routes 12000
neighbor 10.10.100.43 remote-as 110
neighbor 10.10.100.43 maximum-routes 12000
switch2(config)#
./gnmi -addr 10.83.28.203:6030 -username arista -password arista update '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.100.43]/config/peer-group' 'XYZ'
click me to see the new EOS configuration
switch2(config)#show running-config section bgp
router bgp 65002
neighbor XYZ peer group
neighbor XYZ maximum-routes 12000
neighbor 10.10.100.43 peer group XYZ
neighbor 10.10.100.43 remote-as 110
switch2(config)#
./gnmi -addr 10.83.28.203:6030 -username arista -password arista update '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.100.43]' '{"config": {"peer-group": "XYZ","peer-as": 143}}'
click me to see the new EOS configuration
switch2(config)#show running-config section bgp
router bgp 65002
neighbor XYZ peer group
neighbor XYZ maximum-routes 12000
neighbor 10.10.100.43 peer group XYZ
neighbor 10.10.100.43 remote-as 143
switch2(config)#
The delete field in the SetRequest messaage has a set of paths which are to be removed from the data tree.
This command will send a SetRequest message with 1 path in the delete field.
./gnmi -addr 10.83.28.203:6030 -username arista -password arista delete '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.100.43]'
click me to see the new EOS configuration
switch2(config)#show running-config section bgp
router bgp 65002
neighbor XYZ peer group
neighbor XYZ maximum-routes 12000
switch2(config)#
We can use all the fields (delete, replace and update) in the SetRequest message, with several paths in each the field.
This command will send a SetRequest message with 3 paths in the field upate and 1 path in the field delete.
./gnmi -addr 10.83.28.203:6030 -username arista -password arista update '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp' '{"global": {"config": {"as": 65002}}}' update '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp/peer-groups/peer-group[peer-group-name=XYZ]' '{"peer-group-name":"XYZ", "config": {"peer-group-name":"XYZ"}}' update '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.1]' '{"neighbor-address":"10.10.10.1", "config": {"neighbor-address":"10.10.10.1", "peer-as": 123, "enabled": true, "send-community": "EXTENDED"}}' delete '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.100.43]'
click me to see the new EOS configuration
switch2(config)#show running-config section bgp
router bgp 65002
neighbor XYZ peer group
neighbor XYZ maximum-routes 12000
neighbor 10.10.10.1 remote-as 123
neighbor 10.10.10.1 send-community extended
neighbor 10.10.10.1 maximum-routes 12000
switch2(config)#
This command will send a SetRequest message with 2 paths in the delete field.
./gnmi -addr 10.83.28.203:6030 -username arista -password arista delete '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp/neighbors/neighbor[neighbor-address=10.10.10.1]/config/send-community' delete '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp/peer-groups/peer-group[peer-group-name=XYZ]'
click me to see the new EOS configuration
switch2(config)#show running-config section bgp
router bgp 65002
neighbor 10.10.10.1 remote-as 123
neighbor 10.10.10.1 maximum-routes 12000
switch2(config)#
We can use the file bgp.json to create new elements or replace the existing ones
Several elements will be modified. For each element:
- If the element doesnt exist, it will be created.
- If it already exist then it will be replaced.
./gnmi -addr 10.83.28.203:6030 -username arista -password arista replace '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp' /Users/ksator/Projects/gnmi/bgp.json
click me to see the new EOS configuration
switch2(config)#show running-config section bgp
router bgp 65002
neighbor XYZ peer group
neighbor XYZ remote-as 65002
neighbor XYZ maximum-routes 12000
neighbor 10.10.10.1 remote-as 123
neighbor 10.10.10.1 maximum-routes 12000
neighbor 10.10.10.154 peer group XYZ
neighbor 10.10.10.157 peer group XYZ
switch2(config)#
The origin field can be used in a SetRequest, GetRequest, SubscribeRequest messages.
This field is optionnal. It is a string. Its default value is openconfig
The path specified within the message is uniquely identified by the tuple of <origin, path>.
This field is used to disambiguate the path.
The origin is used to indicate which organization defined the path.
In addition to accepting OpenConfig paths in gNMI get/subscribe requests, Arista EOS devices accept also EOS native paths (e.g. Sysdb/Smash/kernel paths) when gNMI requests contains an origin of eos_native.
Examples:
./gnmi -addr 10.83.28.125:6030 -username arista -password arista subscribe origin=openconfig '/network-instances/network-instance/protocols/protocol/bgp/neighbors/neighbor/state'
./gnmi -addr 10.83.28.125:6030 -username arista -password arista subscribe origin=eos_native '/Sysdb/routing/bgp/export/'
./gnmi -addr 10.83.28.125:6030 -username arista -password arista subscribe origin=eos_native '/Smash/routing/bgp'
./gnmi -addr 10.83.28.125:6030 -username arista -password arista subscribe origin=eos_native '/Kernel/proc/cpu/'
We will use YANG files and pyangbind to generate an OpenConfig configuration file. We will then use GNMI (SET gRPC) to configure the device with that OpenConfig configuration file.
- Install pyang
pip install pyang
- Install pyangbind
pip install pyangbind
- Download yang files
git clone https://github.com/openconfig/public.git
- copy all the yang files from Openconfig into one directory (see above repository for detailled instructions)
- move to that directory and run this command to convert the YANG module openconfig-bgp.yang into the Python module oc_bgp.py
pyang --plugindir $VIRTUAL_ENV/lib/python3.7/site-packages/pyangbind/plugin -f pybind -o oc_bgp.py openconfig-bgp.yang
From the directory that has the python module oc_bgp.py, execute the following python code in order to generate an OC configuration
from oc_bgp import openconfig_bgp
import pyangbind.lib.pybindJSON as pybindJSON
oc=openconfig_bgp()
oc.bgp.global_.config.as_="65002"
oc.bgp.peer_groups.peer_group.add("XYZ")
oc.bgp.peer_groups.peer_group["XYZ"].config.peer_group_name="XYZ"
oc.bgp.peer_groups.peer_group["XYZ"].config.peer_as=65002
oc.bgp.neighbors.neighbor.add("10.10.10.154")
oc.bgp.neighbors.neighbor["10.10.10.154"].config.neighbor_address="10.10.10.154"
oc.bgp.neighbors.neighbor["10.10.10.154"].config.peer_group="XYZ"
oc.bgp.neighbors.neighbor["10.10.10.154"].config.enabled=True
oc.bgp.neighbors.neighbor.add("10.10.10.157")
oc.bgp.neighbors.neighbor["10.10.10.157"].config.neighbor_address="10.10.10.157"
oc.bgp.neighbors.neighbor["10.10.10.157"].config.peer_group="XYZ"
oc.bgp.neighbors.neighbor["10.10.10.157"].config.enabled=True
Print the generated configuration
print(pybindJSON.dumps(oc.bgp, mode="ietf"))
{
"openconfig-bgp:global": {
"config": {
"as": 65002
}
},
"openconfig-bgp:neighbors": {
"neighbor": [
{
"neighbor-address": "10.10.10.154",
"config": {
"peer-group": "XYZ",
"neighbor-address": "10.10.10.154"
}
},
{
"neighbor-address": "10.10.10.157",
"config": {
"peer-group": "XYZ",
"neighbor-address": "10.10.10.157"
}
}
]
},
"openconfig-bgp:peer-groups": {
"peer-group": [
{
"peer-group-name": "XYZ",
"config": {
"peer-group-name": "XYZ",
"peer-as": 65002
}
}
]
}
}
Verify the current BGP configuration on a device
SPINE1(config)#sh running-config section bgp
SPINE1(config)#
Use the gRPC SET to load the generated OC configuration file to that device
`./gnmi -addr device_IP:gnmi_port -username username -password password replace '/network-instances/network-instance[name=default]/protocols/protocol[name=BGP]/bgp' /Users/ksator/Projects/gnmi/generated_file.json`
Verify the new BGP configuration on that device
SPINE1#sh running-config section bgp
router bgp 65002
neighbor XYZ peer group
neighbor XYZ remote-as 65002
neighbor XYZ maximum-routes 12000
neighbor 10.10.10.154 peer group XYZ
neighbor 10.10.10.157 peer group XYZ
SPINE1#
et voila :-)