Provision CLOS fabric using Dell EMC Networking Ansible modules example¶
This example describes how to use Ansible to build a CLOS fabric with Dell EMC Networking OS10 switches. The sample topology is a two-tier CLOS fabric with two spines and four leafs connected as mesh. EBGP is running between the two tiers.
All switches in spine have the same AS number, and each leaf switch has a unique AS number. All AS number used are private. For application load-balancing purposes, the same prefix is advertised from multiple leaf switches and uses BGP multipath relax feature.
Creating a Simple Ansible Playbook¶
Step 1
Create an inventory file called inventory.yaml and specify the device IP address:
spine1 ansible_host=10.11.182.25
spine2 ansible_host=10.11.182.26
leaf1 ansible_host=10.11.182.27
leaf2 ansible_host=10.11.182.28
leaf3 ansible_host=10.11.182.29
leaf4 ansible_host=10.11.182.30
[spine]
spine1
spine2
[leaf]
leaf1
leaf2
leaf3
leaf4
[datacenter:children]
spine
leaf
Step 2
Create a host variable file called host_vars/spine1.yaml, then define the host, credentials and transport:
hostname: spine1
ansible_ssh_user: xxxxx
ansible_ssh_pass: xxxxx
ansible_network_os: dellos10
dellos_interface:
ethernet 1/1/1:
desc: "Connected to leaf 1"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.1.1.1/24
ipv6_and_mask: 2001:100:1:1::1/64
state_ipv6: present
ethernet 1/1/17:
desc: "Connected to leaf 2"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.1.33.1/24
ipv6_and_mask: 2001:100:1:21::1/64
state_ipv6: present
ethernet 1/1/25:
desc: "Connected to leaf 3"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.1.17.1/24
ipv6_and_mask: 2001:100:1:11::1/64
state_ipv6: present
ethernet 1/1/9:
desc: "Connected to leaf 4"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.1.49.1/24
ipv6_and_mask: 2001:100:1:31::1/64
state_ipv6: present
dellos_bgp:
asn: 64901
router_id: 100.0.1.1
best_path:
as_path: multipath-relax
as_path_state: present
med:
- attribute: missing-as-worst
state: present
neighbor:
- type: ipv4
remote_asn: 64801
ip: 100.1.1.2
admin: up
state: present
- type: ipv4
remote_asn: 64803
ip: 100.1.33.2
admin: up
state: present
- type: ipv4
remote_asn: 64802
ip: 100.1.17.2
admin: up
state: present
- type: ipv4
remote_asn: 64804
ip: 100.1.49.2
admin: up
state: present
- type: ipv6
remote_asn: 64801
ip: 2001:100:1:1::2
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
- type: ipv6
remote_asn: 64802
ip: 2001:100:1:11::2
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
- type: ipv6
remote_asn: 64803
ip: 2001:100:1:21::2
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
- type: ipv6
remote_asn: 64804
ip: 2001:100:1:31::2
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
dellos_snmp:
snmp_community:
- name: public
access_mode: ro
state: present
hostname: spine2
ansible_ssh_user: xxxxx
ansible_ssh_pass: xxxxx
ansible_network_os: dellos10
dellos_interface:
ethernet 1/1/1:
desc: "Connected to leaf 1"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.2.1.1/24
ipv6_and_mask: 2001:100:2:1::1/64
state_ipv6: present
ethernet 1/1/25:
desc: "Connected to leaf 2"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.2.17.1/24
ipv6_and_mask: 2001:100:2:11::1/64
state_ipv6: present
ethernet 1/1/17:
desc: "Connected to leaf 3"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.2.33.1/24
ipv6_and_mask: 2001:100:2:21::1/64
state_ipv6: present
ethernet 1/1/9:
desc: "Connected to leaf 4"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.2.49.1/24
ipv6_and_mask: 2001:100:2:31::1/64
state_ipv6: present
dellos_bgp:
asn: 64901
router_id: 100.0.1.2
best_path:
as_path: multipath-relax
as_path_state: present
med:
- attribute: missing-as-worst
state: present
neighbor:
- type: ipv4
remote_asn: 64801
ip: 100.2.1.2
admin: up
state: present
- type: ipv4
remote_asn: 64802
ip: 100.2.33.2
admin: up
state: present
- type: ipv4
remote_asn: 64803
ip: 100.2.17.2
admin: up
state: present
- type: ipv4
remote_asn: 64804
ip: 100.2.49.2
admin: up
state: present
- type: ipv6
remote_asn: 64801
ip: 2001:100:2:1::2
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
- type: ipv6
remote_asn: 64802
ip: 2001:100:2:11::2
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
- type: ipv6
remote_asn: 64803
ip: 2001:100:2:21::2
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
- type: ipv6
remote_asn: 64804
ip: 2001:100:2:31::2
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
state: present
dellos_snmp:
snmp_community:
- name: public
access_mode: ro
state: present
hostname: leaf1
ansible_ssh_user: xxxxx
ansible_ssh_pass: xxxxx
ansible_network_os: dellos10
dellos_system:
hash_algo:
algo:
- name: ecmp
mode: crc
state: present
dellos_interface:
ethernet 1/1/1:
desc: "Connected to Spine 1"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.1.1.2/24
ipv6_and_mask: 2001:100:1:1::2/64
state_ipv6: present
ethernet 1/1/9:
desc: "Connected to Spine 2"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.2.1.2/24
ipv6_and_mask: 2001:100:2:1::2/64
state_ipv6: present
dellos_bgp:
asn: 64801
router_id: 100.0.2.1
address_family_ipv4: true
address_family_ipv6: true
best_path:
as_path: multipath-relax
as_path_state: present
med:
- attribute: missing-as-worst
state: present
neighbor:
- type: ipv4
remote_asn: 64901
ip: 100.1.1.1
admin: up
state: present
- type: ipv4
remote_asn: 64901
ip: 100.2.1.1
admin: up
state: present
- type: ipv6
remote_asn: 64901
ip: 2001:100:1:1::1
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
- type: ipv6
remote_asn: 64901
ip: 2001:100:2:1::1
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
state: present
dellos_snmp:
snmp_community:
- name: public
access_mode: ro
state: present
hostname: leaf2
ansible_ssh_user: xxxxx
ansible_ssh_pass: xxxxx
ansible_network_os: dellos10
dellos_system:
hash_algo:
algo:
- name: ecmp
mode: crc
state: present
dellos_interface:
ethernet 1/1/1:
desc: "Connected to Spine 1"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.1.17.2/24
ipv6_and_mask: 2001:100:1:11::2/64
state_ipv6: present
ethernet 1/1/9:
desc: "Connected to Spine 2"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.2.17.2/24
ipv6_and_mask: 2001:100:2:11::2/64
dellos_bgp:
asn: 64802
router_id: 100.0.2.2
address_family_ipv4: true
address_family_ipv6: true
best_path:
as_path: multipath-relax
as_path_state: present
med:
- attribute: missing-as-worst
state: present
neighbor:
- type: ipv4
remote_asn: 64901
ip: 100.1.18.1
admin: up
state: present
- type: ipv4
remote_asn: 64901
ip: 100.1.17.1
admin: up
state: present
- type: ipv4
remote_asn: 64901
ip: 100.2.17.1
admin: up
state: present
- type: ipv6
remote_asn: 64901
ip: 2001:100:1:11::1
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
- type: ipv6
remote_asn: 64901
ip: 2001:100:2:11::1
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
dellos_snmp:
snmp_community:
- name: public
access_mode: ro
state: present
hostname: leaf3
ansible_ssh_user: xxxxx
ansible_ssh_pass: xxxxx
ansible_network_os: dellos10
dellos_system:
hash_algo:
algo:
- name: ecmp
mode: crc
state: present
dellos_interface:
ethernet 1/1/1:
desc: "Connected to Spine 1"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.1.33.2/24
ipv6_and_mask: 2001:100:1:21::2/64
state_ipv6: present
ethernet 1/1/9:
desc: "Connected to Spine 2"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.2.33.2/24
ipv6_and_mask: 2001:100:2:21::2/64
dellos_bgp:
asn: 64803
router_id: 100.0.2.3
address_family_ipv4: true
address_family_ipv6: true
best_path:
as_path: multipath-relax
as_path_state: present
med:
- attribute: missing-as-worst
state: present
neighbor:
- type: ipv4
remote_asn: 64901
ip: 100.1.33.1
admin: up
state: present
- type: ipv4
remote_asn: 64901
ip: 100.2.33.1
admin: up
state: present
- type: ipv6
remote_asn: 64901
ip: 2001:100:1:21::1
admin: up
state: present
- type: ipv6
remote_asn: 64901
ip: 2001:100:1:22::1
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
- type: ipv6
remote_asn: 64901
ip: 2001:100:2:21::1
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
dellos_snmp:
snmp_community:
- name: public
access_mode: ro
state: present
hostname: leaf4
ansible_ssh_user: xxxxx
ansible_ssh_pass: xxxxx
ansible_network_os: dellos10
dellos_system:
hash_algo:
algo:
- name: ecmp
mode: crc
state: present
dellos_interface:
ethernet 1/1/5:
desc: "Connected to Spine 1"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.1.49.2/24
ipv6_and_mask: 2001:100:1:31::2/64
state_ipv6: present
ethernet 1/1/17:
desc: "Connected to Spine 2"
mtu: 9216
portmode:
admin: up
switchport: False
ip_and_mask: 100.2.49.2/24
ipv6_and_mask: 2001:100:2:31::2/64
state_ipv6: present
dellos_bgp:
asn: 64804
router_id: 100.0.2.4
address_family_ipv4: true
address_family_ipv6: true
best_path:
as_path: multipath-relax
as_path_state: present
med:
- attribute: missing-as-worst
state: present
neighbor:
- type: ipv4
remote_asn: 64901
ip: 100.1.49.1
admin: up
state: present
- type: ipv4
remote_asn: 64901
ip: 100.2.49.1
admin: up
state: present
- type: ipv6
remote_asn: 64901
ip: 2001:100:1:31::1
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
- type: ipv6
remote_asn: 64901
ip: 2001:100:2:31::1
admin: up
address_family:
- type: ipv4
activate: false
state: present
- type: ipv6
activate: true
state: present
state: present
dellos_snmp:
snmp_community:
- name: public
access_mode: ro
state: present
Step 3
Create a playbook called datacenter.yaml:
---
- hosts: datacenter
gather_facts: no
connection: network_cli
roles:
- Dell-Networking.dellos-interface
- Dell-Networking.dellos-bgp
- Dell-Networking.dellos-snmp
Step 4
Execute the playbook:
ansible-playbook -i inventory.yaml datacenter.yaml
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