sFlow role
This role facilitates the configuration of global and interface level sFlow attributes. It supports the configuration of sFlow collectors at the global level, enable/disable, and specification of sFlow polling-interval, sample-rate, max-datagram size, and so on are supported at the interface and global level. This role is abstracted for dellos9.
The dellos-sflow role requires an SSH connection for connectivity to a Dell EMC Networking device. You can use any of the built-in OS connection variables.
Installation
ansible-galaxy install Dell-Networking.dellos-sflow
Role variables
- Role is abstracted using the ansible_network_os variable that can take the dellos9 value
- If dellos_cfg_generate is set to true, the variable generates the role configuration commands in a file
- Any role variable with a corresponding state variable set to absent negates the configuration of that variable
- Setting an empty value for any variable negates the corresponding configuration
- dellos_sflow (dictionary) contains keys along with interface name (dictionary)
- Interface name can correspond to any of the valid dellos9 physical interfaces with the unique interface identifier name
- Interface name must be in format; physical interface name can be in fortyGigE 1/1 format for dellos9 devices
- Variables and values are case-sensitive
dellos_sflow keys
Key | Type | Description | Support |
---|---|---|---|
sflow_enable |
boolean: true,false* | Enables sFlow at a global level | dellos9 |
collector |
list | Configures collector information (see collector.* ); only two collectors can be configured on dellos9 devices |
dellos9 |
collector.collector_ip |
string (required) | Configures an IPv4/IPv6 address for the collector | dellos9 |
collector.agent_addr |
string (required) | Configures an IPv4/IPv6 address for the sFlow agent to the collector | dellos9 |
collector.udp_port |
integer | Configures UDP port range at the collector level (1 to 65535) | dellos9 |
collector.max_datagram_size |
integer | Configures the maximum datagram size for the sFlow datagrams generated (400 to 1500) | dellos9 |
collector.vrf |
boolean: true,false* | Configures the management VRF to reach collector if set to true; can be enabled only for IPv4 collector addresses | dellos9 |
polling_interval |
integer | Configures the global default counter polling-interval (15 to 86400) | dellos9 |
sample_rate |
integer | Configures the global default sample-rate (256 to 8388608) | dellos9 |
extended_switch |
boolean: true,false* | Enables packing extended information for the switch if set to true | dellos9 |
max_header_size |
boolean: true,false* | Enables extended header copy size of 256 bytes if set to true at the global level | dellos9 |
NOTE: Asterisk (*) denotes the default value if none is specified.
interface name keys
Key | Type | Notes |
---|---|---|
sflow_enable |
boolean: true,false* | Enables sFlow at the interface level |
ingress_enable |
boolean: true,false* | Enables ingress sFlow at the interface level |
polling_interval |
integer | Configures the interface level default counter polling-interval (15 to 86400) |
max_header_size |
boolean: true,false* | Enables extended header copy size of 256 bytes if set to true at the interface level |
sample_rate |
integer | Configures the interface level default sample-rate (256 to 8388608) |
NOTE: Asterisk (*) denotes the default value if none is specified.
Connection variables
Ansible Dell EMC Networking roles require connection information to establish communication with the nodes in your inventory. This information can exist in the Ansible group_vars or host_vars directories,or inventory or in the playbook itself.
Key | Required | Choices | Description |
---|---|---|---|
ansible_host |
yes | Specifies the hostname or address for connecting to the remote device over the specified transport | |
ansible_port |
no | Specifies the port used to build the connection to the remote device; if value is unspecified, the ANSIBLE_REMOTE_PORT option is used; it defaults to 22 | |
ansible_ssh_user |
no | Specifies the username that authenticates the CLI login for the connection to the remote device; if value is unspecified, the ANSIBLE_REMOTE_USER environment variable value is used | |
ansible_ssh_pass |
no | Specifies the password that authenticates the connection to the remote device | |
ansible_become |
no | yes, no* | Instructs the module to enter privileged mode on the remote device before sending any commands; if value is unspecified, the ANSIBLE_BECOME environment variable value is used, and the device attempts to execute all commands in non-privileged mode |
ansible_become_method |
no | enable, sudo* | Instructs the module to allow the become method to be specified for handling privilege escalation; if value is unspecified, the ANSIBLE_BECOME_METHOD environment variable value is used |
ansible_become_pass |
no | Specifies the password to use if required to enter privileged mode on the remote device; if ansible_become is set to no this key is not applicable |
|
ansible_network_os |
yes | dellos6/dellos9/dellos10, null* | Loads the correct terminal and cliconf plugins to communicate with the remote device |
NOTE: Asterisk (*) denotes the default value if none is specified.
Dependencies
The dellos-sflow role is built on modules included in the core Ansible code. These modules were added in Ansible version 2.2.0.
Example playbook
This example uses the dellos.dellos-sflow role to configure sFlow attributes at interface and global level. It creates a hosts file with the switch details and corresponding variables. The hosts file should define the ansible_network_os variable with the corresponding Dell EMC networking OS name.
When dellos_cfg_generate is set to true, the variable generates the configuration commands as a .part file in build_dir path. By default, the variable is set to false. It writes a simple playbook that only references the dellos-sflow role. By including the role, you automatically get access to all of the tasks to configure sFlow features.
Sample hosts file
leaf1 ansible_host= <ip_address>
Sample host_vars/leaf1
hostname: leaf1
ansible_become: yes
ansible_become_method: xxxxx
ansible_become_pass: xxxxx
ansible_ssh_user: xxxxx
ansible_ssh_pass: xxxxx
ansible_network_os: dellos9
build_dir: ../temp/dellos9
dellos_sflow:
sflow_enable: true
collector:
- collector_ip: 1.1.1.1
agent_addr: 2.2.2.2
udp_port: 2
max_datagram_size: 1000
vrf: true
state: present
polling_interval: 30
sample_rate: 1024
extended_switch : true
max_header_size: true
fortyGigE 1/1:
sflow_enable : true
ingress_enable: true
polling_interval: 30
sample_rate: 1024
max_header_size: true
Simple playbook to setup sflow - leaf.yaml
- hosts: leaf1
roles:
- Dell-Networking.dellos-sflow
Run
ansible-playbook -i hosts leaf.yaml
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