op-mode: T7764: Add 'vlan-to-vni statistics' op-mode command

[l0crian1]

Change summary

VLAN-to-VNI interface statistics are not returned with any existing op-mode command. This would provide that useful information. The following commands would be added:

show interfaces vxlan <interface name> statistics
show interfaces vxlan <interface name>vlan <vlan-id> statistics

The output would like like this:

show interfaces vxlan vxlan0 statistics
Interface      VLAN    VNI    Rx Packets    Rx Bytes    Tx Packets    Tx Bytes
-----------  ------  -----  ------------  ----------  ------------  ----------
vxlan0           10   1001             0           0             0           0
vxlan0           20   1002             0           0             0           0

show interfaces vxlan vxlan0 vlan 10 statistics
Interface      VLAN    VNI    Rx Packets    Rx Bytes    Tx Packets    Tx Bytes
-----------  ------  -----  ------------  ----------  ------------  ----------
vxlan0           10   1001             0           0             0           0

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, renaming)
• Refactoring (no functional changes)
• Migration from an old Vyatta component to vyos-1x, please link to related PR inside obsoleted component
• Other (please describe):

Related Task(s)

https://vyos.dev/T7764

Related PR(s)

How to test / Smoketest result

Configure a vxlan interface with vlan-to-vni mappings and attach to bridge:

set interfaces vxlan vxlan1 parameters external
set interfaces vxlan vxlan1 port '4789'
set interfaces vxlan vxlan1 source-address '10.5.5.5'
set interfaces vxlan vxlan1 vlan-to-vni 10 description 'Cust-A'
set interfaces vxlan vxlan1 vlan-to-vni 10 vni '1001'
set interfaces vxlan vxlan1 vlan-to-vni 20 description 'Cust-B'
set interfaces vxlan vxlan1 vlan-to-vni 20 vni '1002'

set interfaces bridge br0 member interface vxlan1

Run commands:

vyos@PE2:~$ show interfaces vxlan vxlan1 vlan-to-vni statistics
Interface      VLAN    VNI    Rx Packets    Rx Bytes    Tx Packets    Tx Bytes
-----------  ------  -----  ------------  ----------  ------------  ----------
vxlan1           10   1001             0           0             0           0
vxlan1           20   1002             0           0             0           0

vyos@PE2:~$ show interfaces vxlan vxlan1 vlan-to-vni vlan 10 statistics
Interface      VLAN    VNI    Rx Packets    Rx Bytes    Tx Packets    Tx Bytes
-----------  ------  -----  ------------  ----------  ------------  ----------
vxlan1           10   1001             0           0             0           0

Checklist:

• I have read the CONTRIBUTING document
• I have linked this PR to one or more Phabricator Task(s)
• I have run the components SMOKETESTS if applicable
• My commit headlines contain a valid Task id
• My change requires a change to the documentation
• I have updated the documentation accordingly

[github-actions]

👍
No issues in PR Title / Commit Title

[c-po]

Other then my minor two changes its a nice and welcomed extension.

[github-actions]

CI integration 👍 passed!

Details

CI logs

• CLI Smoketests (no interfaces) 👍 passed
• CLI Smoketests VPP 👍 passed
• CLI Smoketests (interfaces only) 👍 passed
• Config tests 👍 passed
• Config tests VPP 👍 passed
• RAID1 tests 👍 passed
• TPM tests 👍 passed

[jestabro]

Works as expected; typo fixed.