Changes in Release 1.5¶

New Functionality in Release 1.5.0¶

Multi-provider topologies
Running multiple lab instances on Linux Servers
Split large libvirt topology into smaller vagrant up batches
Use custom network/bridge name and IP subnet for vagrant-libvirt management network
Create DHCP bindings for the whole vagrant-libvirt management subnet
‘loopback’ link type can be used to create additional loopback interfaces
netlab show devices command displays valid device types
Split topology-defaults.yml into numerous smaller files
Strict validation of core and module attributes

Breaking changes¶

Release 1.5.0 introduced strict validation of topology attributes. We ran extensive tests, including all the integration tests, so we’re pretty sure that whatever we ever wanted to use still works. Obviously it’s possible you used a combination of attributes that we did not test, or that we did not check attribute types in the past and unexpected types just worked.

We had to change the underlying data structure from lists of attributes to hierarchical dictionaries, we expect most plugins that added new core- or module attributes to break. Please take a look at the updated plugins in netsim/extra directory to see how your plugin should add new attributes (or open a GitHub case and we’ll help you).

Bug Fixes in Release 1.5.0-post4¶

Include files from user’s home directory
Use formatted strings in ‘read topology’ error messages
Documentation: Missing pip install step on Ubuntu 20.04 (#754)
Integrate #754 into ‘netlab install ansible’ installation script

Bug Fixes in Release 1.5.0-post3¶

Include user defaults in ‘netlab show’ display
Include user defaults from multiple default files
Implement nic_adapter_count libvirt parameter
Add missing ‘loopback’ node attribute
SR OS: Filter for interfaces having the address family enabled
Update SR Linux CA file path to match latest Containerlab changes

Bug Fixes in Release 1.5.0-post2¶

Report ‘unknown command’ or ‘cannot load module’ in netlab CLI
Check the presence of topology snapshot file early in ‘netlab down’
Critical fix: remove the extra ‘—’ from ruamel-generated Ansible files

Bug Fixes in Release 1.5.0-post1¶

Extend attributes with extra_attributes before group init
Set low ‘bgp update-delay’ on Cisco IOS to speed up BGP convergence
Enabled EIGRP/IPv4 on IOS loopback interface
Convert values set via CLI into ints or bools if needed
Minor fixes to NX-OS templates

Documentation fixes:

Arista no longer provides vEOS Vagrant boxes
Prefer mutated Nexus 9300v boxes
Deprecate ‘extra_attributes’

Bug Fixes in Release 1.5.0¶

Identify malformed device definitions
Check for Nokia Ansible plugin only once per device
Junos MTU has to be applied to the main interface
FRR daemons not started
Use consistent interface name templates
Run integration tests on pull requests
Report fatal error when a configuration module cannot be loaded