Changes in Release 1.4¶
New Functionality in Release 1.4¶
MPLS/LDP support on Nokia SR OS
EVPN MPLS transport on Arista EOS and Nokia SR Linux
New address allocation algorithm for links with small IPv4 prefixes
Control allocation of VNI identifiers with vxlan.vlans attribute
Specify EVPN-enabled VLANs and VRFs with evpn.vlans and evpn.vrfs lists
Breaking changes¶
Release 1.4 introduced behind-the-scenes functionality that might break existing topologies:
vni attribute is assigned to VLANs only if the topology uses VXLAN module. In release 1.3, the vni attribute was assigned by the VLAN module.
vlan.auto_vni attribute is no longer used. Specify VXLAN-enabled VLANs with vxlan.vlans if you don’t want to assign vni values to all VLANs.
EVPN module using VXLAN transport still takes control of all VLANs with vni attribute and VRFs with evpn attribute, but it’s not recommended to rely on that behavior. Specify EVPN-enabled VLANs and VRFs with evpn.vlans and evpn.vrfs lists.
Flexible address allocation algorithm might change IP addresses on links with small IPv4 prefixes.
Node, VLAN, and VRF attributes are checked – topologies that used extra node attributes not related to configuration modules would no longer work.
Interface (node-to-link attachment) attributes are checked – topologies using extra interface attributes not related to configuration modules would no longer work.
The tests for unique VNI values are stricter and might break topologies that used duplicate VNI values in VLANs or VRFs.