Batfish v2023.12.16

What's Changed ❄️

As usual, this release includes many performance improvements and dependency upgrades for security. It also includes support for several new and noteworthy features:

• Symbolic routing policy analysis via bf.q.searchRoutePolicies supports many new route attributes including next-hop changes, and it is much faster and more scalable. It also accepts input via named community-lists, new constraints on AS Path, and improved output such as picking sensible default values.
• A new question bf.q.snmpCommunityClients to check if an SNMP community permits specified client IPs.
• Routing policy can match on the cluster-list length or number of communities in a BGP advertisement.
• Track statements can now check for routes in the BGP RIB in addition to the Main RIB.
• BGP, IBGP, confederation, and route reflection have been substantially improved for advanced use cases.
• OSPF supports vendors like FRR that can apply filtering specific to LSA type.
• OSPF area has been expanded from a signed 32-bit number to a signed 64-bit number to support areas >= 2^31.
• Administrative distance expanded from 8-bit (0-255) up to 32-bit administrative distances.

This release contains many bug fixes to many vendors, including:

• Arista: improved robustness to invalid configurations.
• Junos syntax improvements, especially relating to names, apply-groups, and hierarchical configuration. Improved support for conditional filtering, and the addition of small new features such as per-BGP-neighbor preference.
• Cisco IOS syntax for HSRP and interfaces, plus EIGRP improvements by @NobutakaNiiya.
• FRR: miscellaneous BGP improvements, especially regarding non-standard network statement and route-map behavior prior to FRR 7.1.
• Palo Alto Networks App-ID support.
• SONiC YAML better tolerates extra unused whitespace.

New Contributors

• @rynogawa made their first contribution in #8596
• @ktaegyum made their first contribution in #8613
• @NobutakaNiiya made their first contribution in #8591
• @backesj made their first contribution in #8743
• @samarthdhingra made their first contribution in #8770
• @saidvandeklundert made their first contribution in #8828
• @eterny13 made their first contribution in #8795
• @zergling-aws made their first contribution in #8839
• @pranavbj-amzn made their first contribution in #8875

We also thank many users who reported bugs on Slack, via GitHub, or anonymously but who many not have been auto-tagged by GitHub in these release notes. A best effort list: Ryan Harden on Slack, @bcavns01, @jaswant6068, @pawelhaj, @racsoce, and @sebastianw.

Full Changelog: v2022.09.08...v2023.12.16