The alc module

The alc module provides the following interfaces to interact with certain subscriber-management related protocol packets:

• The alc.Radius class

• The alc.Dhcpv4 class

• The alc.Dhcpv6 class

• The alc.Pppoe class/The alc.Ppp class/The alc.Pap class/The alc.Chap class

• The alc.Diameter class

• The alc.Gtp1c class

• The alc.Gtp2c class

• The alc.Pfcp class

Additionally, the following objects allow interaction with subscriber-management objects:

• The alc.Esm class

• The alc.Dtc class

The cache object allows interaction with a persistent, per-policy key-value datastore:

• The alc.cache context-manager

The alc module also contains some utility modules:

• alc.tlv

• alc.util

To use these APIs, a Python 3 python-script and python-policy need to be configured on SR OS. See “Python script support for ESM” in the 7450 ESS, 7750 SR, and VSR Triple Play Service Delivery Architecture Guide for more information.