Alcatel-Lucent 7750 SR-OS, Configuration Manual

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Filter Policies
7750 SR OS Router Configuration Guide Page 415
When using auto-generation of address prefixes inside an address prefix match list operators can:
• Specify one or more regex expression matches against SROS router configuration per list.
• Specify wildcard matches by specifying regex wildcard match expression (“.*”).
• Mix auto-generated entries with statically configured entries within a match list.
The following additional rules apply to auto-generated entries:
• Operational and administrative states of a given router configuration are ignored when
auto-generating address prefixes.
• Duplicates are not removed when populated by different auto-generation matches and
static configuration.
• A configuration will fail if auto-generation of address prefix would result in filer policy
resource exhaustion on a filter entry, system, or line-card level.
The following may apply to this feature:
If filter policy resources are not available for newly auto-generated address prefixes when a BGP
configuration changes, new address-prefixes will not be added to impacted match lists or filter
policies as applicable. An operator must free resources and change filter policy configuration or
must change BGP configuration to recover from this failure.
NOTE:
See Release notes and CLI section for details on what configuration supports address
prefix list auto-generation.