A large-scale network can also have numerous firewalls that use the mapping information to enforce policies.
You can reduce the resources that the firewalls and information sources use in the querying process by configuring some firewalls to acquire mapping information through redistribution instead of direct querying.
Redistribution also enables the firewalls to enforce user-based policies when users rely on local sources for authentication (such as regional directory services) but need access to remote services and applications (such as global data center applications).
https://docs.paloaltonetworks.com/pan-os/10-0/pan-os-admin/user-id/deploy-user-id-in-a-large- scale-network.html#id73908ad1-63ee-440b-bb58-859ace1ce34d

Example output:
> show system state filter-pretty sys.s1.p1.phy
sys.s1.p1.phy: {
link-partner: { },
media: CAT5,
type: Ethernet,
}
https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000Cld3CAC

https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/high-availability/configure-ha-clustering