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Learning OpenStack Networking (Neutron) by James Denton

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Per-tenant quotas

To prevent system resources from being exhausted, Neutron supports per-tenant quota limits via the quotas extension. Every tenant is bound to a default quota that is set by the administrator in the Neutron configuration file:

[quotas]
# resource name(s) that are supported in quota features
# quota_items = network,subnet,port
 
# number of networks allowed per tenant, and minus means unlimited
# quota_network = 10
 
# number of subnets allowed per tenant, and minus means unlimited
# quota_subnet = 10
 
# number of ports allowed per tenant, and minus means unlimited
# quota_port = 50

# number of security groups allowed per tenant, and minus means unlimited
# quota_security_group = 10

# number of security group rules allowed per ...

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