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Route Limits

Peer configuration options

import-limit4 and import-limit6 specify how many prefixes can be accepted from the peer after filtering. They default to 1,000,000 IPv4 and 300,000 IPv6 prefixes. These may be set automatically from the peer's PeeringDB page by enabling auto-import-limits.

Note

Pathvector 6.3.2 and earlier used a default import-limit6 of 200,000, which is below the size of the full IPv6 table carried by some transit providers. If you peer with a full-table IPv6 provider on those versions, set import-limit6 explicitly.

receive-limit4 and receive-limit6 are like import limits but before filtering. keep-filtered must be enabled for these to work.

export-limit4 and export-limit6 set the maximum number of prefixes to export to a peer.

Policy violation actions

import-limit-violation, receive-limit-violation, and export-limit-violation control what happens when a route limit is tripped. The default is disable.

warn logs a warning

block stops sending or accepting route updates after the configured number of routes have been processed

restart restarts the session

disable disables the session until it's manually enabled

See Troubleshooting if a session is shut down with Automatic shutdown: Route limit exceeded.