This command enables Path Computation Element communications Protocol (PCEP), and enters the context to configure PCEP parameters.
The no form of the command disables PCEP.
This command enables the context to configure PCC parameters.
This command configures the PCEP session dead timer value, which is the amount of time a PCEP speaker (PCC or PCE) will wait after the receipt of the last PCEP message before declaring its peer down.
The keep-alive mechanism is asymmetric, meaning that each PCEP speaker can propose a different dead timer value to its peer to use to detect session timeout.
The no form of the command returns the dead timer to the default value.
dead-timer 120
This command configures the PCEP session keep-alive value. A PCEP speaker (PCC or PCE) must send a keep-alive message if no other PCEP message is sent to the peer at the expiry of this timer. This timer is restarted every time a PCEP message or keep-alive message is sent.
The keep-alive mechanism is asymmetric, meaning that each peer can use a different keep-alive timer value at its end.
The no form of the command returns the keep-alive timer to the default value.
keepalive 30
This command configures the local address of the PCEP speaker.
The PCEP protocol operates over TCP using destination TCP port 4189. The PCE client (PCC) always initiates the connection. Once the user configures the PCEP local address and the peer address on the PCC, the latter initiates a TCP connection to the PCE. When the connection is established, the PCC and PCE exchange OPEN messages, which initializes the PCEP session and exchanges the session parameters to be negotiated.
The PCC always checks first if the remote PCE address is reachable out-of-band via the management port. If not, it will check if the remote PCE address is reachable in-band. When the session comes up out-of-band, the system IP address is always used. The local address configured by the user is only used for in-band sessions, and is otherwise ignored.
The no form of the command removes the configured local address of the PCEP speaker.
This command configures the maximum number of PCE-initiated SR-TE LSPs that can be created by the router.
The no form of the command sets this value to the default.
max-srte-pce-init-lsps 8191
This command configures the IP address of a peer PCEP speaker. The address is used as the destination address in the PCEP session messages to a PCEP peer.
The preference parameter allows the PCC to select the preferred PCE when both have their PCEP sessions successfully established. A maximum of two PCEP peers is supported.
The PCE peer that is not in overload is always selected by the PCC as the active PCE. However, if neither of the PCEs are signaling the overload state, the PCE with the higher numerical preference value is selected, and in case of a tie, the PCE with the lower IP address is selected.
The no form of the command removes the specified peer PCEP speaker.
This command configures the redelegation timer for PCE-initiated LSPs.
The no form of the command sets this value to the default.
redelegation-timer 90
This command enables the inclusion of LSP path constraints in the PCE report messages sent from the PCC to a PCE.
In order for the PCE to know about the original constraints for an LSP which is delegated, but for which there is no prior state in its LSP database, such as if no PCReq message was sent for the same PLSP-ID, the following proprietary behavior is observed:
The no form of the command disables the above behavior in case of interoperability issues with third-party PCE implementations.
report-path-constraints
This command administratively disables the PCC or PCE process.
The following PCE parameters can only be modified when the PCEP session is shut down:
The unknown-message-rate PCE parameter can be modified without shutting down the PCEP session.
The following PCC parameters can only be modified when the PCEP session is shut down:
The following PCC parameters can be modified without shutting down the PCEP session:
shutdown
This command configures the state timer for PCE-initiated LSPs. The state timer must be set to a value greater than the redelegation timer.
The no form of the command sets this value to the default.
state-timer 180 action remove
This command configures the maximum rate of unknown messages which can be received on a PCEP session.
When the rate of received unrecognized or unknown messages reaches the configured limit, the PCEP speaker closes the session to the peer.
The no form of the command returns the unknown message rate to the default value.
unknown-message-rate 10
This command enables the context to configure PCE parameters.