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NE40E V800R010C10SPC500 Configuration Guide - User Access 01

This is NE40E V800R010C10SPC500 Configuration Guide - User Access
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Setting Tunnel Parameters on the LNS

Setting Tunnel Parameters on the LNS

Before establishing an L2TP tunnel, set parameters such as the source interface, tunnel board, number of tunnels that can be established, and the function of re-marking the priorities of packets after performing CAR.

Context

Each LNS group requires a source IP address (interface IP address) to communicate with the LAC. The NE40E determines the LNS group that processes the request from a certain LAC based on this IP address.

Perform the following steps on the NE40E:

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run lns-group group-name

    An LNS group is created and the LNS group view is displayed.

  3. (Optional) Run description description-information

    A description is configured for an LNS group.

  4. Run bind slot slot-id

    A tunnel board is bound to the LNS group.

    Multiple tunnel boards can be configured on the NE40E. You can specify the tunnel board for an LNS group. Multiple tunnel boards can be bound to an LNS group. The round robin load balancing is performed among the tunnel boards based on tunnels.

  5. Run bind source interface-type interface-number

    An interface is bound to the LNS group.

    The configuration of the IP of the source interface bounded to the LNS groups, of the tunnel source in the L2TP groups and of the RBS tunnel source of dual-device hot backup cannot be the same.

  6. (Optional) Run tunnel load-balance by-tunnel

    Tunnel load balancing based on the number of tunnels on tunnel boards bound to an LNS group is enabled.

  7. (Optional) Run tunnel load-balance by-session

    Tunnel load balancing based on the number of sessions on tunnel boards bound to an LNS group is enabled.

  8. Run quit

    The system view is displayed.

  9. (Optional) Run l2tp tunnel-limit tunnel-number

    Limit to the number of L2TP tunnels is configured.

    When the NE40E functions as an LNS, the system performance is degraded if too many L2TP tunnels are established. To prevent this, you can limit the number of L2TP tunnels.

  10. (Optional) Run l2tp slot slot-number block enable

    The block function is enabled.

    If the number of L2TP tunnels established on a tunnel board reaches the upper limit, you can enable the block function for the tunnel board. Then, L2TP tunnels cannot be established on the tunnel board.

  11. (Optional) Run l2tp lns fast-reply enable slot slot-id

    The tunnel board of an LNS is enabled to send packets to the network-side outbound interface board connected to an LAC based on hardware.

  12. (Optional) Run l2tp-group group-name

    An L2TP group is created, and the L2TP group view is displayed.

  13. (Optional) Run lns schedule after car

    The LNS is enabled to re-mark the priorities of service packets entering a tunnel after performing CAR.

    The configuration takes effect only for tunnels established after the command is run.

    NOTE:

    When an LNS is configured to re-mark the priorities of packets entering a tunnel after performing CAR, the LNS does not support last-mile QoS.

  14. (Optional) Run tunnel retrans-queue number

    The maximum number of concurrent L2TP sessions allowed for an L2TP tunnel is configured. Excess session requests are denied.

  15. Run commit

    The configuration is committed.

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Updated: 2019-01-03

Document ID: EDOC1100055031

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