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NE40E V800R010C10SPC500 Configuration Guide - User Access 01

This is NE40E V800R010C10SPC500 Configuration Guide - User Access
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Licensing Requirements and Limitations for L2TP

Licensing Requirements and Limitations for L2TP

Licensing Requirements

BOM

License Control Item

Description

Minimum Version Requirement

81400210

NetEngine40E&80E L2TP Function License

Controllable feature:

This license controls the L2TP LNS & LTS function on a device. Each device requires one such license.

V800R008

Restrictions and Guidelines

Restrictions

Guidelines

Impact

The LPUI-51-L board cannot be used as a network-side board for L2TP/virtual access.

Deploy relevant services on a non-LPUI-51-L board.

Relevant services do not take effect.

  • In L2TP user access scenarios, the isolation between online and offline users is not supported.
  • HQoS is not supported on an LTS. After HQoS is configured on the outbound interface of an LNS, TM implements HQoS for the traffic before it passes through the NP.
  • DAA/EDSG is not supported on an LAC or LTS. DAA/EDSG only supports CAR on an LNS. If SQ is implemented, traffic volume quotas of users will be taken up.
  • Forwarding performance of an LTS and LNS:ingress board (A)+tunnel board (B)+egress board (C)

    If A=C, B=C, or A=B=C, and no SQ is configured and no replication service is deployed, the board's maximum forwarding bandwidth can be achieved. If the preceding conditions are not met, the forwarding performance reduces by 50%.

  • User-side sampling is not supported on an LAC/LTS/LNS in L2TP access scenarios.
  • Separate collection of IPv4 traffic statistics and IPv6 traffic statistics is not supported on an LAC/LTS in L2TP scenarios.
  • Flexible access to a VPN is not supported for LAC/LTS/LNS users in L2TP access scenarios.
  • The bound tunnel source interface on the LNS side cannot be a PWIF interface.

None

None

The following types of boards are supported on the network side in L2TP access scenarios: LPUF-51-E/LPUI-51-E/LPUI-51-S/LPUI-51-CM/LPUF-120/LPUF-120-B/LPUF-120-E/LPUI-102-E/LPUI-120/LPUI-120-B/LPUI-120-L/LPUI-52-E/LPUI-120-E/LPUI-120-CM/LPUF-240/LPUF-240-B/LPUF-240-E/LPUI-240/LPUI-240-B/LPUI-240-CM/LPUI-240-L/LPUF-480/LPUF-480-B/LPUI-480/LPUI-480-B/LPUI-480-L/LPUF-480-E/LPUI-480-CM/LPUF-400-E boards.

None

None

In L2TP LNS user traffic forwarding scenarios, the high-performance forwarding mode can be configured only when the board where the outbound interface resides has an eTM subcard installed. Otherwise, you need to run the forward-mode { through | loopback } l2tp command to configure the board from which LNS users go online to work in half-line-rate forwarding mode.

If the board where the outbound interface resides does not have an eTM subcard installed, run the forward-mode loopback l2tp command to configure the LNS user access board to work in half-line-rate forwarding mode.

If the half-line-rate forwarding mode is not configured, packet loss may occur during LNS user traffic forwarding.

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Updated: 2019-01-03

Document ID: EDOC1100055031

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