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Configuration Guide - VPN

S7700 and S9700 V200R013C00

This document describes the configurations of VPN, including GRE, IPSec, BGP/MPLS IP VPN, BGP/MPLS IPv6 VPN, VLL, PWE3, VPLS, L2VPN Access to L3VPN.
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Licensing Requirements and Limitations for VLL

Licensing Requirements and Limitations for VLL

Involved Network Elements

Other network elements are not required.

License Requirements

You can use the VLL feature only after the MPLS function is enabled. The MPLS function is controlled by a license. By default, MPLS is disabled on a new device. To use the MPLS function, apply for and purchase the license from the equipment supplier.

Version Requirements

Table 5-8  Products and versions supporting VLL

Product

Product Model

Software Version

S7700

S7703, S7706, S7712

V100R003C01, V100R006C00, V200R001(C00&C01), V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007C00, V200R008C00, V200R009C00, V200R010C00, V200R011C10, V200R012C00, V200R013C00

S7703 PoE

V200R013C00

S7706 PoE

V200R013C00

S9700

S9703, S9706, S9712

V200R001(C00&C01), V200R002C00, V200R003C00, V200R005C00, V200R006C00, V200R007(C00&C10), V200R008C00, V200R009C00, V200R010C00, V200R011C10, V200R012C00, V200R013C00

NOTE:
For details about software mappings, visit Hardware Query Tool and search for the desired product model.

Feature Limitations

  • The SA series cards do not support VLL.

    In V200R006 and earlier versions, the X1E series cards do not support VLL.

    The XGE interface connected to ACU2, ET1D2IPS0S00, ET1D2FW00S00, ET1D2FW00S01, or ET1D2FW00S02 does not support the VLL function.

  • When VLL is deployed on the ES0DG48CEAT0, ES1D2G48SFA0, or ES0DG48TFA00 card of the S7700, or the EH1D2T36SEA0, EH1D2G48SFA0, EH1D2G48TFA0, or ET1D2T36SEA0 card of the S9700, the card processes each packet as follows:
    • Removes the VLAN tag from the packet if the PVID on the outbound interface is the same as the VLAN ID of the packet.
    • Retains the VLAN tag if the PVID on the outbound interface is different from the VLAN ID of the packet.
  • For E series and F series cards of S7700&S9700, do not add the PW to VLAN 1. If the PW is added to VLAN 1, the AC joins VLAN 1 in untagged mode and VLAN tags of packets are removed.

  • When you configure L2VPN on a switch, the following configuration is recommended if the PW-side interface is a 100GE interface on the EE series cards or a 40GE interface split from the 100GE interface.
    • When the device functions as the PE device, you can configure the enhanced load balancing function to load balance outgoing traffic on the card by the source MAC address, destination MAC address, source port number, and VLAN based on the packet type. For details, see Configuring a Load Balancing Mode in "Link Aggregation Configuration" in the Configuration Guide - Ethernet Switching.
      NOTE:
      To configure enhanced load balancing, perform the following operations:
      • Run the load-balance-profile profile-name command in the system view to create a load balancing profile and enter the load balancing profile view.
      • Run the mpls field [ dip | dmac | l4-dport | l4-sport | protocol | sip | smac | sport | vlan ] * command to specify the load balancing mode of MPLS packets in the profile.

      If the PE device equipped with the specified card also functions as the P device, run the mpls field [ dip | dmac | l4-dport | l4-sport | protocol | sip | smac | sport | vlan ] * top-label 2nd-label command to enable load balancing by the label, source MAC address, destination MAC address, source port number, and VLAN.

    • When the switch functions as the P device, packet loss may occur if traffic passing through each PW exceeds 30 Gbit/s. Run the display traffic-statistics l2vpn interface interface-type interface-number command on the PE device to view VLL traffic statistics on the AC-side interface.
  • During the L2VPN configuration on a switch equipped with the ES1D2C04HX2S, ES1D2C04HX2E, ES1D2H02QX2S, ES1D2H02QX2E, EH1D2C04HX2S, EH1D2C04HX2E, EH1D2H02QX2S, or EH1D2H02QX2E series cards: When the switch functions as the P device, it is recommended that traffic passing through each PW do not exceed 30 Gbit/s.
  • By default, link type negotiation is enabled globally on the device. If a VLANIF interface is used as an AC-side interface for VLL, the configuration conflicts with link type negotiation. In this case, run the lnp disable command in the system view to disable link type negotiation.

  • A PE device receives Layer 2 protocol packets such as STP, VBST, SMLK, LDT/LBDT, LACP, 3AH, 1AG, Y.1731, HGMP, LLDP, DLDP, GVRP, HVRP, DAD, LNP, VCMP, RRPP, ERPS, SEP, and BFD packets from an AC interface, and determines whether it needs to process the packets. If not (for example, Layer 2 protocols are disabled), the PE device transparently transmits the Layer 2 protocol packets through the VLL.
  • When the L2VPN function is configured on a switch and the AC-side outbound interface is configured as an Eth-Trunk interface, only the X series cards running V2R13C00 and later versions support IP address-based load balancing.
  • If the PW-side interface is a Layer 3 interface switched by the undo portswitch command, the AC-side interface cannot be a Layer 3 interface or subinterface belonging to a Layer 3 interface; otherwise, traffic forwarding is abnormal.

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Updated: 2019-04-08

Document ID: EDOC1100065751

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