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NE20E-S V800R010C10SPC500 Configuration Guide - Virtual Access 01

This is NE20E-S V800R010C10SPC500 Configuration Guide - Virtual Access
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Configuring L3VPN Access over VCs (Multiple Base Stations Are Located on the Same Network Segment)

Configuring L3VPN Access over VCs (Multiple Base Stations Are Located on the Same Network Segment)

This section describes how to configure Layer 3 virtual private network (L3VPN) access over virtual circuits (VCs) to implement end-to-end Ethernet service bearing when multiple base stations are located on the same network segment.

Context

When multiple base stations are located on the same network segment, you must bind a vBridge interface to an L3VPN instance and assign an IP address to this interface on a master to implement L3VPN access over VCs.

Prerequisites

Before configuring L3VPN access over VCs (when multiple base stations are located on the same network segment), complete the following tasks:
  • Configure an Interior Gateway Protocol (IGP) to implement the interworking between a master and a radio network controller site gateway (RSG).
  • Configure multiprotocol label switching traffic engineering (MPLS TE) or MPLS Label Distribution Protocol (LDP) to provide a public tunnel for the L3VPN.
  • Configure basic L3VPN functions on the master.
  • Configure IP RAN virtual cluster access.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface vbridge interface-number

    The vBridge interface view is displayed.

  3. Run ip binding vpn-instance vpn-instance-name

    The vBridge interface is bound to a specified VPN instance.

  4. Run ip address ip-address { mask | mask-length }

    An IP address is assigned to the vBridge interface.

    NOTE:
    • The IP addresses of a vBridge interface and its bound AC interface must be on the same network segment.
    • To prevent route recalculations during a primary/secondary master switchover and implement a rapid switchover, configure the same IP address for the primary and secondary masters' vBridge interfaces that have been bound to the same AC interface.

  5. Run commit

    The configuration is committed.

Verifying the Configuration

  • Run the ping command to check network continuity. The command output shows that the master and RSG can ping each other.

    [~HUAWEI] ping -a 10.1.1.2 1.2.0.1
      PING 1.2.0.1: 56  data bytes, press CTRL_C to break
        Reply from 1.2.0.1: bytes=56 Sequence=1 ttl=253 time=90 ms
        Reply from 1.2.0.1: bytes=56 Sequence=2 ttl=253 time=70 ms
        Reply from 1.2.0.1: bytes=56 Sequence=3 ttl=253 time=120 ms
        Reply from 1.2.0.1: bytes=56 Sequence=4 ttl=253 time=110 ms
        Reply from 1.2.0.1: bytes=56 Sequence=5 ttl=253 time=100 ms
    
      --- 1.2.0.1 ping statistics ---
        5 packet(s) transmitted
        5 packet(s) received
        0.00% packet loss
        round-trip min/avg/max = 70/98/120 ms
  • Run the display ip routing-table vpn-instance command to view routing information. The command output shows that the master and RSG have available routes to each other.

    [~HUAWEI] display ip routing-table vpn-instance IPRAN
    Route Flags: R - relay, D - download
    to fib, T - to vpn-instance, B - black hole route
    ------------------------------------------------------------------------------
    Routing Tables: IPRAN
    Destinations : 6 Routes : 6
    Destination/Mask Proto Pre Cost Flags NextHop Interface
    192.168.1.0/24 Direct 0 0 D 192.168.1.1 VBridge1
    192.168.1.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
    192.168.1.100/32 Direct 0 0 D 127.0.0.1 InLoopBack0
    192.168.1.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
    192.168.2.0/24 IBGP 255 0 RD 5.5.5.5 Tunnel10
    255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
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Updated: 2019-01-03

Document ID: EDOC1100055113

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