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NE40E-M2K V800R011C10 配置指南 - MPLS 02
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配置L3VPN over LDP over TE场景下的CBTS示例

配置L3VPN over LDP over TE场景下的CBTS示例

介绍配置L3VPN over LDP over TE场景下的CBTS的配置过程。

组网需求

如图3-29所示，CE1和CE2属于同一L3VPN，分别通过PE1和PE2接入公网。CE1和CE2之间存在多种业务流量，当普通业务流量过大时，重要业务流量的转发将受到影响。为保证重要业务的转发质量，可以配置CBTS功能。配置了CBTS功能后，不同业务等级的流量会有指定的隧道承载，这样可有效保证高业务等级的重要业务的转发质量。

假定本组网中，指定承载重要业务的隧道分别为Tunnel 1，其他业务等级的报文均由Tunnel 2承载。

图3-29 L3VPN over LDP over TE场景下的CBTS配置组网图

本例中interface1、interface2分别代表GE0/1/0、GE0/2/0。



配置注意事项

在配置过程中，需注意：隧道的目的地址必须是隧道末节点的LSR ID。

配置思路

采用如下的思路完成L3VPN over LDP over TE场景下的CBTS配置：

  1. 配置各节点的接口IP地址及作为LSR ID的Loopback地址，并配置IGP协议发布路由。

  2. 在支持TE的区域使能OSPF TE，创建MPLS TE隧道，并配置隧道允许通过的服务等级的报文。

  3. 在非TE域使能MPLS LDP，并在TE边界上配置LDP远端对等体。

  4. 配置TE的转发邻接特性。

  5. 在L3VPN接入的节点配置复杂流分类，在LDP over TE的链路上配置简单流分类

数据准备

为完成此配置例，需准备如下的数据：

  • OSPF进程号，所在的区域

  • LSP的建立触发策略

  • P1和P2的远端对等体名称和IP地址

  • 隧道沿途的链路的带宽属性

  • 节点P1和P2上隧道接口的接口编号、IP地址、目的地址、隧道ID、隧道信令协议（为缺省的RSVP-TE）、隧道带宽、TE度量值、链路开销值

  • 复杂流分类名称和流策略名称

操作步骤

  1. 配置各接口的IP地址

    按照图3-29配置各接口的IP地址，包括各Loopback接口的IP地址，具体配置过程略。

  2. 使用OSPF协议通告各接口所连网段和LSR ID主机路由（略）
  3. 配置PE和CE间的EBGP以及PE间的MP-IBGP

    具体配置详见配置文件。

  4. 配置MPLS基本功能，PE1与P1之间，P2与PE2之间使能LDP，P1与P3、P2之间使能RSVP

    # 配置PE1。

    [~PE1] mpls lsr-id 1.1.1.1
    [*PE1] mpls
    [*PE1-mpls] lsp-trigger all
    [*PE1-mpls] quit
    [*PE1] mpls ldp
    [*PE1-mpls-ldp] quit
    [*PE1] interface gigabitethernet 0/1/0
    [*PE1-GigabitEthernet0/1/0] mpls
    [*PE1-GigabitEthernet0/1/0] mpls ldp
    [*PE1-GigabitEthernet0/1/0] commit
    [~PE1-GigabitEthernet0/1/0] quit

    # 配置P1。

    [~P1] mpls lsr-id 2.2.2.2
    [*P1] mpls
    [*P1-mpls] mpls te
    [*P1-mpls] lsp-trigger all
    [*P1-mpls] mpls rsvp-te
    [*P1-mpls] mpls te cspf
    [*P1-mpls] quit
    [*P1] mpls ldp
    [*P1-mpls-ldp] quit
    [*P1] interface gigabitethernet 0/1/0
    [*P1-GigabitEthernet0/1/0] mpls
    [*P1-GigabitEthernet0/1/0] mpls ldp
    [*P1-GigabitEthernet0/1/0] quit
    [*P1] interface gigabitethernet 0/2/0
    [*P1-GigabitEthernet0/2/0] mpls
    [*P1-GigabitEthernet0/2/0] mpls te
    [*P1-GigabitEthernet0/2/0] mpls rsvp-te
    [*P1-GigabitEthernet0/2/0] commit
    [~P1-GigabitEthernet0/2/0] quit

    # 配置P3。

    [~P3] mpls lsr-id 3.3.3.3
    [*P3] mpls
    [*P3-mpls] mpls te
    [*P3-mpls] mpls rsvp-te
    [*P3-mpls] quit
    [*P3] interface gigabitethernet 0/1/0
    [*P3-GigabitEthernet0/1/0] mpls
    [*P3-GigabitEthernet0/1/0] mpls te
    [*P3-GigabitEthernet0/1/0] mpls rsvp-te
    [*P3-GigabitEthernet0/1/0] quit
    [*P3] interface gigabitethernet 0/2/0
    [*P3-GigabitEthernet0/2/0] mpls
    [*P3-GigabitEthernet0/2/0] mpls te
    [*P3-GigabitEthernet0/2/0] mpls rsvp-te
    [*P3-GigabitEthernet0/2/0] commit
    [~P3-GigabitEthernet0/2/0] quit

    # 配置P2。

    [~P2] mpls lsr-id 4.4.4.4
    [*P2] mpls
    [*P2-mpls] mpls te
    [*P2-mpls] lsp-trigger all
    [*P2-mpls] mpls rsvp-te
    [*P2-mpls] mpls te cspf
    [*P2-mpls] quit
    [*P2] mpls ldp
    [*P2-mpls-ldp] quit
    [*P2] interface gigabitethernet 0/1/0
    [*P2-GigabitEthernet0/1/0] mpls
    [*P2-GigabitEthernet0/1/0] mpls te
    [*P2-GigabitEthernet0/1/0] mpls rsvp-te
    [*P2-GigabitEthernet0/1/0] quit
    [*P2] interface gigabitethernet 0/2/0
    [*P2-GigabitEthernet0/2/0] mpls
    [*P2-GigabitEthernet0/2/0] mpls ldp
    [*P2-GigabitEthernet0/2/0] commit
    [~P2-GigabitEthernet0/2/0] quit

    # 配置PE2。

    [~PE2] mpls lsr-id 5.5.5.5
    [*PE2] mpls
    [*PE2-mpls] lsp-trigger all
    [*PE2-mpls] quit
    [*PE2] mpls ldp
    [*PE2-mpls-ldp] quit
    [*PE2] interface gigabitethernet 0/1/0
    [*PE2-GigabitEthernet0/1/0] mpls
    [*PE2-GigabitEthernet0/1/0] mpls ldp
    [*PE2-GigabitEthernet0/1/0] commit
    [~PE2-GigabitEthernet0/1/0] quit

    完成上述配置后，PE1与P1，P2与PE2之间的本地LDP会话已经建立成功。

    # 在节点PE1、P1、P2、PE2上执行display mpls ldp session命令，可以看到LDP会话的建立情况。

    [~PE1] display mpls ldp session
     LDP Session(s) in Public Network
 Codes: LAM(Label Advertisement Mode), SsnAge Unit(DDDD:HH:MM)
 A '*' before a session means the session is being deleted.
--------------------------------------------------------------------------
 PeerID             Status      LAM  SsnRole  SsnAge       KASent/Rcv
--------------------------------------------------------------------------
 2.2.2.2:0          Operational DU   Passive  0000:00:05   23/23
--------------------------------------------------------------------------
TOTAL: 1 Session(s) Found.

    # 执行display mpls ldp peer命令，可以看到LDP对等体情况。

    [~PE1] display mpls ldp peer
     LDP Peer Information in Public network
 A '*' before a peer means the peer is being deleted.
 -------------------------------------------------------------------------
 PeerID                 TransportAddress   DiscoverySource
 -------------------------------------------------------------------------
 2.2.2.2:0              2.2.2.2            GigabitEthernet0/1/0       
 -------------------------------------------------------------------------
TOTAL: 1 Peer(s) Found.
    

    # 执行display mpls lsp可以看到LDP LSP的信息，RSVP尚未建立LSP。以节点PE1的显示为例：
    

    [~PE1] display mpls lsp
    

    ----------------------------------------------------------------------
    

                     LSP Information: LDP LSP
    

    ----------------------------------------------------------------------
    

    FEC                In/Out Label  In/Out IF                      Vrf Name
    

    1.1.1.1/32         3/NULL        GE0/1/0/-
    

    2.2.2.2/32         NULL/3        -/GE0/1/0
    

    2.2.2.2/32         1024/3        -/GE0/1/0
    

    10.1.1.0/24        3/NUL         GE0/1/0/-
    

    10.2.1.0/24        NULL/3        -/GE0/1/0
    

    10.2.1.0/24        1025/3        -/GE0/1/0
    

  5. 配置P1与P2之间的LDP远端会话
    # 配置P1。
    

    [~P1] mpls ldp remote-peer lsrd
    

    [*P1-mpls-ldp-remote-lsrd] remote-ip 4.4.4.4
    

    [*P1-mpls-ldp-remote-lsrd] commit
    

    [~P1-mpls-ldp-remote-lsrd] quit
    

    # 配置P2。
    

    [~P2] mpls ldp remote-peer lsrb
    

    [*P2-mpls-ldp-remote-lsrb] remote-ip 2.2.2.2
    

    [*P2-mpls-ldp-remote-lsrb] commit
    

    [~P2-mpls-ldp-remote-lsrb] quit
    

    # 完成上述配置后，在P1与P2间建立起远端会话，在P1或P2上执行display mpls ldp remote-peer将显示远端会话实体信息，以P1的显示为例：
    

    [~P1] display mpls ldp remote-peer lsrd
    

                             LDP Remote Entity Information
 ------------------------------------------------------------------------------
 Remote Peer Name: P2
 Remote Peer IP    : 4.4.4.4              LDP ID        : 2.2.2.2:0
 Transport Address : 2.2.2.2              Entity Status : Active

 Configured Keepalive Hold Timer : 45 Sec
 Configured Keepalive Send Timer : ----
 Configured Hello Hold Timer     : 45 Sec
 Negotiated Hello Hold Timer     : 45 Sec
 Configured Hello Send Timer     : ----
 Configured Delay Timer          : ----
 Hello Packet sent/received      : 425/382
 ------------------------------------------------------------------------------
 TOTAL: 1 Remote-Peer(s) Found.

    

  6. 在TE隧道沿途链路的出接口上配置带宽属性
    # 配置P1。
    

    [~P1] interface gigabitethernet 0/2/0
    

    [~P1-GigabitEthernet0/2/0] mpls te bandwidth max-reservable-bandwidth 20000
    

    [*P1-GigabitEthernet0/2/0] mpls te bandwidth bc0 20000
    

    [*P1-GigabitEthernet0/2/0] commit
    

    [~P1-GigabitEthernet0/2/0] quit
    

    # 配置P3。
    

    [~P3] interface gigabitethernet 0/1/0
    

    [~P3-GigabitEthernet0/1/0] mpls te bandwidth max-reservable-bandwidth 20000
    

    [*P3-GigabitEthernet0/1/0] mpls te bandwidth bc0 20000
    

    [*P3-GigabitEthernet0/1/0] quit
    

    [*P3] interface gigabitethernet 0/2/0
    

    [*P3-GigabitEthernet0/2/0] mpls te bandwidth max-reservable-bandwidth 20000
    

    [*P3-GigabitEthernet0/2/0] mpls te bandwidth bc0 20000
    

    [*P3-GigabitEthernet0/2/0] commit
    

    [~P3-GigabitEthernet0/2/0] quit
    

    # 配置P2。
    

    [~P2] interface gigabitethernet 0/1/0
    

    [~P2-GigabitEthernet0/1/0] mpls te bandwidth max-reservable-bandwidth 20000
    

    [*P2-GigabitEthernet0/1/0] mpls te bandwidth bc0 20000
    

    [*P2-GigabitEthernet0/1/0] commit
    

    [~P2-GigabitEthernet0/1/0] quit
    

  7. 在PE1和PE2上配置L3VPN接入，并在PE1入接口上配置复杂流分类
    # PE1上的配置
    

    [~PE1] ip vpn-instance VPNA
    

    [*PE1-vpn-instance-VPNA] ipv4-family
    

    [*PE1-vpn-instance-VPNA-af-ipv4] route-distinguisher 100:1
    

    [*PE1-vpn-instance-VPNA-af-ipv4] vpn-target 111:1 both
    

    [*PE1] interface gigabitethernet 0/2/0
    

    [*PE1-GigabitEthernet0/2/0] ip binding vpn-instance VPNA
    

    [*PE1] acl 2001
    

    [*PE1-acl4-basic-2001] rule 10 permit source 40.0.0.0 0.255.255.255
    

    [*PE1-acl4-basic-2001] quit
    

    [*PE1] acl 2002
    

    [*PE1-acl4-basic-2002] rule 20 permit source 50.0.0.0 0.255.255.255
    

    [*PE1-acl4-basic-2002] quit
    

    [*PE1] traffic classifier service1
    

    [*PE1-classifier-service1] if-match acl 2001
    

    [*PE1-classifier-service1] commit
    

    [~PE1-classifier-service1] quit
    

    [~PE1] traffic behavior behavior1
    

    [*PE1-behavior-behavior1] service-class af1 color green
    

    [*PE1-behavior-behavior1] commit
    

    [~PE1-behavior-behavior1] quit
    

    [~PE1] traffic classifier service2
    

    [*PE1-classifier-service2] if-match acl 2002
    

    [*PE1-classifier-service2] commit
    

    [~PE1-classifier-service2] quit
    

    [~PE1] traffic behavior behavior2
    

    [*PE1-behavior-behavior2] service-class af2 color green
    

    [*PE1-behavior-behavior2] commit
    

    [~PE1-behavior-behavior2] quit
    

    [~PE1] traffic policy test
    

    [*PE1-trafficpolicy-test] classifier service1 behavior behavior1
    

    [*PE1-trafficpolicy-test] classifier service2 behavior behavior2
    

    [*PE1-trafficpolicy-test] commit
    

    [~PE1-trafficpolicy-test] quit
    

    [~PE1] interface gigabitethernet 0/2/0
    

    [~PE1-GigabitEthernet0/2/0] traffic-policy test inbound
    

    [~PE1-GigabitEthernet0/2/0] commit
    

    [~PE1-GigabitEthernet0/2/0] quit
    

    # PE2上的配置
    

    [~PE2] ip vpn-instance VPNB
    

    [*PE2-vpn-instance-VPNB] ipv4-family
    

    [*PE2-vpn-instance-VPNB-af-ipv4] route-distinguisher 200:1
    

    [*PE2-vpn-instance-VPNB-af-ipv4] vpn-target 111:1 both
    

    [*PE2] interface gigabitethernet 0/2/0
    

    [*PE2-GigabitEthernet0/2/0] ip binding vpn-instance VPNB
    

    [*PE2-GigabitEthernet0/2/0] commit
    

    [~PE2-GigabitEthernet0/2/0] quit
    

  8. 在PE1和P1的互连接口上分别配置简单流分类
    # PE1的配置
    

    [~PE1] interface gigabitethernet 0/1/0
    

    [~PE1-GigabitEthernet0/1/0] trust upstream default
    

    [*PE1-GigabitEthernet0/1/0] commit
    

    [~PE1-GigabitEthernet0/1/0] quit
    

    # P1的配置
    

    [~P1] interface gigabitethernet 0/1/0
    

    [~P1-GigabitEthernet0/1/0] trust upstream default
    

    [*PE1-GigabitEthernet0/1/0] commit
    

    [~PE1-GigabitEthernet0/1/0] quit
    

  9. 配置P1到P2的TE Tunnel，并为各Tunnel配置可以通过的报文的服务等级。
     
    执行mpls te service-class { service-class & <1-8> | default }命令实现指定各Tunnel可以通过的报文的服务等级。
    

    

    # 配置节点P1。在Tunnel接口上使能IGP Shortcut，并调整转发邻接的metric值，使到P2或PE2的流量经过Tunnel。
    

    [~P1] interface tunnel1
    

    [*P1-Tunnel1] ip address unnumbered interface LoopBack1
    

    [*P1-Tunnel1] tunnel-protocol mpls te
    

    [*P1-Tunnel1] destination 4.4.4.4
    

    [*P1-Tunnel1] mpls te tunnel-id 100
    

    [*P1-Tunnel1] mpls te bandwidth ct0 10000
    

    [*P1-Tunnel1] mpls te igp shortcut
    

    [*P1-Tunnel1] mpls te igp metric absolute 1
    

    [*P1-Tunnel1] mpls te service-class af1 af2
    

    [*P1-Tunnel1] quit
    

    [*P1] interface tunnel12
    

    [*P1-Tunnel2] ip address unnumbered interface LoopBack1
    

    [*P1-Tunnel2] tunnel-protocol mpls te
    

    [*P1-Tunnel2] destination 4.4.4.4
    

    [*P1-Tunnel2] mpls te tunnel-id 200
    

    [*P1-Tunnel2] mpls te bandwidth ct0 10000
    

    [*P1-Tunnel2] mpls te igp shortcut
    

    [*P1-Tunnel2] mpls te igp metric absolute 1
    

    [*P1-Tunnel2] mpls te service-class default
    

    [*P1-Tunnel2] quit
    

    [*P1] ospf 1
    

    [*P1-ospf-1] area 0
    

    [*P1-ospf-1-area-0.0.0.0] network 2.2.2.2 0.0.0.0
    

    [*P1-ospf-1-area-0.0.0.0] quit
    

    [*P1-ospf-1] enable traffic-adjustment advertise
    

    [*P1-ospf-1] commit
    

  10. 配置P2到P1的Tunnel
    # 配置节点P2。在Tunnel接口上使能转发邻接，并调整转发邻接的metric值，使到PE1或P1的流量经过Tunnel。
    

    [~P2] interface tunnel1
    

    [*P2-Tunnel1] ip address unnumbered interface LoopBack1
    

    [*P2-Tunnel1] tunnel-protocol mpls te
    

    [*P2-Tunnel1] destination 2.2.2.2
    

    [*P2-Tunnel1] mpls te tunnel-id 101
    

    [*P2-Tunnel1] mpls te bandwidth ct0 10000
    

    [*P2-Tunnel1] mpls te igp shortcut
    

    [*P2-Tunnel1] mpls te igp metric absolute 1
    

    [*P2-Tunnel1] quit
    

    [*P2] ospf 1
    

    [*P2-ospf-1] area 0
    

    [*P2-ospf-1-area-0.0.0.0] network 4.4.4.4 0.0.0.0
    

    [*P2-ospf-1-area-0.0.0.0] quit
    

    [*P2-ospf-1] enable traffic-adjustment advertise
    

    [*P2-Tunnel1] commit
    



配置文件
  • PE1的配置文件
    

    #
    

    sysname PE1
    

    #
    

    ip vpn-instance VPNA
    

     ipv4-family 
    

      route-distinguisher 100:1
    

      apply-label per-instance
    

      vpn-target 111:1 export-extcommunity
    

      vpn-target 111:1 import-extcommunity
    

    #
    

    mpls lsr-id 1.1.1.1
    

    #
    

    mpls
    

      lsp-trigger all
    

    #
    

    mpls ldp
    

    #
    

    acl number 2001
    

     rule 10 permit source 40.0.0.0 0.255.255.255
    

    #
    

    acl number 2002
    

     rule 20 permit source 50.0.0.0 0.255.255.255
    

    #
    

    traffic classifier service1 
    

     if-match acl 2001
    

    #
    

    traffic classifier service2 
    

     if-match acl 2002
    

    #
    

    traffic behavior behavior1
    

     service-class af1 color green
    

    #
    

    traffic behavior behavior2
    

     service-class af2 color green
    

    #
    

    traffic policy test
    

     share-mode
    

     classifier service1 behavior behavior1 
    

     classifier service2 behavior behavior2
    

    #
    

    interface GigabitEthernet0/1/0
    

     undo shutdown 
    

     ip address 10.1.1.1 255.255.255.0
    

     mpls
    

     mpls ldp
    

     trust upstream default
    

    #
    

    interface GigabitEthernet0/2/0
    

     undo shutdown 
    

     ip binding vpn-instance VPNA
    

     ip address 10.10.1.1 255.255.255.0
    

     traffic-policy test inbound
    

    #
    

    interface LoopBack1
    

     ip address 1.1.1.1 255.255.255.255
    

    #
    

    bgp 100
    

     peer 5.5.5.5 as-number 100
    

     peer 5.5.5.5 connect-interface LoopBack1
    

     #
    

     ipv4-family unicast
    

     undo synchronization 
    

     peer 5.5.5.5 enable
    

     #
    

     ipv4-family vpnv4 
    

     policy vpn-target 
    

     peer 5.5.5.5 enable
    

     #
    

     ipv4-family vpn-instance VPNA
    

      peer 10.10.1.2 as-number 65410
    

    #
    

    ospf 1
    

     area 0.0.0.0
    

      network 1.1.1.1 0.0.0.0
    

      network 10.1.1.0 0.0.0.255
    

    #
    

    return
    

  • P1的配置文件
    

    #
    

    sysname P1
    

    #
    

    mpls lsr-id 2.2.2.2
    

    #
    

    mpls
    

      mpls te
    

      mpls rsvp-te
    

      mpls te cspf
    

      lsp-trigger all
    

    #
    

    mpls ldp
    

     #
 ipv4-family
    

    #
    

    mpls ldp remote-peer lsrd
    

     remote-ip 4.4.4.4
    

    #
    

    interface GigabitEthernet0/1/0
    

     undo shutdown 
    

     ip address 10.1.1.2 255.255.255.0
    

     mpls
    

     mpls ldp
    

     trust upstream default
    

    #
    

    interface GigabitEthernet0/2/0
    

     undo shutdown 
    

     ip address 10.2.1.1 255.255.255.0
    

     mpls
    

     mpls te
    

     mpls te bandwidth max-reservable-bandwidth 20000
    

     mpls te bandwidth bc0 20000
    

     mpls rsvp-te
    

    #
    

    interface LoopBack1
    

     ip address 2.2.2.2 255.255.255.255
    

    #
    

    interface Tunnel1
    

     ip address unnumbered interface LoopBack1
    

     tunnel-protocol mpls te
    

     destination 4.4.4.4
    

     mpls te tunnel-id 100
    

     mpls te bandwidth ct0 10000
    

     mpls te igp shortcut
    

     mpls te igp metric absolute 1
    

     mpls te service-class af1 af2
    

    #
    

    interface Tunnel2
    

     ip address unnumbered interface LoopBack1
    

     tunnel-protocol mpls te
    

     destination 4.4.4.4
    

     mpls te tunnel-id 200
    

     mpls te bandwidth ct0 10000
    

     mpls te igp shortcut
    

     mpls te igp metric absolute 1
    

     mpls te service-class default
    

    #
    

    ospf 1
    

     opaque-capability enable
    

     enable traffic-adjustment advertise
    

     area 0.0.0.0
    

      network 2.2.2.2 0.0.0.0
    

      network 10.1.1.0 0.0.0.255
    

      network 10.2.1.0 0.0.0.255
    

      mpls-te enable
    

    #
    

    return
    

  • P3的配置文件
    

    #
    

    sysname P3
    

    #
    

    mpls lsr-id 3.3.3.3
    

    #
    

    mpls
    

      mpls te
    

      mpls rsvp-te
    

    #
    

    interface GigabitEthernet0/1/0
    

     undo shutdown 
    

     ip address 10.2.1.2 255.255.255.0
    

     mpls
    

     mpls te
    

     mpls te bandwidth max-reservable-bandwidth 20000
    

     mpls te bandwidth bc0 20000
    

     mpls rsvp-te
    

    #
    

    interface GigabitEthernet0/2/0
    

     undo shutdown 
    

     ip address 10.3.1.1 255.255.255.0
    

     mpls
    

     mpls te
    

     mpls te bandwidth max-reservable-bandwidth 20000
    

     mpls te bandwidth bc0 20000
    

     mpls rsvp-te
    

    #
    

    interface LoopBack1
    

     ip address 3.3.3.3 255.255.255.255
    

    #
    

    ospf 1
    

     opaque-capability enable
    

     area 0.0.0.0
    

      network 3.3.3.3 0.0.0.0
    

      network 10.2.1.0 0.0.0.255
    

      network 10.3.1.0 0.0.0.255
    

      mpls-te enable
    

    #
    

    return
    

  • P2的配置文件
    

    #
    

    sysname P2
    

    #
    

    mpls lsr-id 4.4.4.4
    

    #
    

    mpls
    

      mpls te
    

      mpls rsvp-te
    

      mpls te cspf
    

      lsp-trigger all
    

    #
    

    mpls ldp
    

     #
 ipv4-family
    

    #
    

    mpls ldp remote-peer lsrb
    

     remote-ip 2.2.2.2
    

    #
    

    interface GigabitEthernet0/1/0
    

     undo shutdown 
    

     ip address 10.3.1.2 255.255.255.0
    

     mpls
    

     mpls te
    

     mpls te bandwidth max-reservable-bandwidth 20000
    

     mpls te bandwidth bc0 20000
    

     mpls rsvp-te
    

    #
    

    interface GigabitEthernet0/2/0
    

     undo shutdown 
    

     ip address 10.4.1.2 255.255.255.0
    

     mpls
    

     mpls ldp
    

    #
    

    interface LoopBack1
    

     ip address 4.4.4.4 255.255.255.255
    

    #
    

    interface Tunnel1
    

     ip address unnumbered interface LoopBack1
    

     tunnel-protocol mpls te
    

     destination 2.2.2.2
    

     mpls te tunnel-id 101
    

     mpls te bandwidth ct0 10000
    

     mpls te igp shortcut
    

     mpls te igp metric absolute 1
    

    #
    

    ospf 1
    

     opaque-capability enable
    

     enable traffic-adjustment advertise
    

     area 0.0.0.0
    

      network 4.4.4.4 0.0.0.0
    

      network 10.3.1.0 0.0.0.255
    

      network 10.4.1.0 0.0.0.255
    

      mpls-te enable
    

    #
    

    return
    

  • PE2的配置文件
    

    #
    

    sysname PE2
    

    #
    

    ip vpn-instance VPNB
    

     ipv4-family 
    

      route-distinguisher 200:1
    

      apply-label per-instance
    

      vpn-target 111:1 export-extcommunity
    

      vpn-target 111:1 import-extcommunity
    

    #
    

    mpls lsr-id 5.5.5.5
    

    #
    

    mpls
    

      lsp-trigger all
    

    #
    

    mpls ldp
    

    #
    

    interface GigabitEthernet0/1/0
    

     undo shutdown 
    

     ip address 10.4.1.1 255.255.255.0
    

     mpls
    

     mpls ldp
    

    #
    

    interface GigabitEthernet0/2/0
    

     undo shutdown 
    

     ip binding vpn-instance VPNB
    

     ip address 10.11.1.1 255.255.255.0
    

    #
    

    interface LoopBack1
    

     ip address 5.5.5.5 255.255.255.255
    

    #
    

    bgp 100
    

     peer 1.1.1.1 as-number 100
    

     peer 1.1.1.1 connect-interface LoopBack1
    

     #
    

     ipv4-family unicast 
    

     undo synchronization
    

     peer 1.1.1.1 enable
    

     #
    

     ipv4-family vpnv4
    

     policy vpn-target
    

     peer 1.1.1.1 enable
    

     #
    

     ipv4-family vpn-instance VPNB
    

      peer 10.11.1.2 as-number 65420
    

    #
    

    ospf 1
    

     area 0.0.0.0
    

      network 5.5.5.5 0.0.0.0
    

      network 10.4.1.0 0.0.0.255
    

    #
    

    return
    










            

            
            

        

        
        

            

                
                

                
                    

                        
                            
                                

                                    
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                    更新时间：2020-02-11
                    
                

                
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