【MPLS TE】MPLS TE基础实验(OSPF).docx

【MPLSTE】MPLSTE基础实验（OSPF）(2013-08-16 16:39:45)1.实验环境 设备互联网段为10.1.xy.0/24，其中xy为设备编号，x小y大 所有设备的loopback0地址空间为x.x.x.x/32，x为设备编号 全网运行OSPF，宣告直连和loopback接口 在R1上建立一个TE Tunnel，源为自身的loopback0，目的为R4的2.实验步骤1. 完成基本的IP配置（配置省略）2. 所有路由器运行OSPF3. 全局激活MPLS TE tunnel，并设定MPLS 标签空间4. 为每台路由器的OSPF激活MPLS TE的扩展，并且手工设置用于MPLS TE 的RouterID5. 每台路由器的接口都激活RSVP及MPLS TE tunnel的支持6. 在R1上完成MPLS TE的配置7. 测试数据流的传输过程，观察现象（原创博文，红茶三杯 /vinsoney 版权所有，转载保留原作者信息及出处）3.配置命令R2的配置如下：Ip cefmpls traffic-eng tunnelsmpls label range 200 299!router ospf 1router-id network area 0network area 0network area 0mpls traffic-eng router-id loopback0mpls traffic-eng area 0!interface fast 0/0mpls traffic-eng tunnelsip rsvp bandwidthinterface fast 1/0mpls traffic-eng tunnelsip rsvp bandwidthR3的配置如下：Ip cefmpls traffic-eng tunnelsmpls label range 300 399!router ospf 1router-id network area 0network area 0network area 0mpls traffic-eng router-id loopback0mpls traffic-eng area 0!interface fast 0/0mpls traffic-eng tunnelsip rsvp bandwidthinterface fast 1/0mpls traffic-eng tunnelsip rsvp bandwidthR4的配置如下：Ip cefmpls traffic-eng tunnelsmpls label range 400 499!router ospf 1router-id network area 0network area 0mpls traffic-eng router-id loopback0mpls traffic-eng area 0!interface fast 0/0mpls traffic-eng tunnelsip rsvp bandwidthR1的配置如下：Ip cefmpls traffic-eng tunnelsmpls label range 100 199!router ospf 1router-id network area 0network area 0mpls traffic-eng router-id loopback0mpls traffic-eng area 0!interface fast 0/0mpls traffic-eng tunnelsip rsvp bandwidth!Interface tunnel0 ! TE tunnelip unnumbered loopback 0tunnel destination tunnel mode mpls traffic-engtunnel mpls traffic-eng priority 7 7 !tunnel的建立和保持优先级tunnel mpls traffic-eng bandwidth 20000 !带宽要求为20Mtunnel mpls traffic-eng path-option 10 dynamic !使用动态计算的方式建立tunnel PATH4.验证及查看首先我们在R1上观察一下：R1#show ip ospf databaseType-10 Opaque Link Area Link States (Area 0)Link ID ADV Router Age Seq# Checksum Opaque ID 366 0x80000005 0x0067EF 0 697 0x80000001 0x0090AA 0 1230 0x8000001A 0x002ED2 0 947 0x80000018 0x008F6C 0 1230 0x80000018 0x001C01 1 1230 0x80000011 0x00F741 2 上面输出的就是在本环境中，area0内泛洪的type10的opaque-area LSA。可以进一步详细的看一下，例如看R1自己产生LSA10：R1#show ip ospf database opaque-area self-originateOSPF Router with ID () (Process ID 1)Type-10 Opaque Link Area Link States (Area 0)LS age: 29Options: (No TOS-capability, DC)LS Type: Opaque Area LinkLink State ID: Opaque Type: 1Opaque ID: 0Advertising Router: LS Seq Number: 80000001Checksum: 0x6FEBLength: 132Fragment number : 0MPLS TE router ID : Link connected to Broadcast networkLink ID : Interface Address : Admin Metric : 1 ! TE metric，默认和下面的IGP metric相等Maximum bandwidth : 12500000 !单位是Bytes，乘以8也就是100MbpsMaximum reservable bandwidth : 9375000 !最大可预留带宽 是75MNumber of Priority : 8Priority 0 : 9375000 Priority 1 : 9375000 Priority 2 : 9375000 Priority 3 : 9375000 Priority 4 : 9375000 Priority 5 : 9375000 Priority 6 : 9375000 Priority 7 : 9375000 Affinity Bit : 0x0IGP Metric : 1 !接口的OSPF costNumber of Links : 1接下去在R1上看一下Tunnel：R1#show mpls traffic-eng tunnelsName: R1_t0 (Tunnel0) Destination: Status:Admin: up Oper: up Path: valid Signalling: connectedpath option 10, type dynamic (Basis for Setup, path weight 3)Config Parameters:Bandwidth: 20000 kbps (Global) Priority: 7 7 Affinity: 0x0/0xFFFFMetric Type: TE (default) !带宽要求为20M，隧道抢占优先级及保持优先级为7AutoRoute: disabled LockDown: disabled Loadshare: 20000 bw-basedauto-bw: disabledInLabel : -OutLabel : FastEthernet0/0, 201 ! 出站标签201，现在是R2给的RSVP Signalling Info:Src , Dst , Tun_Id 0, Tun_Instance 2RSVP Path Info:My Address: Explicit Route: !LSP的路径Record Route: NONETspec: ave rate=20000 kbits, burst=1000 bytes, peak rate=20000 kbitsRSVP Resv Info:Record Route: NONEFspec: ave rate=20000 kbits, burst=1000 bytes, peak rate=20000 kbitsHistory:Tunnel:Time since created: 10 minutes, 5 secondsTime since path change: 9 minutes, 49 secondsCurrent LSP:Uptime: 9 minutes, 33 secondsSelection: reoptimationPrior LSP:ID: path option 10 1Removal Trigger: configuration changed（原创博文，红茶三杯 /vinsoney 版权所有，转载保留原作者信息及出处）接下去在R2上看一下Tunnel：R2#show mpls traffic-eng tunnelsLSP Tunnel R1_t0 is signalled, connection is upInLabel : FastEthernet0/0, 201 !入站标签是201OutLabel : FastEthernet1/0, 301 !出站标签是301RSVP Signalling Info:Src , Dst , Tun_Id 0, Tun_Instance 2RSVP Path Info:My Address: Explicit Route: Record Route: NONETspec: ave rate=20000 kbits, burst=1000 bytes, peak rate=20000 kbitsRSVP Resv Info:Record Route: NONEFspec: ave rate=20000 kbits, burst=1000 bytes, peak rate=20000 kbits现在我们在R1上将其去往的流量引到tunnel，用一个最简单的方法：静态路由。R1(config)#ip route 55 tunnel 0R1#show ip routeS is directly connected, Tunnel0接下去就可以在R1上去测试流量的转发了。R1#tracer