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mpls-02

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mpls-02

  1. 1. 1. MPLS – LDP - Xconnects Loops: R1 192.168.0.1 R2 192.168.0.2 … etc We should be familiar with:- . IGP & Routing Generally . MPLS LDP Distribution . MPLS Labels and how to follow . Understanding of Labels LSR . Behavior LSR-to-LSR R5 R1 R2 R3 R4 R6 Fa0/1 1.6/30 Fa0/0 1.1/30 Fa0/0 1.2/30 Fa0/1 1.5/30 Fa0/1 1.9/30 Fa0/1 1.10/30 Fa0/1 1.14/30 Fa0/1 1.13/30 Fa1/0 1.17/30 F0/0 1.18/30 F0/1 1.21/30 F0/1 1.22/30
  2. 2. 2. MPLS – LDP - Xconnects Adding CE Portion to the Network Interconnects: CE-R7 <==> R1 Fa0/1 Fa1/0 CE-R8 <==> R6 Fa0/0 Fa0/0 We/ISP will try and provide CE with a point-to-point connection (l2circuit) and we use MPLS for this. After this is done, CE can configure their own IP between CE.R7 – CE.R8 R5 R1 R2 R3 R4 R6 Fa0/1 1.6/30 Fa0/0 1.1/30 Fa0/0 1.2/30 Fa0/1 1.5/30 Fa0/1 1.9/30 Fa0/1 1.10/30 Fa0/1 1.14/30 Fa0/1 1.13/30 Fa1/0 1.17/30 F0/0 1.18/30 F0/1 1.21/30 F0/1 1.22/30 R8 R6 R7 P-to-P
  3. 3. 3. MPLS – LDP - Xconnects Configs on R1 R1#show run interface fa 1/0 ! interface FastEthernet1/0 description r1-ce7 no ip address xconnect 192.168.0.6 99 encapsulation mpls End NOTE: Nothing special on CE.R7 & CE.R8 – xconnects are totally transparent to customers Configs on R6 R6#show run interface fa0/0 ! interface FastEthernet0/0 description r6-ce8 no ip address xconnect 192.168.0.1 99 encapsulation mpls end VCID 99 R5 R1 R2 R3 R4 R6 Fa0/0 1.1/30 Fa0/0 1.2/30 Fa0/1 1.9/30 Fa0/1 1.10/30 Fa0/1 1.14/30 Fa0/1 1.13/30 Fa1/0 1.17/30 F0/0 1.18/30 F0/1 1.21/30 F0/1 1.22/30 R8 R6 R7 P-to-P
  4. 4. 4. MPLS – LDP - Xconnects Testing Xconnect on PE R1<==>R6 R1#show xconnect all XC ST Segment 1 S1 Segment 2 S2 ------+---------------------------------+--+---------------------------------+-- UP ac Fa1/0(Ethernet) UP mpls 192.168.0.6:99 UP R1#show xconnect interface Fa1/0 detail XC ST Segment 1 S1 Segment 2 S2 ------+---------------------------------+--+---------------------------------+-- UP ac Fa1/0(Ethernet) UP mpls 192.168.0.6:99 UP Interworking: none Local VC label 16 Remote VC label 27 R6#show xconnect all XC ST Segment 1 S1 Segment 2 S2 ------+---------------------------------+--+---------------------------------+-- UP ac Fa0/0(Ethernet) UP mpls 192.168.0.1:99 UP R6#show xconnect interface Fa0/0 detail XC ST Segment 1 S1 Segment 2 S2 ------+---------------------------------+--+---------------------------------+-- UP ac Fa0/0(Ethernet) UP mpls 192.168.0.1:99 UP Interworking: none Local VC label 27 Remote VC label 16 VCID99 VCID99 R5 R1 R2 R3 R4 R6 Fa0/1 1.6/30 Fa0/0 1.1/30 Fa0/0 1.2/30 Fa0/1 1.5/30 Fa0/1 1.9/30 Fa0/1 1.10/30 Fa0/1 1.14/30 Fa0/1 1.13/30 Fa1/0 1.17/30 F0/0 1.18/30 F0/1 1.21/30 F0/1 1.22/30 R8 R6 R7 Local Label 16 Local Label 27 P-to-P
  5. 5. 5. MPLS – LDP - Xconnects Xconnect – Labels Local/Remote & VCID R1#show mpls forwarding-table Local Outgoing Prefix Bytes tag Outgoing Next Hop tag tag or VC or Tunnel Id switched interface 16 l2ckt(99) 73919 none point2point 23 22 192.168.0.6/32 0 Fa0/1 192.168.1.13 19 192.168.0.6/32 0 Fa0/0 192.168.1.2 Labels on MY LOCAL LOOP R1 Local Loop (192.168.0.1) Label 23 R6 Local Loop (192.168.0.6) Label 22 Label on DEST LOOP R1 & R6 R1 → R6 fa0/1 use Label 22 R6 → R1 fa0/1 use Label 20 R6#show mpls forwarding-table Local Outgoing Prefix Bytes tag Outgoing Next Hop tag tag or VC or Tunnel Id switched interface 22 20 192.168.0.1/32 0 Fa0/1 192.168.1.21 27 l2ckt(99) 78453 none point2point Local Label 16 Local Label 27 VCID99 R5 R1 R2 R3 R4 R6 Fa0/1 1.6/30 Fa0/0 1.1/30 Fa0/0 1.2/30 Fa0/1 1.5/30 Fa0/1 1.9/30 Fa0/1 1.10/30 Fa0/1 1.14/30 Fa0/1 1.13/30 Fa1/0 1.17/30 F0/0 1.18/30 F0/1 1.21/30 F0/1 1.22/30 R8 R6 R7 L22 L20 P-to-P
  6. 6. 6. MPLS – LDP - Xconnects Xconnect – Labels Local/Remote & VCID R6 → R1 : Fill in the Blanks R6#show mpls l2transport vc 99 detail Local interface: Fa0/0 up, line protocol up, Ethernet up Destination address: 192.168.0.1, VC ID: 99, VC status: up Next hop: 192.168.1.21 Output interface: Fa0/1, imposed label stack {20 16} Create time: 03:33:09, last status change time: 03:33:06 Signaling protocol: LDP, peer 192.168.0.1:0 up MPLS VC labels: local 27, remote 16 Group ID: local 0, remote 0 MTU: local 1500, remote 1500 Remote interface description: r1-ce7 R6#show xconnect interface fa0/0 detail XC ST Segment 1 S1 Segment 2 S2 ------+-----------------------------+--+----------------------------+-- UP ac Fa0/0(Ethernet) UP mpls 192.168.0.1:99 UP Interworking: none Local VC label 27 Remote VC label 16 Local Label 16 Local Label 27 VCID99 R5 R1 R2 R3 R4 R6 Fa0/0 1.1/30 Fa0/0 1.2/30 Fa0/1 1.9/30 Fa0/1 1.10/30 Fa0/1 1.14/30 Fa0/1 1.13/30 F0/1 1.21/30 F0/1 1.22/30 R8 R6 R7 L P-to-P
  7. 7. 7. MPLS – LDP - Xconnects Xconnect – Labels Local/Remote & VCID R1#show mpls l2transport vc 99 detail Local interface: Fa1/0 up, line protocol up, Ethernet up Destination address: 192.168.0.6, VC ID: 99, VC status: up Next hop: 192.168.1.13 Output interface: Fa0/1, imposed label stack {22 27} Create time: 03:04:31, last status change time: 02:59:26 Signaling protocol: LDP, peer 192.168.0.6:0 up MPLS VC labels: local 16, remote 27 Group ID: local 0, remote 0 MTU: local 1500, remote 1500 Remote interface description: r6-ce8 R1#show xconnect inter fa1/0 detail XC ST Segment 1 S1 Segment 2 S2 ------+------------------------------+--+---------------------------------+-- UP ac Fa1/0(Ethernet) UP mpls 192.168.0.6:99 UP Interworking: none Local VC label 16 Remote VC label 27 Local Label 16 Local Label 27 VCID99 R5 R1 R2 R3 R4 R6 Fa0/0 1.1/30 Fa0/0 1.2/30 Fa0/1 1.9/30 Fa0/1 1.10/30 Fa0/1 1.14/30 Fa0/1 1.13/30 F0/1 1.21/30 F0/1 1.22/30 R8 R6 R7 Label 20? L22 P-to-P
  8. 8. 9. MPLS – LDP - Xconnects Thank You – kjteoh 11/12/2015 Larger Diagram for reference Be proficient with MPLS-Xconnects (junos l2ckt) – Next is: L3VPN-RD-RT - MP-BGP required Local Label 16 Local Label 27 VCID99P To P R5 R1 R2 R3 R4 R6 Fa0/0 1.1/30 Fa0/0 1.2/30 Fa0/1 1.9/30 Fa0/1 1.10/30 Fa0/1 1.14/30 Fa0/1 1.13/30 F0/1 1.21/30 F0/1 1.22/30 R8 R6 R7 Label 20? L22

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