Juniper mpls best practice part 1

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MPLS Best Practices

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Juniper mpls best practice part 1

  1. 1. Juniper MPLS Best Practice Part 1 Static LSP Configuration and understanding mpls.0 table Febrian Setiadi - 860063
  2. 2. What is MPLS? <ul><li>Forwarding technique using label value </li></ul><ul><li>“ Virtual Circuit” for IP </li></ul><ul><ul><li>Unidirectional path </li></ul></ul><ul><ul><li>Tunel through the network </li></ul></ul><ul><li>Mapping IP Prefixes to LSPs </li></ul><ul><li>Labels are placed between L2 header and L2 data </li></ul><ul><li>Label stacking is possible </li></ul>
  3. 3. Lab Topology Loopbacks Jakarta : 192.168.8.1 Bandung : 192.168.12.1 Semarang : 192.168.16.1 Surabaya : 192.168.36.1 Denpasar : 192.168.40.1 Makasar : 192.168.44.1
  4. 4. IGP Configuration <ul><li>After IGP already converged, we’re ready to configure static LSP </li></ul>jkt@Lab:Jakarta> show configuration protocols ospf area 0.0.0.0 { interface all; } smg@Lab:Semarang> show configuration protocols ospf area 0.0.0.0 { interface all; } sby@Lab:Surabaya> show configuration protocols ospf area 0.0.0.0 { interface all; } bdg@Lab:Bandung> show configuration protocols ospf area 0.0.0.0 { interface all; } dps@Lab:Denpasar> show configuration protocols ospf area 0.0.0.0 { interface all; } mks@Lab:Makasar> show configuration protocols ospf area 0.0.0.0 { interface all; } Preconfigured with OSPF, all routers belong to area 0
  5. 5. LSP Configuration <ul><li>We’ll setup LSP from Jakarta to Makasar, via Semarang, Surabaya and Makasar </li></ul><ul><li>And returning LSP path from Makasar to Jakarta via Denpasar and Bandung </li></ul>
  6. 6. LSP Configuration Jakarta performs label imposition (PUSH) , this label should be received by Semarang jkt@Lab:Jakarta> show configuration protocols mpls static-path inet { 192.168.44.1/32 { next-hop 10.0.11.1; push 1000001; } } interface all;
  7. 7. LSP Configuration Semarang performs label swapping 1000001 with 1000002 smg@Lab:Semarang> show configuration protocols mpls interface all; interface em1.11 { label-map 1000001 { next-hop 10.0.0.2; swap 1000002; } } smg@Lab:Semarang> show route table mpls.0 mpls.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both 0 *[MPLS/0] 01:51:53, metric 1 Receive 1 *[MPLS/0] 01:51:53, metric 1 Receive 2 *[MPLS/0] 01:51:53, metric 1 Receive 1000001 *[Static/5] 01:51:53 > to 10.0.0.2 via em1.0, Swap 1000002 What’s on mpls.0 table
  8. 8. LSP Configuration Surabaya performs label swapping 100002 with 100003 sby@Lab:Surabaya> show configuration protocols mpls interface all; interface em2.0 { label-map 1000002 { next-hop 10.0.4.2; swap 1000003; } } sby@Lab:Surabaya> show route table mpls.0 mpls.0: 4 destinations, 4 routes (4 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both 0 *[MPLS/0] 02:07:58, metric 1 Receive 1 *[MPLS/0] 02:07:58, metric 1 Receive 2 *[MPLS/0] 02:07:58, metric 1 Receive 1000002 *[Static/5] 01:56:46 > to 10.0.4.2 via em1.4, Swap 1000003 What’s on mpls.0 table
  9. 9. LSP Configuration Denpasar performs label swapping 1000003 with 0  Penultimate Hop Popping dps@Lab:Denpasar> show configuration protocols mpls interface all; interface em1.60 { label-map 1000003 { next-hop 10.0.60.2; swap 0; } } dps@Lab:Denpasar> show route table mp mpls.0: 6 destinations, 6 routes (6 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both 0 *[MPLS/0] 02:19:06, metric 1 Receive 1 *[MPLS/0] 02:19:06, metric 1 Receive 2 *[MPLS/0] 02:19:06, metric 1 Receive 1000003 *[Static/5] 02:04:06 > to 10.0.60.2 via em1.60, Swap 0 1000003(S=0) *[Static/5] 02:04:06 > to 10.0.60.2 via em1.60, Pop What’s on mpls.0 table
  10. 10. LSP Configuration <ul><li>Reachability from Jakarta </li></ul><ul><li>Traceroute result from Jakarta </li></ul>jkt@Lab:Jakarta> show route 192.168.44.1 inet.0: 17 destinations, 18 routes (17 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both 192.168.44.1/32 *[Static/5] 02:02:10 > to 10.0.11.1 via em2.11, Push 1000001 [OSPF/10] 02:55:26, metric 3 > to 10.0.80.2 via em1.80 to 10.0.11.1 via em2.11 jkt@Lab:Jakarta> traceroute 192.168.44.1 traceroute to 192.168.44.1 (192.168.44.1), 30 hops max, 40 byte packets 1 SMG (10.0.11.1) 0.817 ms 0.750 ms 0.590 ms MPLS Label=1000001 CoS=0 TTL=1 S=1 2 SBY (10.0.0.2) 1.096 ms 1.061 ms 1.308 ms MPLS Label=1000002 CoS=0 TTL=1 S=1 3 DPS (10.0.4.2) 1.459 ms 1.347 ms 1.286 ms MPLS Label=1000003 CoS=0 TTL=1 S=1 4 MKS (192.168.44.1) 2.073 ms 1.642 ms 1.538 ms
  11. 11. LSP vs IGP <ul><li>OSPF Reachability </li></ul><ul><li>Using Static LSP </li></ul>jkt@Lab:Jakarta> show route 192.168.44.1 192.168.44.1/32 *[OSPF/10] 03:17:24, metric 3 > to 10.0.80.2 via em1.80 to 10.0.11.1 via em2.11 jkt@Lab:Jakarta> traceroute 192.168.44.1 traceroute to 192.168.44.1 (192.168.44.1), 30 hops max, 40 byte packets 1 BDG (10.0.80.2) 0.933 ms 0.701 ms 0.684 ms 2 DPS (10.0.70.2) 1.107 ms 1.011 ms 0.988 ms 3 MKS (192.168.44.1) 1.477 ms 1.377 ms 1.500 ms jkt@Lab:Jakarta> traceroute 192.168.44.1 traceroute to 192.168.44.1 (192.168.44.1), 30 hops max, 40 byte packets 1 SMG (10.0.11.1) 0.817 ms 0.750 ms 0.590 ms MPLS Label=1000001 CoS=0 TTL=1 S=1 2 SBY (10.0.0.2) 1.096 ms 1.061 ms 1.308 ms MPLS Label=1000002 CoS=0 TTL=1 S=1 3 DPS (10.0.4.2) 1.459 ms 1.347 ms 1.286 ms MPLS Label=1000003 CoS=0 TTL=1 S=1 4 MKS (192.168.44.1) 2.073 ms 1.642 ms 1.538 ms
  12. 12. Summary <ul><li>While using IGP (OSPF) </li></ul>jkt@Lab:Jakarta> show route 192.168.44.1 192.168.44.1/32 *[OSPF/10] 03:17:24, metric 3 > to 10.0.80.2 via em1.80 to 10.0.11.1 via em2.11 jkt@Lab:Jakarta> traceroute 192.168.44.1 traceroute to 192.168.44.1 (192.168.44.1), 30 hops max, 40 byte packets 1 BDG (10.0.80.2) 0.933 ms 0.701 ms 0.684 ms 2 DPS (10.0.70.2) 1.107 ms 1.011 ms 0.988 ms 3 MKS (192.168.44.1) 1.477 ms 1.377 ms 1.500 ms Will traverse through Bandung and Denpasar to reach Makasar
  13. 13. Summary <ul><li>LSP Configured </li></ul>jkt@Lab:Jakarta> traceroute 192.168.44.1 traceroute to 192.168.44.1 (192.168.44.1), 30 hops max, 40 byte packets 1 SMG (10.0.11.1) 1.618 ms 0.807 ms 0.679 ms MPLS Label=1000001 CoS=0 TTL=1 S=1 2 SBY (10.0.0.2) 1.088 ms 1.292 ms 1.011 ms MPLS Label=1000002 CoS=0 TTL=1 S=1 3 DPS (10.0.4.2) 1.307 ms 1.412 ms 1.295 ms MPLS Label=1000003 CoS=0 TTL=1 S=1 4 MKS (192.168.44.1) 1.635 ms 1.799 ms 1.592 ms Will traverse through Semarang, Surabaya and Denpasar to reach Makasar
  14. 14. Summary <ul><li>Returning Path (Omitting Transit Configuration) </li></ul>mks@Lab:Makasar> traceroute 192.168.8.1 traceroute to 192.168.8.1 (192.168.8.1), 30 hops max, 40 byte packets 1 DPS (10.0.60.1) 1.056 ms 0.876 ms 0.805 ms MPLS Label=1000100 CoS=0 TTL=1 S=1 2 BDG (10.0.70.1) 1.142 ms 1.160 ms 1.153 ms MPLS Label=1000101 CoS=0 TTL=1 S=1 3 JKT (192.168.8.1) 1.619 ms 1.598 ms 1.455 ms mks@Lab:Makasar> show configuration protocols mpls static-path inet { 192.168.8.1/32 { next-hop 10.0.60.1; push 1000100; } } interface all;
  15. 15. Appendix – Complete Configuration jkt@Lab:Jakarta> show configuration interfaces { em1 { unit 80 { vlan-id 80; family inet { address 10.0.80.1/30; } family mpls; } } em2 { unit 11 { vlan-id 11; family inet { address 10.0.11.2/30; } family mpls; } } lo0 { unit 8 { family inet { address 192.168.8.1/32; } } } } protocols { mpls { static-path inet { 192.168.44.1/32 { next-hop 10.0.11.1; push 1000001; } } interface all; } ospf { area 0.0.0.0 { interface all; } } }
  16. 16. smg@Lab:Semarang> show configuration interfaces { em1 { unit 0 { vlan-id 0; family inet { address 10.0.0.1/30; } family mpls; } unit 3 { vlan-id 3; family inet { address 10.0.3.1/30; } family mpls; } unit 11 { vlan-id 11; family inet { address 10.0.11.1/30; } family mpls; } } lo0 { unit 16 { family inet { address 192.168.16.1/32; } } } } protocols { mpls { interface all; interface em1.11 { label-map 1000001 { next-hop 10.0.0.2; swap 1000002; } } } ospf { area 0.0.0.0 { interface all; } } }
  17. 17. bdg@Lab:Bandung> show configuration interfaces { em1 { unit 70 { vlan-id 70; family inet { address 10.0.70.1/30; } family mpls; } } em2 { unit 3 { vlan-id 3; family inet { address 10.0.3.2/30; } family mpls; } unit 80 { vlan-id 80; family inet { address 10.0.80.2/30; } family mpls; } } lo0 { unit 12 { family inet { address 192.168.12.1/32; } } } } protocols { mpls { interface all; interface em1.70 { label-map 1000101 { next-hop 10.0.80.1; swap 0; } } } ospf { area 0.0.0.0 { interface all; } } }
  18. 18. sby@Lab:Surabaya> show configuration interfaces { em1 { unit 4 { vlan-id 4; family inet { address 10.0.4.1/30; } family mpls; } unit 9 { vlan-id 9; family inet { address 10.0.9.1/30; } family mpls; } } em2 { unit 0 { vlan-id 0; family inet { address 10.0.0.2/30; } family mpls; } } lo0 { unit 36 { family inet { address 192.168.36.1/32; } } } } protocols { mpls { interface all; interface em2.0 { label-map 1000002 { next-hop 10.0.4.2; swap 1000003; } } } ospf { area 0.0.0.0 { interface all; } } }
  19. 19. sby@Lab:Surabaya> show configuration interfaces { em1 { unit 4 { vlan-id 4; family inet { address 10.0.4.1/30; } family mpls; } unit 9 { vlan-id 9; family inet { address 10.0.9.1/30; } family mpls; } } em2 { unit 0 { vlan-id 0; family inet { address 10.0.0.2/30; } family mpls; } } lo0 { unit 36 { family inet { address 192.168.36.1/32; } } } } protocols { mpls { interface all; interface em2.0 { label-map 1000002 { next-hop 10.0.4.2; swap 1000003; } } } ospf { area 0.0.0.0 { interface all; } } }
  20. 20. dps@Lab:Denpasar> show configuration interfaces { em1 { unit 60 { vlan-id 60; family inet { address 10.0.60.1/30; } family mpls; } } em2 { unit 4 { vlan-id 4; family inet { address 10.0.4.2/30; } family mpls; } unit 70 { vlan-id 70; family inet { address 10.0.70.2/30; } family mpls; } } lo0 { unit 40 { family inet { address 192.168.40.1/32; } } } } protocols { mpls { interface all; interface em1.60 { label-map 1000003 { next-hop 10.0.60.2; swap 0; } label-map 1000100 { next-hop 10.0.70.1; swap 1000101; } } } ospf { area 0.0.0.0 { interface all; } } }
  21. 21. mks@Lab:Makasar> show configuration interfaces { em2 { unit 9 { vlan-id 9; family inet { address 10.0.9.2/30; } family mpls; } unit 60 { vlan-id 60; family inet { address 10.0.60.2/30; } family mpls; } } lo0 { unit 44 { family inet { address 192.168.44.1/32; } } } } protocols { mpls { static-path inet { 192.168.8.1/32 { next-hop 10.0.60.1; push 1000100; } } interface all; } ospf { area 0.0.0.0 { interface all; } } }

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