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nodes:
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    configuration:
      - name: ios_config.txt
        content: "Building configuration...\n\nCurrent configuration : 3752 bytes\n\
          !\n! Last configuration change at 15:05:20 UTC Thu May 23 2024\n!\nversion\
          \ 17.12\nservice timestamps debug datetime msec\nservice timestamps log\
          \ datetime msec\n!\nhostname saumur\n!\nboot-start-marker\nboot-end-marker\n\
          !\n!\nno logging console\nno aaa new-model\n!\n!\n!\n!\n!\n!\n!\n!\n!\n\
          !\n!\n!\n!\nip audit notify log\nip audit po max-events 100\nno ip domain\
          \ lookup\nip cef\nlogin on-success log\nno ipv6 cef\n!\n!\n!\n!\n!\n!\n\
          !\nvtp version 1\nmultilink bundle-name authenticated\n!\ncrypto pki trustpoint\
          \ TP-self-signed-131184641\n enrollment selfsigned\n subject-name cn=IOS-Self-Signed-Certificate-131184641\n\
          \ revocation-check none\n rsakeypair TP-self-signed-131184641\n hash sha256\n\
          !\n!\ncrypto pki certificate chain TP-self-signed-131184641\n certificate\
          \ self-signed 01\n  3082032E 30820216 A0030201 02020101 300D0609 2A864886\
          \ F70D0101 0B050030\n  30312E30 2C060355 04030C25 494F532D 53656C66 2D536967\
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          !\n!\nmemory free low-watermark processor 80589\n!\n!\nspanning-tree mode\
          \ rapid-pvst\nspanning-tree extend system-id\nspanning-tree pathcost method\
          \ long\nspanning-tree vlan 1-4094 priority 4096\n!\n!\nvlan internal allocation\
          \ policy ascending\n!\n!\n!\n!\n!\ninterface Ethernet0/0\n switchport trunk\
          \ encapsulation dot1q\n switchport mode trunk\n bandwidth 1000000\n spanning-tree\
          \ link-type point-to-point\n!\ninterface Ethernet0/1\n switchport trunk\
          \ encapsulation dot1q\n switchport mode trunk\n bandwidth 1000000\n spanning-tree\
          \ link-type point-to-point\n!\ninterface Ethernet0/2\n switchport trunk\
          \ encapsulation dot1q\n switchport mode trunk\n bandwidth 1000000\n spanning-tree\
          \ link-type point-to-point\n!\ninterface Ethernet0/3\n switchport trunk\
          \ encapsulation dot1q\n switchport mode trunk\n bandwidth 1000000\n spanning-tree\
          \ link-type point-to-point\n spanning-tree cost 2000000\n!\nip forward-protocol\
          \ nd\n!\n!\nip http server\nip http secure-server\nip ssh bulk-mode 131072\n\
          !\n!\n!\n!\n!\n!\ncontrol-plane\n!\n!\n!\nline con 0\n exec-timeout 0 0\n\
          \ logging synchronous\nline aux 0\nline vty 0 4\n exec-timeout 0 0\n login\n\
          \ transport input ssh\n!\n!\nend"
    cpu_limit: null
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    hide_links: false
    id: n0
    image_definition: null
    label: saumur
    node_definition: ioll2-xe
    parameters: {}
    ram: null
    tags: []
    x: -160
    y: 240
    interfaces:
      - id: i0
        label: Loopback0
        type: loopback
      - id: i1
        label: Ethernet0/0
        slot: 0
        type: physical
      - id: i2
        label: Ethernet0/1
        slot: 1
        type: physical
      - id: i3
        label: Ethernet0/2
        slot: 2
        type: physical
      - id: i4
        label: Ethernet0/3
        slot: 3
        type: physical
  - boot_disk_size: null
    configuration:
      - name: ios_config.txt
        content: "Building configuration...\n\nCurrent configuration : 3474 bytes\n\
          !\n! Last configuration change at 15:05:20 UTC Thu May 23 2024\n!\nversion\
          \ 17.12\nservice timestamps debug datetime msec\nservice timestamps log\
          \ datetime msec\n!\nhostname bourgueil\n!\nboot-start-marker\nboot-end-marker\n\
          !\n!\nno logging console\nno aaa new-model\n!\n!\n!\n!\n!\n!\n!\n!\n!\n\
          !\n!\n!\n!\nip audit notify log\nip audit po max-events 100\nno ip domain\
          \ lookup\nip cef\nlogin on-success log\nno ipv6 cef\n!\n!\n!\n!\n!\n!\n\
          !\nvtp version 1\nmultilink bundle-name authenticated\n!\ncrypto pki trustpoint\
          \ TP-self-signed-131184643\n enrollment selfsigned\n subject-name cn=IOS-Self-Signed-Certificate-131184643\n\
          \ revocation-check none\n rsakeypair TP-self-signed-131184643\n hash sha256\n\
          !\n!\ncrypto pki certificate chain TP-self-signed-131184643\n certificate\
          \ self-signed 01\n  3082032E 30820216 A0030201 02020101 300D0609 2A864886\
          \ F70D0101 0B050030\n  30312E30 2C060355 04030C25 494F532D 53656C66 2D536967\
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          \ E6BD878A 4B40924B\n  BF375D78 067238CC 3DEA13FA EB531A24 89D0\n  \tquit\n\
          !\n!\nmemory free low-watermark processor 80589\n!\n!\nspanning-tree mode\
          \ rapid-pvst\nspanning-tree extend system-id\nspanning-tree pathcost method\
          \ long\n!\n!\nvlan internal allocation policy ascending\n!\n!\n!\n!\n!\n\
          interface Ethernet0/0\n switchport trunk encapsulation dot1q\n switchport\
          \ mode trunk\n bandwidth 1000000\n spanning-tree link-type point-to-point\n\
          !\ninterface Ethernet0/1\n!\ninterface Ethernet0/2\n switchport trunk encapsulation\
          \ dot1q\n switchport mode trunk\n bandwidth 1000000\n spanning-tree link-type\
          \ point-to-point\n spanning-tree cost 200000\n!\ninterface Ethernet0/3\n\
          !\nip forward-protocol nd\n!\n!\nip http server\nip http secure-server\n\
          ip ssh bulk-mode 131072\n!\n!\n!\n!\n!\n!\ncontrol-plane\n!\n!\n!\nline\
          \ con 0\n exec-timeout 0 0\n logging synchronous\nline aux 0\nline vty 0\
          \ 4\n exec-timeout 0 0\n login\n transport input ssh\n!\n!\nend"
    cpu_limit: null
    cpus: null
    data_volume: null
    hide_links: false
    id: n1
    image_definition: null
    label: bourgueil
    node_definition: ioll2-xe
    parameters: {}
    ram: null
    tags: []
    x: -320
    y: 40
    interfaces:
      - id: i0
        label: Loopback0
        type: loopback
      - id: i1
        label: Ethernet0/0
        slot: 0
        type: physical
      - id: i2
        label: Ethernet0/1
        slot: 1
        type: physical
      - id: i3
        label: Ethernet0/2
        slot: 2
        type: physical
      - id: i4
        label: Ethernet0/3
        slot: 3
        type: physical
  - boot_disk_size: null
    configuration:
      - name: ios_config.txt
        content: "Building configuration...\n\nCurrent configuration : 3618 bytes\n\
          !\n! Last configuration change at 15:05:19 UTC Thu May 23 2024\n!\nversion\
          \ 17.12\nservice timestamps debug datetime msec\nservice timestamps log\
          \ datetime msec\n!\nhostname chinon\n!\nboot-start-marker\nboot-end-marker\n\
          !\n!\nno logging console\nno aaa new-model\n!\n!\n!\n!\n!\n!\n!\n!\n!\n\
          !\n!\n!\n!\nip audit notify log\nip audit po max-events 100\nno ip domain\
          \ lookup\nip cef\nlogin on-success log\nno ipv6 cef\n!\n!\n!\n!\n!\n!\n\
          !\nvtp version 1\nmultilink bundle-name authenticated\n!\ncrypto pki trustpoint\
          \ TP-self-signed-131184642\n enrollment selfsigned\n subject-name cn=IOS-Self-Signed-Certificate-131184642\n\
          \ revocation-check none\n rsakeypair TP-self-signed-131184642\n hash sha256\n\
          !\n!\ncrypto pki certificate chain TP-self-signed-131184642\n certificate\
          \ self-signed 01\n  3082032E 30820216 A0030201 02020101 300D0609 2A864886\
          \ F70D0101 0B050030\n  30312E30 2C060355 04030C25 494F532D 53656C66 2D536967\
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          \ 03550403 0C25494F\n  532D5365 6C662D53 69676E65 642D4365 72746966 69636174\
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          \ 1A67387E F7D93F5C\n  494584E5 342249BB FB15FDD2 358BD8DD 16CD\n  \tquit\n\
          !\n!\nmemory free low-watermark processor 80589\n!\n!\nspanning-tree mode\
          \ rapid-pvst\nspanning-tree extend system-id\nspanning-tree pathcost method\
          \ long\n!\n!\nvlan internal allocation policy ascending\n!\n!\n!\n!\n!\n\
          interface Ethernet0/0\n switchport trunk encapsulation dot1q\n switchport\
          \ mode trunk\n bandwidth 1000000\n spanning-tree link-type point-to-point\n\
          !\ninterface Ethernet0/1\n switchport trunk encapsulation dot1q\n switchport\
          \ mode trunk\n bandwidth 1000000\n spanning-tree link-type point-to-point\n\
          \ spanning-tree cost 200000\n!\ninterface Ethernet0/2\n switchport trunk\
          \ encapsulation dot1q\n switchport mode trunk\n bandwidth 1000000\n spanning-tree\
          \ link-type point-to-point\n spanning-tree cost 200000\n!\ninterface Ethernet0/3\n\
          !\nip forward-protocol nd\n!\n!\nip http server\nip http secure-server\n\
          ip ssh bulk-mode 131072\n!\n!\n!\n!\n!\n!\ncontrol-plane\n!\n!\n!\nline\
          \ con 0\n exec-timeout 0 0\n logging synchronous\nline aux 0\nline vty 0\
          \ 4\n exec-timeout 0 0\n login\n transport input ssh\n!\n!\nend"
    cpu_limit: null
    cpus: null
    data_volume: null
    hide_links: false
    id: n2
    image_definition: null
    label: chinon
    node_definition: ioll2-xe
    parameters: {}
    ram: null
    tags: []
    x: -160
    y: 40
    interfaces:
      - id: i0
        label: Loopback0
        type: loopback
      - id: i1
        label: Ethernet0/0
        slot: 0
        type: physical
      - id: i2
        label: Ethernet0/1
        slot: 1
        type: physical
      - id: i3
        label: Ethernet0/2
        slot: 2
        type: physical
      - id: i4
        label: Ethernet0/3
        slot: 3
        type: physical
  - boot_disk_size: null
    configuration:
      - name: ios_config.txt
        content: "Building configuration...\n\nCurrent configuration : 3619 bytes\n\
          !\n! Last configuration change at 15:05:20 UTC Thu May 23 2024\n!\nversion\
          \ 17.12\nservice timestamps debug datetime msec\nservice timestamps log\
          \ datetime msec\n!\nhostname souzay\n!\nboot-start-marker\nboot-end-marker\n\
          !\n!\nno logging console\nno aaa new-model\n!\n!\n!\n!\n!\n!\n!\n!\n!\n\
          !\n!\n!\n!\nip audit notify log\nip audit po max-events 100\nno ip domain\
          \ lookup\nip cef\nlogin on-success log\nno ipv6 cef\n!\n!\n!\n!\n!\n!\n\
          !\nvtp version 1\nmultilink bundle-name authenticated\n!\ncrypto pki trustpoint\
          \ TP-self-signed-131184644\n enrollment selfsigned\n subject-name cn=IOS-Self-Signed-Certificate-131184644\n\
          \ revocation-check none\n rsakeypair TP-self-signed-131184644\n hash sha256\n\
          !\n!\ncrypto pki certificate chain TP-self-signed-131184644\n certificate\
          \ self-signed 01\n  3082032E 30820216 A0030201 02020101 300D0609 2A864886\
          \ F70D0101 0B050030\n  30312E30 2C060355 04030C25 494F532D 53656C66 2D536967\
          \ 6E65642D 43657274\n  69666963 6174652D 31333131 38343634 34301E17 0D323430\
          \ 35323231 34303632\n  385A170D 33343035 32323134 30363238 5A303031 2E302C06\
          \ 03550403 0C25494F\n  532D5365 6C662D53 69676E65 642D4365 72746966 69636174\
          \ 652D3133 31313834\n  36343430 82012230 0D06092A 864886F7 0D010101 05000382\
          \ 010F0030 82010A02\n  82010100 E456C84C 80C144AC 7EFA5997 ED067674 DCD52CAD\
          \ AC256E3B 4879472F\n  4941C2AC 4D4FE0D5 F05A6C4A 439ABFD6 E5E721F0 CC109041\
          \ 0ED9905A B01A86EF\n  8FB7D1EF 1CECF51F 285F6614 FD3B4E51 CF07DBF8 1B384E6C\
          \ A538C5F3 A44C38FA\n  F6E622C6 8DC69DC3 2DF5D8A7 AD23F9FD 3991E953 A71B07B2\
          \ 69560BEE E682423A\n  28D2CBD8 EAEE63D8 70D2014B 32A32749 7BA3898A F15F253D\
          \ EAB68FBA 43BC90F8\n  A04DDA99 9BD4757D EB90F842 AFC2564B 542D365E 8BF2C577\
          \ 9416D5D7 44E009AD\n  F4A79D24 67EA2560 99CA7D21 1AD0EC08 7A88ADBA 6F4ADFD7\
          \ D70856C0 08A2815B\n  3A5F7E53 65EEBF25 CF8B981B AE61A997 8C7C48EA 0201450C\
          \ 5E3CAFC3 8219A60F\n  E9F78F01 02030100 01A35330 51301D06 03551D0E 04160414\
          \ 13E5DB22 1C449937\n  AA55DAC6 258A13FB EFABB217 301F0603 551D2304 18301680\
          \ 1413E5DB 221C4499\n  37AA55DA C6258A13 FBEFABB2 17300F06 03551D13 0101FF04\
          \ 05300301 01FF300D\n  06092A86 4886F70D 01010B05 00038201 010021BD E5A5734C\
          \ 8E470AAB B51C221F\n  6C968E82 C8632024 BA1F90BC 9D5C0DE8 9ADFCCB7 426E9534\
          \ CC8022F1 7829662E\n  A4974EC5 3FDE9824 A3943042 9B5F337D 5657DC92 1E4603EA\
          \ 5F849AAC 620D6134\n  F036B56C 4EB86AFA 1A1CED7D 0688802B 173F7BD9 7FFBE115\
          \ 61FC4D72 0E2785CB\n  CA6A42E7 5AB6BDC8 37A1BD57 7B9ED4A0 2545D04C ACD63D61\
          \ 1FCA7143 37499862\n  0B5A498C CDCFFA58 EA8A204C FEEFAB4B BE23F543 374AC78F\
          \ DFB58D1B 846AF745\n  7E8421B6 C3577F65 1D664031 2CC7AB33 21DD05AE CCD71117\
          \ 76CA1760 0A04D3E5\n  F473CD16 736FAB83 72D94334 EA06A82A 3768ABD5 2F594513\
          \ F19F053A EEC8179A\n  0570C50E 7A18BAC1 37F2AC16 EA7EC20D 61E2\n  \tquit\n\
          !\n!\nmemory free low-watermark processor 80589\n!\n!\nspanning-tree mode\
          \ rapid-pvst\nspanning-tree extend system-id\nspanning-tree pathcost method\
          \ long\n!\n!\nvlan internal allocation policy ascending\n!\n!\n!\n!\n!\n\
          interface Ethernet0/0\n switchport trunk encapsulation dot1q\n switchport\
          \ mode trunk\n bandwidth 1000000\n spanning-tree link-type point-to-point\n\
          !\ninterface Ethernet0/1\n switchport trunk encapsulation dot1q\n switchport\
          \ mode trunk\n bandwidth 1000000\n spanning-tree link-type point-to-point\n\
          \ spanning-tree cost 200000\n!\ninterface Ethernet0/2\n!\ninterface Ethernet0/3\n\
          \ switchport trunk encapsulation dot1q\n switchport mode trunk\n bandwidth\
          \ 1000000\n spanning-tree link-type point-to-point\n spanning-tree cost\
          \ 2000000\n!\nip forward-protocol nd\n!\n!\nip http server\nip http secure-server\n\
          ip ssh bulk-mode 131072\n!\n!\n!\n!\n!\n!\ncontrol-plane\n!\n!\n!\nline\
          \ con 0\n exec-timeout 0 0\n logging synchronous\nline aux 0\nline vty 0\
          \ 4\n exec-timeout 0 0\n login\n transport input ssh\n!\n!\nend"
    cpu_limit: null
    cpus: null
    data_volume: null
    hide_links: false
    id: n3
    image_definition: null
    label: souzay
    node_definition: ioll2-xe
    parameters: {}
    ram: null
    tags: []
    x: 0
    y: 40
    interfaces:
      - id: i0
        label: Loopback0
        type: loopback
      - id: i1
        label: Ethernet0/0
        slot: 0
        type: physical
      - id: i2
        label: Ethernet0/1
        slot: 1
        type: physical
      - id: i3
        label: Ethernet0/2
        slot: 2
        type: physical
      - id: i4
        label: Ethernet0/3
        slot: 3
        type: physical
links:
  - id: l0
    n1: n0
    n2: n1
    i1: i3
    i2: i1
    conditioning: {}
    label: saumur-Ethernet0/2<->bourgueil-Ethernet0/0
  - id: l1
    n1: n0
    n2: n2
    i1: i2
    i2: i1
    conditioning: {}
    label: saumur-Ethernet0/1<->chinon-Ethernet0/0
  - id: l2
    n1: n0
    n2: n3
    i1: i1
    i2: i1
    conditioning: {}
    label: saumur-Ethernet0/0<->souzay-Ethernet0/0
  - id: l3
    n1: n0
    n2: n3
    i1: i4
    i2: i4
    conditioning: {}
    label: saumur-Ethernet0/3<->souzay-Ethernet0/3
  - id: l4
    n1: n1
    n2: n2
    i1: i3
    i2: i2
    conditioning: {}
    label: bourgueil-Ethernet0/2<->chinon-Ethernet0/1
  - id: l5
    n1: n2
    n2: n3
    i1: i3
    i2: i2
    conditioning: {}
    label: chinon-Ethernet0/2<->souzay-Ethernet0/1
lab:
  description: 'solution of initial topology : saumur_PVRSTP'
  notes: "LAB Solution for configuring LAB saumur_PVRSTP\n\n1. part 1\n\nQuestion\
    \ 1:\nConsidering the redundant topology, where would you put the Root Node of\
    \ the PVRSTP topology ?\n\nAnswer 1 : Saumur\nIt has direct connection to other\
    \ nodes, and those direct connections should not be blocked by PVRSTP\n\n\nQuestion\
    \ 2:\nhow would you do that ?\n\nAnswer 2 :\n\n3. switch(config)# spanning-tree\
    \ vlan 1-4094 priority 4096\n\nso on saumur the configuration to enter is :\n\
    saumur(config)# spanning-tree vlan 1-4094 priority 4096\n\n\n2. part 2\n\nThe\
    \ switches are configured with spanning-tree pathcost method long\ni.e :\n\nPort\
    \ speed \tspanning-tree pathcost method long :\n\n10 Mbps \t2000000,\n\n100 Mbps\
    \ \t200000,\n\n1 Gbps \t20000,\n\n10 Gbps \t2000\n\n\nThe network admin has assigned\
    \ the following objectives to meet for the target redundant topology :\n\n.1)\
    \ the direct link (i.e. link-1-1, link-1-2, link-1-3) between saumur and\n   a\
    \ town mustn't be blocked by STP under nominal circumstances\n\n.2) in case of\
    \ a single direct link failing, the redundant link used should\n   prioritarily\
    \ be the additional link (i.e. link-1-4, link-1-5), if possible.\n\n.3) only when\
    \ several direct links between the root and towns have failed,\n   should the\
    \ link between souzay and saumur in the second sheath be used. (i.e. link-2-1)\n\
    \nTo achieve this, the network admin has choosen to configure administrative spanning-tree\
    \ costs on\nlinks to be used only in case of a failure.\n\nQuestion 3 : on the\
    \ target topology, what is the cost configuration that meets\nthe objectives of\
    \ the redundant topology as choosen by the network admin ?\n\nN.B. reminder to\
    \ configure a cost,  in interface configuration mode, use the command :\n\nswitch(config-if)#\
    \ spanning-tree cost COST\n\nwhere COST is the cost value you wan to configure.\n\
    \nAnswer 3 :\n\n.3. configure a cost of 200000 on both ends of link-1-4 & link-1-5\
    \ and\n   a cost of 2000000 on both ends of link-2-1\n\nso the configurations\
    \ to enter are :\n\nsaumur(config)# interface e0/3\n\nsaumur(config-if)# spanning-tree\
    \ cost 2000000\n\n\nbourgueil(config)# interface e0/2\n\nbourgueil(config-if)#\
    \ spanning-tree cost 200000\n\n\nchinon(config)# interface range e0/1-2\n\nchinon(config-if-range)#\
    \ spanning-tree cost 200000\n\n\nsouzay(config)# interface e0/3\n\nsouzay(config-if)#\
    \ spanning-tree cost 2000000\n\nsouzay(config)# interface e0/1\n\nsouzay(config-if)#\
    \ spanning-tree cost 200000\n\n\n\n.step 2 in the lab, verify the solution\n\n\
    Verification that the solution meets the objectives :\n\nN.B. all VLANs have the\
    \ same topology you can check with VLAN 1\n\n.1) (on all switches), issue :\n\
    show spanning-tree vlan 1\n\nare there any direct link (i.e. link-1-1 or link-1-2\
    \ or link-1-3) blocked by pvRSTP ?\n\n=> no port on saumur are blocked and no\
    \ port Ethernet0/0 are blocked on other switches by PVRSTP\n=> goal 1) met\n\n\
    .2) shuting any one direct link (i.e. link-1-1 or link-1-2 or link-1-3), e.g.\
    \ shut Ethernet0/2 on saumur\ndoes link-2-1 (Ethernet0/3) on souzay remains blocked\
    \ ?\n\nshow spanning-tree vlan 1\n\nit remains blocked because the spanning-tree\
    \ cost of Ethernet0/3 ports is higher than\nthat of link-1-4 and link-1-5\n=>\
    \ goal 2) met\n\n.3) by shuting every direct link (i.e. link-1-1 and link-1-2\
    \ and link-1-3)\ndoes link-2-1 transitions from blocked to forwarding and is forwarding\
    \ both of its ends ?\n\nshow spanning-tree vlan 1\n\nlink-2-1 (Ethernet0/3) on\
    \ souzay transitions from blocking to forwarding to provide the sheath 1 redundancy\n\
    => goal 3) met"
  title: saumur_PVRSTP_solution
  version: 0.2.2
