Page Comparison

Part 1

Analyzing the Topology

show ospf neighbor

show ospf database router

show ted database

show ted database 172.20.20.1

show ted database 172.20.20.1 extensive

>> >2 Interfaces; To: 172.20.20.3 and To: 172.20.20.4

Code Block

title	ted database
collapse	true

lab@vmx-2> show ted database 172.20.20.1 
TED database: 0 ISIS nodes 6 INET nodes
ID                            Type Age(s) LnkIn LnkOut Protocol
172.20.20.1                   Rtr  145447     2      2 OSPF(0.0.0.0)
    To: 172.20.20.3, Local: 172.22.101.1, Remote: 172.22.101.2
      Local interface index: 339, Remote interface index: 0
    To: 172.20.20.4, Local: 172.22.102.1, Remote: 172.22.102.2
      Local interface index: 340, Remote interface index: 0


lab@vmx-2> show ted database 172.20.20.1 extensive  
TED database: 0 ISIS nodes 6 INET nodes
NodeID: 172.20.20.1
  Type: Rtr, Age: 145495 secs, LinkIn: 2, LinkOut: 2
  Protocol: OSPF(0.0.0.0)
    To: 172.20.20.3, Local: 172.22.101.1, Remote: 172.22.101.2
      Local interface index: 339, Remote interface index: 0
      Color: 0xa bronze gold
      Metric: 1
      Static BW: 1000Mbps
      Reservable BW: 1000Mbps
      Available BW [priority] bps:
          [0] 900Mbps      [1] 900Mbps     [2] 900Mbps     [3] 900Mbps     
          [4] 900Mbps      [5] 900Mbps     [6] 900Mbps     [7] 900Mbps     
      Interface Switching Capability Descriptor(1):
        Switching type: Packet
        Encoding type: Packet
        Maximum LSP BW [priority] bps:
          [0] 900Mbps      [1] 900Mbps     [2] 900Mbps     [3] 900Mbps     
          [4] 900Mbps      [5] 900Mbps     [6] 900Mbps     [7] 900Mbps     
      P2P Adjacency-SID:
        IPV4, SID: 1012, Flags: 0x34, Weight: 0
    To: 172.20.20.4, Local: 172.22.102.1, Remote: 172.22.102.2
      Local interface index: 340, Remote interface index: 0
      Color: 0xc bronze silver
      Metric: 1
      Static BW: 1000Mbps
      Reservable BW: 1000Mbps
      Available BW [priority] bps:
          [0] 1000Mbps     [1] 1000Mbps    [2] 1000Mbps    [3] 1000Mbps    
          [4] 1000Mbps     [5] 1000Mbps    [6] 1000Mbps    [7] 1000Mbps    
      Interface Switching Capability Descriptor(1):
        Switching type: Packet
        Encoding type: Packet
        Maximum LSP BW [priority] bps:
          [0] 1000Mbps     [1] 1000Mbps    [2] 1000Mbps    [3] 1000Mbps    
          [4] 1000Mbps     [5] 1000Mbps    [6] 1000Mbps    [7] 1000Mbps    
      P2P Adjacency-SID:
        IPV4, SID: 1022, Flags: 0x34, Weight: 0
   Prefixes:                            
     172.20.20.1/32
      Flags: 0x60
      Prefix-SID:
        SID: 101, Flags: 0x00, Algo: 0
   SPRING-Capabilities:
     SRGB block [Start: 800000, Range: 4000, Flags: 0x00]
   SPRING-Algorithms:
     Algo: 0

lab@vmx-2>

Part 2

Loading The Configuration In

crpd

ssh lab@northstar

sudo docker exec -it crpd cli

load override /home/configs/reset.config

show ospf database summary

show ospf database advertising-router 172.20.20.2

Code Block

title	show ospf database
collapse	true

lab@vmx-2> show ospf database summary 
Area 0.0.0.0:
   6 Router LSAs
   56 OpaqArea LSAs
Externals:
   1 Extern LSAs
Interface ge-0/0/1.0:
Area 0.0.0.0:
Interface ge-0/0/2.0:
Area 0.0.0.0:
Interface lo0.0:
Area 0.0.0.0:

lab@vmx-2> show ospf database advertising-router 172.20.20.2 

    OSPF database, Area 0.0.0.0
 Type       ID               Adv Rtr           Seq      Age  Opt  Cksum  Len 
Router  *172.20.20.2      172.20.20.2      0x800000aa   795  0x22 0xf054  84
OpaqArea*1.0.0.1          172.20.20.2      0x80000088  1396  0x22 0xf306  28
OpaqArea*1.0.0.3          172.20.20.2      0x8000008d  1997  0x22 0x3a88 136
OpaqArea*1.0.0.4          172.20.20.2      0x8000008c   198  0x22 0xe1da 136
OpaqArea*4.0.0.0          172.20.20.2      0x80000040  2598  0x22 0x8870  44
OpaqArea*7.0.0.1          172.20.20.2      0x80000045   795  0x22 0xa99b  44
OpaqArea*8.0.0.1          172.20.20.2      0x80000040  2297  0x22 0xce49  48
OpaqArea*8.0.0.2          172.20.20.2      0x80000018  1096  0x22 0x57db  48
    OSPF AS SCOPE link state database
 Type       ID               Adv Rtr           Seq      Age  Opt  Cksum  Len 
Extern  *192.168.1.0      172.20.20.2      0x80000040  1696  0x22 0x7ab7  36

LSA types

Type 1 ( Router ) , Type 4 , Type 7 , and Type 8

OpaqArea*1.0.0.x RtrAddr or Link ( Max rsv BW, unRsvBW , . . .)

The Type-1 used to communicate link characteristics for traffic engineering purposes.

OpaqArea*4.0.0.0

The Type-4 uses to calculate forwarding labels

OpaqArea*7.0.0.1 Extended Link : link type, prefix, Prefix SID ( SID )

the Type-7 advertises the node segment ID for router vmx-5, and the IP address of the node

OpaqArea*8.0.0.x Extended Link : link type, Link ID ( IF IP@) and Adjacency SID (Label SID )

the Type-8 advertises the node segment ID for router vmx-5, and the IP address of the node

Traffic-engineering information is advertised in OSPF type-10 LSAs
These are opaque LSAs and have area flooding scope, which is why
you cannot have TE tunnels running through multiple areas

Type 5 ( OSPF ASBR External LSA )

show ospf database advertising-router 172.20.20.2

show ospf database advertising-router 172.20.20.1

Code Block

title	LSA
collapse	true

lab@vmx-2> show ospf database advertising-router 172.20.20.2                       

    OSPF database, Area 0.0.0.0
 Type       ID               Adv Rtr           Seq      Age  Opt  Cksum  Len 
Router  *172.20.20.2      172.20.20.2      0x800000a9  1470  0x22 0xf253  84
OpaqArea*1.0.0.1          172.20.20.2      0x80000087  2071  0x22 0xf505  28
OpaqArea*1.0.0.3          172.20.20.2      0x8000008c  2672  0x22 0x3c87 136
OpaqArea*1.0.0.4          172.20.20.2      0x8000008b   873  0x22 0xe3d9 136
OpaqArea*4.0.0.0          172.20.20.2      0x80000040   573  0x22 0x8870  44
OpaqArea*7.0.0.1          172.20.20.2      0x80000044  1470  0x22 0xab9a  44
OpaqArea*8.0.0.1          172.20.20.2      0x80000040   272  0x22 0xce49  48
OpaqArea*8.0.0.2          172.20.20.2      0x80000017  1770  0x22 0x59da  48
    OSPF AS SCOPE link state database
 Type       ID               Adv Rtr           Seq      Age  Opt  Cksum  Len 
Extern  *192.168.1.0      172.20.20.2      0x8000003f  2371  0x22 0x7cb6  36


lab@vmx-2> show ospf database advertising-router 172.20.20.2 lsa-id 192.168.1.0 extensive 
    OSPF AS SCOPE link state database
 Type       ID               Adv Rtr           Seq      Age  Opt  Cksum  Len 
Extern  *192.168.1.0      172.20.20.2      0x8000003f  2580  0x22 0x7cb6  36
  mask 255.255.255.0
  Topology default (ID 0)
    Type: 2, Metric: 0, Fwd addr: 0.0.0.0, Tag: 0.0.0.0
  Gen timer 00:01:59
  Aging timer 00:16:59
  Installed 00:43:00 ago, expires in 00:17:00, sent 00:42:58 ago
  Last changed 1d 22:53:53 ago, Change count: 1, Ours

lab@vmx-2>


lab@vmx-2> show ospf database advertising-router 172.20.20.1    

    OSPF database, Area 0.0.0.0
 Type       ID               Adv Rtr           Seq      Age  Opt  Cksum  Len 
Router   172.20.20.1      172.20.20.1      0x80000045  2370  0x22 0x1bbc  84
OpaqArea 1.0.0.1          172.20.20.1      0x80000041  1869  0x22 0x7ec4  28
OpaqArea 1.0.0.3          172.20.20.1      0x80000041   869  0x22 0xb168 136
OpaqArea 1.0.0.4          172.20.20.1      0x80000041  2867  0x22 0xf727 136
OpaqArea 8.0.0.1          172.20.20.1      0x80000040  1369  0x22 0x4cb2  36
OpaqArea 8.0.0.2          172.20.20.1      0x80000040   370  0x22 0x23dc  36

Code Block

title	ospf overview
collapse	true

lab@vmx-2> show ospf overview 
Instance: master
  Router ID: 172.20.20.2
  Route table index: 0
  AS boundary router
  LSA refresh time: 50 minutes
  Traffic engineering
  SPRING: Enabled
    SRGB Config Range :
      SRGB Start-Label : 800000, SRGB Index-Range : 4000
    SRGB Block Allocation: Success
      SRGB Start Index : 800000, SRGB Size : 4000, Label-Range: [ 800000, 803999 ]
    Node Segments: Enabled
    Ipv4 Index : 102
  Post Convergence Backup: Disabled
  Area: 0.0.0.0
    Stub type: Not Stub
    Authentication Type: None
    Area border routers: 0, AS boundary routers: 0
    Neighbors
      Up (in full state): 2
  Topology: default (ID 0)
    Prefix export count: 1
    Full SPF runs: 127
    SPF delay: 0.200000 sec, SPF holddown: 5 sec, SPF rapid runs: 3
    Backup SPF: Not Needed
                                        
lab@vmx-2>

externalk route on vmx-1 ( from vmx-2)

show ospf route extern extensive

Code Block

title	OSPF external route
collapse	true

lab@vmx-1> show ospf route extern extensive 
Topology default Route Table:

Prefix             Path  Route      NH       Metric NextHop       Nexthop      
                   Type  Type       Type            Interface     Address/LSP
192.168.1.0/24     Ext2  Network    IP            0 ge-0/0/1.0    172.22.101.2
                                                    ge-0/0/2.0    172.22.102.2
  area 0.0.0.0, origin 172.20.20.2, priority medium

Part 3

NorthStar Provisioning Segment Routed LSPs

Part 4

Resetting the Lab Topology In

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Versions Compared

Old Version 12

New Version 13

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