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Latest post 02-10-2010 8:53 AM by Edward Lam. 0 replies.
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  • 02-10-2010 8:53 AM

    R&S WB Vol 4 - lab 2 , ticket 10

    I just partially fix the ticket. The lab is simulated in GNS3 with rack1 confguration.
    R3 is configured to join group 239.1.1.1

    So far I can sucessfully ping 239.1.1.1 from R1 and R5 , but not R4 as requried in the exercise.

    Please advise me what goes wrong or any clue for further troubleshooting.

    Below is the caputre from R5 & R4:

    R5 ( rp of 239.0.0.0/8):

    Rack1R5#sh ip pim rp map
    PIM Group-to-RP Mappings
    This system is an RP (Auto-RP)

    Group(s) 225.0.0.0/8
      RP 150.1.2.2 (?), v2v1
        Info source: 150.1.8.8 (?), elected via Auto-RP
             Uptime: 00:53:29, expires: 00:02:03
    Group(s) 239.0.0.0/8
      RP 150.1.5.5 (?), v2v1
        Info source: 150.1.8.8 (?), elected via Auto-RP
             Uptime: 00:53:49, expires: 00:02:04
    Rack1R5#

    Rack1R5#                                                                                                              
    Rack1R5#ping 239.1.1.1 repeat 5                                                                                       

    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 239.1.1.1, timeout is 2 seconds:

    Reply to request 0 from 141.1.123.3, 100 ms
    Reply to request 0 from 141.1.123.3, 100 ms.
    Reply to request 2 from 141.1.123.3, 112 ms
    Reply to request 2 from 141.1.123.3, 112 ms
    Reply to request 3 from 141.1.123.3, 64 ms
    Reply to request 3 from 141.1.123.3, 64 ms
    Reply to request 4 from 141.1.123.3, 40 ms
    Reply to request 4 from 141.1.123.3, 40 ms
    Rack1R5#

    ! debug of R5 - debug ip pim auto-rp & debug ip mpacket

    Rack1R5#                                          
    *Mar  1 00:41:59.219: Auto-RP(0): Build RP-Announce for 150.1.5.5, PIMv2/v1, ttl 16, ht 181
    *Mar  1 00:41:59.223: Auto-RP(0):  Build announce entry for (239.0.0.0/8)                 
    *Mar  1 00:41:59.227: Auto-RP(0): Send RP-Announce packet of length 48 on Tunnel0         
    *Mar  1 00:41:59.227: Auto-RP(0): Send RP-Announce packet of length 48 on FastEthernet0/0 
    *Mar  1 00:41:59.227: Auto-RP(0): Send RP-Announce packet of length 48 on Serial0/0       
    *Mar  1 00:41:59.227: Auto-RP(0): Send RP-Announce packet of length 48 on FastEthernet0/1 
    *Mar  1 00:41:59.227: Auto-RP(0): Send RP-Announce packet of length 48 on Loopback0(*)    
    *Mar  1 00:41:59.227: IP(0): s=150.1.5.5 (Loopback0) d=224.0.1.39 id=4937, ttl=15,        
    Rack1R5# prot=17, len=48(48), mrouting disabled                                           
    Rack1R5#                                                                                  
    *Mar  1 00:42:05.275: IP(0): s=150.1.8.8 (FastEthernet0/1) d=224.0.1.40 id=1672, ttl=15, prot=17, len=74(60), mrouting disabled                                                                                                              
    *Mar  1 00:42:05.287: Auto-RP(0): Received RP-discovery packet of length 60, from 150.1.8.8, RP_cnt 2, ht 181         
    *Mar  1 00:42:05.291: Auto-RP(0): Update (225.0.0.0/8, RP:150.1.2.2), PIMv2 v1                                        
    *Mar  1 00:42:05.295: Auto-RP(0): Update (239.0.0.0/8, RP:150.1.5.5), PIMv2 v1                                        
    Rack1R5#                                                                                                              
    Rack1R5#                                                                                                              
    *Mar  1 00:42:19.439: IP(0): s=150.1.2.2 (Tunnel0) d=224.0.1.39 id=2129, ttl=14, prot=17, len=48(48), mrouting disabled
    *Mar  1 00:42:19.495: IP(0): s=150.1.2.2 (FastEthernet0/1) d=224.0.1.39 id=2130, ttl=15, prot=17, len=62(48), not RPF interface                    

    Rack1R5#                                                                                                              
    Rack1R5#sh ip mroute 239.1.1.1                                                                                        
    IP Multicast Routing Table                                                                                            
    Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,                                          
           L - Local, P - Pruned, R - RP-bit set, F - Register flag,                                                      
           T - SPT-bit set, J - Join SPT, M - MSDP created entry,                                                         
           X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,                                            
           U - URD, I - Received Source Specific Host Report,                                                             
           Z - Multicast Tunnel, z - MDT-data group sender,                                                               
           Y - Joined MDT-data group, y - Sending to MDT-data group                                                       
    Outgoing interface flags: H - Hardware switched, A - Assert winner                                                    
     Timers: Uptime/Expires                                                                                               
     Interface state: Interface, Next-Hop or VCD, State/Mode                                                              

    (*, 239.1.1.1), 00:37:20/stopped, RP 150.1.5.5, flags: S
      Incoming interface: Null, RPF nbr 0.0.0.0            
      Outgoing interface list:                             
        Tunnel0, Forward/Sparse, 00:37:20/00:02:30         

    (141.1.54.4, 239.1.1.1), 00:00:33/00:02:26, flags: T
      Incoming interface: Serial0/0, RPF nbr 141.1.54.4
      Outgoing interface list:                         
        Tunnel0, Forward/Sparse, 00:00:33/00:02:26     

    (141.1.145.4, 239.1.1.1), 00:00:33/00:02:26, flags: T
      Incoming interface: FastEthernet0/0, RPF nbr 141.1.145.4
      Outgoing interface list:                               
        Tunnel0, Forward/Sparse, 00:00:33/00:03:29           

    ! the above printout of sh ip mroute does not have entry  for (204.12.1.4 239.1.1.1)

    Rack1R5#sh ip pim inter

    Address          Interface                Ver/   Nbr    Query  DR     DR
                                                         Mode   Count  Intvl  Prior   
    150.1.5.5        Loopback0                v2/S   0      30     1      150.1.5.5
    141.1.25.5       Tunnel0                  v2/S   1      30     1      0.0.0.0 
    141.1.145.5      FastEthernet0/0          v2/S   1      30     1      141.1.145.5
    141.1.54.5       Serial0/0                v2/S   1      30     1      141.1.54.5
    141.1.0.5        FastEthernet0/1          v2/S   2      30     1      141.1.0.8 
    Rack1R5#          


    Rack1R5#sh ip pim int s0/0 detail                                              
    Serial0/0 is up, line protocol is up                                           
      Internet address is 141.1.54.5/24                                            
      Multicast switching: fast                                                    
      Multicast packets in/out: 13/0                                               
      Multicast TTL threshold: 0                                                   
      PIM: enabled                                                                 
        PIM version: 2, mode: sparse                                               
        PIM DR: 141.1.54.5 (this system)                                           
        PIM neighbor count: 1                                                      
        PIM Hello/Query interval: 30 seconds                                       
        PIM Hello packets in/out: 34/38                                            
        PIM State-Refresh processing: enabled                                      
        PIM State-Refresh origination: disabled                                    
        PIM NBMA mode: disabled                                                    
        PIM ATM multipoint signalling: disabled                                    
        PIM domain border: disabled                                                
      Multicast Tagswitching: disabled                                             
    Rack1R5#           

    Rack1R5#sh ip pim int fa0/0 detail                                             
    FastEthernet0/0 is up, line protocol is up                                     
      Internet address is 141.1.145.5/24                                           
      Multicast switching: fast                                                    
      Multicast packets in/out: 10/0                                               
      Multicast TTL threshold: 0                                                   
      PIM: enabled                                                                 
        PIM version: 2, mode: sparse                                               
        PIM DR: 141.1.145.5 (this system)                                          
        PIM neighbor count: 1                                                      
        PIM Hello/Query interval: 30 seconds                                       
        PIM Hello packets in/out: 26/34                                            
        PIM State-Refresh processing: enabled                                      
        PIM State-Refresh origination: disabled                                    
        PIM NBMA mode: disabled                                                    
        PIM ATM multipoint signalling: disabled                                    
        PIM domain border: disabled                                                
      Multicast Tagswitching: disabled                                             
    Rack1R5#                             

    !!!!!!!!!!! capture of R4  !!!!!1

    Rack1R4#                                                                    
    Rack1R4#sh ip route 150.1.5.5                                               
    Routing entry for 150.1.5.5/32                                              
      Known via "ospf 1", distance 110, metric 2, type intra area               
      Redistributing via rip                                                    
      Advertised by rip metric 1                                                
      Last update from 141.1.145.5 on FastEthernet0/0, 00:30:38 ago             
      Routing Descriptor Blocks:                                                
      * 141.1.145.5, from 150.1.5.5, 00:30:38 ago, via FastEthernet0/0          
          Route metric is 2, traffic share count is 1                           

    Rack1R4#
    *Mar  1 00:33:01.407: IP(0): s=150.1.5.5 (FastEthernet0/0) d=224.0.1.39 id=3861, ttl=15, prot=17, len=62(48), mroute olist null                                                                                                              
    *Mar  1 00:33:01.415: IP(0): s=150.1.5.5 (Serial0/0) d=224.0.1.39 id=3862, ttl=15, prot=17, len=52(48), not RPF interface                                                                                                                    
    Rack1R4#                                                                                                              
    *Mar  1 00:34:01.475: IP(0): s=150.1.5.5 (FastEthernet0/0) d=224.0.1.39 id=3987, ttl=15, prot=17, len=62(48), mroute olist null                                                                                                              
    *Mar  1 00:34:01.483: IP(0): s=150.1.5.5 (Serial0/0) d=224.0.1.39 id=3988, ttl=15, prot=17, len=52(48), not RPF interface                               


    Rack1R4#ping 239.1.1.1 repeat 5                                                                                       

    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 239.1.1.1, timeout is 2 seconds:
    .....                                                            
    Rack1R4# sh ip pim rp map                                        
    PIM Group-to-RP Mappings                                         

    Rack1R4#

    Rack1R4#sh ip pim int

    Address          Interface                Ver/   Nbr    Query  DR     DR
                                              Mode   Count  Intvl  Prior   
    141.1.145.4      FastEthernet0/0          v2/S   1      30     1      141.1.145.5
    141.1.54.4       Serial0/0                v2/S   1      30     1      141.1.54.5
    204.12.1.4       FastEthernet0/1          v2/S   0      30     1      204.12.1.4
    Rack1R4#           

    Rack1R4#sh ip pim int fa0/1 detail
    FastEthernet0/1 is up, line protocol is up
      Internet address is 204.12.1.4/24      
      Multicast switching: fast              
      Multicast packets in/out: 34/0         
      Multicast TTL threshold: 0             
      PIM: enabled                           
        PIM version: 2, mode: sparse         
        PIM DR: 204.12.1.4 (this system)     
        PIM neighbor count: 0                
        PIM Hello/Query interval: 30 seconds 
        PIM Hello packets in/out: 0/37       
        PIM State-Refresh processing: enabled
        PIM State-Refresh origination: disabled
        PIM NBMA mode: disabled               
        PIM ATM multipoint signalling: disabled
        PIM domain border: disabled           
      Multicast Tagswitching: disabled        
    Rack1R4#                                  
    Rack1R4#sh ip pim int fa0/0 detail        
    FastEthernet0/0 is up, line protocol is up
      Internet address is 141.1.145.4/24      
      Multicast switching: fast               
      Multicast packets in/out: 15/0          
      Multicast TTL threshold: 0              
      PIM: enabled                            
        PIM version: 2, mode: sparse          
        PIM DR: 141.1.145.5                   
        PIM neighbor count: 1                 
        PIM Hello/Query interval: 30 seconds  
        PIM Hello packets in/out: 33/38       
        PIM State-Refresh processing: enabled 
        PIM State-Refresh origination: disabled
        PIM NBMA mode: disabled               
        PIM ATM multipoint signalling: disabled
        PIM domain border: disabled           
      Multicast Tagswitching: disabled        
    Rack1R4#                              

    Rack1R4#                                                          
    Rack1R4#sh ip pim int s0/0 detail                                 
    Serial0/0 is up, line protocol is up                              
      Internet address is 141.1.54.4/24                               
      Multicast switching: fast                                       
      Multicast packets in/out: 15/4                                  
      Multicast TTL threshold: 0                                      
      PIM: enabled                                                    
        PIM version: 2, mode: sparse                                  
        PIM DR: 141.1.54.5                                            
        PIM neighbor count: 1                                         
        PIM Hello/Query interval: 30 seconds                          
        PIM Hello packets in/out: 31/41                               
        PIM State-Refresh processing: enabled                         
        PIM State-Refresh origination: disabled                       
        PIM NBMA mode: disabled                                       
        PIM ATM multipoint signalling: disabled                       
        PIM domain border: disabled                                   
      Multicast Tagswitching: disabled                                
    Rack1R4#                  

     

    • Post Points: 5
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