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Saturday, July 21, 2012

eigrp lab 1 part 2...


configure serial interfaces...

r1#sh run int s0/0                                                                 
Building configuration...                                                          
                                                                                   
Current configuration : 116 bytes                                                  
!                                                                                  
interface Serial0/0                                                                
 ip address 10.1.200.1 255.255.255.0                                               
 encapsulation ppp                                                                 
 no fair-queue                                                                     
 clock rate 64000                                                                  
end                                                                                
 r1#ping 10.1.200.2                                                                
                                                                                  
Type escape sequence to abort.                                                    
Sending 5, 100-byte ICMP Echos to 10.1.200.2, timeout is 2 seconds:               
!!!!!                                                                             
Success rate is 100 percent (5/5), round-trip min/avg/max = 28/29/32 ms           
r1#
                                                                              
r1#sh int s0/0                                                                     
Serial0/0 is up, line protocol is up                                               
  Hardware is PowerQUICC Serial                                                    
  Internet address is 10.1.200.1/24                                                
  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,

the interface is clocked at 64000 k... this is vital...  the bw is yet t1 speed... do not confuse these two...

the clock rate does not set the bw, THEY ARE EXCLUSIVE... on serial interfaces these should match because: 

 
The bandwidth command however does not adjust the speed of the line at all, however it should be configured on ALL DTE and DCE interfaces because it is used by;
1/ Routing protocols – to calculate the cost of a path
2/ QOS (Quality of Service) – to identify how much bandwidth is availble to prioritize, If no bandwidth command has been configured on the interface, Routing protocols and QOS will assume the line is running at the maximum speed supported by the interface which can result in incorrect routing and incorrect prioritization of packets.


match them with the bandwidth command on both sides:

r1(config)#int s0/0                                                                
r1(config-if)#bandw 64                                                             
r1(config-if)#end

r2#sh int s0/0                                                                     
Serial0/0 is up, line protocol is up                                               
  Hardware is PowerQUICC Serial                                                    
  Internet address is 10.1.200.2/24                                                
  MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, 

create loopbacks on r3 according to the diagram, and set the network statements to reflect the proper wildcard masks... and turn off auto-summary please...


r3#config t                                                                        
Enter configuration commands, one per line.  End with CNTL/Z.                      
r3(config)#int lo11                                                                
r3(config-if)#ip add 192.168.100.1 255.255.255.252                                 
r3(config-if)#int lo15                                                             
r3(config-if)#ip add 192.168.100.5 255.255.255.252                                 
r3(config)#router eigrp 1                                                          
r3(config-router)#netw 192.168.100.0 0.0.0.3                                       
r3(config-router)#netw 192.168.100.4 0.0.0.3                                       
r3(config-router)#no auto-summ

r1#sh ip route eigrp                                                                           
     10.0.0.0/8 is variably subnetted, 6 subnets, 2 masks                                      
D       10.1.3.0/24 [90/156160] via 10.1.100.3, 00:38:36, FastEthernet0/0                      
D       10.1.2.0/24 [90/156160] via 10.1.100.2, 00:38:36, FastEthernet0/0                      
     192.168.100.0/30 is subnetted, 2 subnets                                                  
D       192.168.100.4 [90/156160] via 10.1.100.3, 00:03:44, FastEthernet0/0                    
D       192.168.100.0 [90/156160] via 10.1.100.3, 00:03:44, FastEthernet0/0                    
r1#
r3#sh ip proto                                                                                 
Routing Protocol is "eigrp 1"                                                                  
  Outgoing update filter list for all interfaces is not set                                    
  Incoming update filter list for all interfaces is not set                                    
  Default networks flagged in outgoing updates                                                 
  Default networks accepted from incoming updates                                              
  EIGRP metric weight K1=1, K2=0, K3=1, K4=0,    K5=0                                             
  EIGRP maximum hopcount 100                                                                   
  EIGRP maximum metric variance 1                                                              
  Redistributing: eigrp 1                                                                      
  EIGRP NSF-aware route hold timer is 240s                                                     
  Automatic network summarization is not in effect                                             
  Maximum path: 4                                                                              
  Routing for Networks:                                                                        
    10.0.0.0                                                                                   
    192.168.100.0/30                                                                           
    192.168.100.4/30                                                                           
  Routing Information Sources:                                                                 
    Gateway         Distance      Last Update                                                  
    (this router)         90      00:18:19                                                     
    10.1.100.2            90      00:05:16                                                     
    10.1.100.1            90      00:05:16                                                     
  Distance: internal 90 external 170                                                           
                               

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