Bfd Ospf Three Devs

Test to check BFD protocol in OSPF with three devices.

../../../_images/bfdospfthreedevs.svg

Test Connection With Three Devices

Description

Tests connection between three devices with BFD in OSPF by checking if they are each others peers and their status is up.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces dummy dum0 address 10.0.0.1/24
set interfaces ethernet eth0 address 192.168.1.1/24
set interfaces ethernet eth0 ip ospf bfd
set interfaces ethernet eth0 ip ospf network point-to-point
set interfaces ethernet eth1 address 192.168.2.1/24
set interfaces ethernet eth1 ip ospf bfd
set interfaces ethernet eth1 ip ospf network point-to-point
set protocols ospf area 0 network 10.0.0.0/24
set protocols ospf area 0 network 192.168.1.0/24
set protocols ospf area 1 network 192.168.2.0/24
set protocols ospf parameters router-id 1.1.1.1
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 2: Set the following configuration in DUT1 :

set interfaces dummy dum0 address 10.0.0.2/24
set interfaces ethernet eth0 address 192.168.1.2/24
set interfaces ethernet eth0 ip ospf bfd
set interfaces ethernet eth0 ip ospf network point-to-point
set interfaces ethernet eth2 address 192.168.3.2/24
set interfaces ethernet eth2 ip ospf bfd
set interfaces ethernet eth2 ip ospf network point-to-point
set protocols ospf area 0 network 10.0.0.0/24
set protocols ospf area 0 network 192.168.1.0/24
set protocols ospf area 2 network 192.168.3.0/24
set protocols ospf parameters router-id 2.2.2.2
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Set the following configuration in DUT2 :

set interfaces dummy dum0 address 10.0.0.3/24
set interfaces ethernet eth1 address 192.168.2.3/24
set interfaces ethernet eth1 ip ospf bfd
set interfaces ethernet eth1 ip ospf network point-to-point
set interfaces ethernet eth2 address 192.168.3.3/24
set interfaces ethernet eth2 ip ospf bfd
set interfaces ethernet eth2 ip ospf network point-to-point
set protocols ospf area 0 network 10.0.0.0/24
set protocols ospf area 1 network 192.168.2.0/24
set protocols ospf area 2 network 192.168.3.0/24
set protocols ospf parameters router-id 3.3.3.3
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Note

Check connectivity

Step 4: Ping the IP address 192.168.1.2 from DUT0:

admin@DUT0$ ping 192.168.1.2 count 1 size 56 timeout 1
Show output
PING 192.168.1.2 (192.168.1.2) 56(84) bytes of data.
64 bytes from 192.168.1.2: icmp_seq=1 ttl=64 time=0.411 ms

--- 192.168.1.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.411/0.411/0.411/0.000 ms

Step 5: Ping the IP address 192.168.2.3 from DUT0:

admin@DUT0$ ping 192.168.2.3 count 1 size 56 timeout 1
Show output
PING 192.168.2.3 (192.168.2.3) 56(84) bytes of data.
64 bytes from 192.168.2.3: icmp_seq=1 ttl=64 time=0.335 ms

--- 192.168.2.3 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.335/0.335/0.335/0.000 ms

Step 6: Ping the IP address 192.168.1.1 from DUT1:

admin@DUT1$ ping 192.168.1.1 count 1 size 56 timeout 1
Show output
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.651 ms

--- 192.168.1.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.651/0.651/0.651/0.000 ms

Step 7: Ping the IP address 192.168.3.3 from DUT1:

admin@DUT1$ ping 192.168.3.3 count 1 size 56 timeout 1
Show output
PING 192.168.3.3 (192.168.3.3) 56(84) bytes of data.
64 bytes from 192.168.3.3: icmp_seq=1 ttl=64 time=0.309 ms

--- 192.168.3.3 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.309/0.309/0.309/0.000 ms

Step 8: Ping the IP address 192.168.2.1 from DUT2:

admin@DUT2$ ping 192.168.2.1 count 1 size 56 timeout 1
Show output
PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data.
64 bytes from 192.168.2.1: icmp_seq=1 ttl=64 time=0.678 ms

--- 192.168.2.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.678/0.678/0.678/0.000 ms

Step 9: Ping the IP address 192.168.3.2 from DUT2:

admin@DUT2$ ping 192.168.3.2 count 1 size 56 timeout 1
Show output
PING 192.168.3.2 (192.168.3.2) 56(84) bytes of data.
64 bytes from 192.168.3.2: icmp_seq=1 ttl=64 time=0.482 ms

--- 192.168.3.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.482/0.482/0.482/0.000 ms

Note

Check that they are each other’s neighbors

Step 10: Run the command protocols ospf show neighbor on DUT0 and check whether the output contains the following tokens:

2.2.2.2
3.3.3.3
Show output
Neighbor ID     Pri State           Up Time         Dead Time Address         Interface                        RXmtL RqstL DBsmL
2.2.2.2           1 Full/-          1.810s            38.188s 192.168.1.2     eth0:192.168.1.1                     1     0     0
3.3.3.3           1 Full/-          4.059s            30.498s 192.168.2.3     eth1:192.168.2.1                     1     0     0

Step 11: Run the command protocols ospf show neighbor on DUT1 and check whether the output contains the following tokens:

1.1.1.1
3.3.3.3
Show output
Neighbor ID     Pri State           Up Time         Dead Time Address         Interface                        RXmtL RqstL DBsmL
1.1.1.1           1 Full/-          1.922s            35.826s 192.168.1.1     eth0:192.168.1.2                     1     0     0
3.3.3.3           1 Full/-          1.922s            30.387s 192.168.3.3     eth2:192.168.3.2                     1     0     0

Step 12: Run the command protocols ospf show neighbor on DUT2 and check whether the output contains the following tokens:

1.1.1.1
2.2.2.2
Show output
Neighbor ID     Pri State           Up Time         Dead Time Address         Interface                        RXmtL RqstL DBsmL
1.1.1.1           1 Full/-          4.274s            35.724s 192.168.2.1     eth1:192.168.2.3                     1     0     0
2.2.2.2           1 Full/-          2.025s            37.974s 192.168.3.2     eth2:192.168.3.3                     1     0     0

Note

Check that they are each other’s peers and that their status is up (the BFD session has been successfully established)

Step 13: Run the command protocols bfd show peers on DUT0 and check whether the output contains the following tokens:

192.168.1.2
Status: up
192.168.2.3
Status: up
Show output
BFD Peers:
peer 192.168.2.3 local-address 192.168.2.1 vrf default interface eth1
ID: 3317218041
Remote ID: 622252792
Active mode
Status: up
Uptime: 3 second(s)
Diagnostics: ok
Remote diagnostics: ok
Peer Type: dynamic
RTT min/avg/max: 0/0/0 usec
Local timers:
Detect-multiplier: 3
Receive interval: 300ms
Transmission interval: 300ms
Transmission interval (actual with jitter): 276ms
Detection timeout: 900ms
Echo receive interval: 50ms
Echo transmission interval: disabled
Remote timers:
Detect-multiplier: 3
Receive interval: 300ms
Transmission interval: 300ms
Echo receive interval: 50ms

peer 192.168.1.2 local-address 192.168.1.1 vrf default interface eth0
ID: 4070282899
Remote ID: 2201210376
Active mode
Status: up
Uptime: 1 second(s)
Diagnostics: ok
Remote diagnostics: ok
Peer Type: dynamic
RTT min/avg/max: 0/0/0 usec
Local timers:
Detect-multiplier: 3
Receive interval: 300ms
Transmission interval: 300ms
Transmission interval (actual with jitter): 294ms
Detection timeout: 900ms
Echo receive interval: 50ms
Echo transmission interval: disabled
Remote timers:
Detect-multiplier: 3
Receive interval: 300ms
Transmission interval: 300ms
Echo receive interval: 50ms

Step 14: Run the command protocols bfd show peers on DUT1 and check whether the output contains the following tokens:

192.168.1.1
Status: up
192.168.3.3
Status: up
Show output
BFD Peers:
peer 192.168.3.3 local-address 192.168.3.2 vrf default interface eth2
ID: 3748496312
Remote ID: 2878446498
Active mode
Status: up
Uptime: 1 second(s)
Diagnostics: ok
Remote diagnostics: ok
Peer Type: dynamic
RTT min/avg/max: 0/0/0 usec
Local timers:
Detect-multiplier: 3
Receive interval: 300ms
Transmission interval: 300ms
Transmission interval (actual with jitter): 243ms
Detection timeout: 900ms
Echo receive interval: 50ms
Echo transmission interval: disabled
Remote timers:
Detect-multiplier: 3
Receive interval: 300ms
Transmission interval: 300ms
Echo receive interval: 50ms

peer 192.168.1.1 local-address 192.168.1.2 vrf default interface eth0
ID: 2201210376
Remote ID: 4070282899
Active mode
Status: up
Uptime: 1 second(s)
Diagnostics: ok
Remote diagnostics: ok
Peer Type: dynamic
RTT min/avg/max: 0/0/0 usec
Local timers:
Detect-multiplier: 3
Receive interval: 300ms
Transmission interval: 300ms
Transmission interval (actual with jitter): 267ms
Detection timeout: 900ms
Echo receive interval: 50ms
Echo transmission interval: disabled
Remote timers:
Detect-multiplier: 3
Receive interval: 300ms
Transmission interval: 300ms
Echo receive interval: 50ms

Step 15: Run the command protocols bfd show peers on DUT2 and check whether the output contains the following tokens:

192.168.2.1
Status: up
192.168.3.2
Status: up
Show output
BFD Peers:
peer 192.168.2.1 local-address 192.168.2.3 vrf default interface eth1
ID: 622252792
Remote ID: 3317218041
Active mode
Status: up
Uptime: 3 second(s)
Diagnostics: ok
Remote diagnostics: ok
Peer Type: dynamic
RTT min/avg/max: 0/0/0 usec
Local timers:
Detect-multiplier: 3
Receive interval: 300ms
Transmission interval: 300ms
Transmission interval (actual with jitter): 246ms
Detection timeout: 900ms
Echo receive interval: 50ms
Echo transmission interval: disabled
Remote timers:
Detect-multiplier: 3
Receive interval: 300ms
Transmission interval: 300ms
Echo receive interval: 50ms

peer 192.168.3.2 local-address 192.168.3.3 vrf default interface eth2
ID: 2878446498
Remote ID: 3748496312
Active mode
Status: up
Uptime: 1 second(s)
Diagnostics: ok
Remote diagnostics: ok
Peer Type: dynamic
RTT min/avg/max: 0/0/0 usec
Local timers:
Detect-multiplier: 3
Receive interval: 300ms
Transmission interval: 300ms
Transmission interval (actual with jitter): 240ms
Detection timeout: 900ms
Echo receive interval: 50ms
Echo transmission interval: disabled
Remote timers:
Detect-multiplier: 3
Receive interval: 300ms
Transmission interval: 300ms
Echo receive interval: 50ms