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=4.17 ms

--- 192.168.1.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 4.174/4.174/4.174/0.000 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=0.549 ms

--- 192.168.2.3 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.549/0.549/0.549/0.000 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=0.561 ms

--- 192.168.1.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.561/0.561/0.561/0.000 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=0.654 ms

--- 192.168.3.3 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.654/0.654/0.654/0.000 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=0.475 ms

--- 192.168.2.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.475/0.475/0.475/0.000 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=0.222 ms

--- 192.168.3.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.222/0.222/0.222/0.000 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/-          4.226s            35.771s 192.168.1.2     eth0:192.168.1.1                     1     0     0
3.3.3.3           1 Full/-          1.529s            38.469s 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/-          4.317s            33.049s 192.168.1.1     eth0:192.168.1.2                     1     0     0
3.3.3.3           1 Full/-          1.619s            38.379s 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/-          1.720s            32.949s 192.168.2.1     eth1:192.168.2.3                     1     0     0
2.2.2.2           1 Full/-          1.720s            35.581s 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: 1125200223
                Remote ID: 2313074933
                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): 273ms
                        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: 2856938766
                Remote ID: 3859166728
                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): 258ms
                        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 192.168.1.1 local-address 192.168.1.2 vrf default interface eth0
                ID: 3859166728
                Remote ID: 2856938766
                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): 279ms
                        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 192.168.3.3 local-address 192.168.3.2 vrf default interface eth2
                ID: 2648976787
                Remote ID: 2773260272
                Active mode
                Status: up
                Uptime: 0 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 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 192.168.3.2 local-address 192.168.3.3 vrf default interface eth2
                ID: 2773260272
                Remote ID: 2648976787
                Active mode
                Status: up
                Uptime: 0 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 192.168.2.1 local-address 192.168.2.3 vrf default interface eth1
                ID: 2313074933
                Remote ID: 1125200223
                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): 273ms
                        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