Policy

The following scenarios show how to configure different traffic policies. Policies can be used to manage and classify network packets. traffic selectors can be configured to filter packets based on certain fields.

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Test Policy Actions

Description

In this scenario, an ingress traffic policy is configured in DUT0 (‘eth0’ interface). Different traffic actions are configured to accept, drop or limit incoming traffic.

Scenario

Step 1: Set the following configuration in DUT0:

set interfaces ethernet eth0 address 10.0.0.1/24
set interfaces ethernet eth0 traffic policy in POLICY
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set traffic policy POLICY rule 1 action accept

Step 2: Set the following configuration in DUT1:

set interfaces ethernet eth0 address 10.0.0.2/24
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Ping IP address 10.0.0.1 from DUT1:

admin@DUT1$ ping 10.0.0.1 count 1 size 56 timeout 1
Show output
PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data.
64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=0.561 ms

--- 10.0.0.1 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 4: Modify the following configuration lines in DUT0:

delete traffic policy POLICY rule 1 action accept
set traffic policy POLICY rule 1 action drop

Step 5: Expect a failure in the following command: Initiate a udp connection from DUT1 to DUT0 and try to send some messages between both endpoints

admin@DUT0$ monitor test connection server 8080 udp
admin@DUT1$ monitor test connection client 10.0.0.1 8080 udp

Step 6: Modify the following configuration lines in DUT0:

delete traffic policy POLICY rule 1 action drop
set traffic policy POLICY rule 1 action rate-limit 10

Step 7: Initiate a bandwidth test from DUT1 to DUT0

admin@DUT0$ monitor test performance server port 5001
admin@DUT1$ monitor test performance client 10.0.0.1 duration 5 port 5001
Expect this output in DUT1:
Connecting to host 10.0.0.1, port 5001
[  5] local 10.0.0.2 port 58262 connected to 10.0.0.1 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  2.86 MBytes  24.0 Mbits/sec  228   7.07 KBytes
[  5]   1.00-2.00   sec  1.30 MBytes  10.9 Mbits/sec  125   7.07 KBytes
[  5]   2.00-3.00   sec   954 KBytes  7.82 Mbits/sec  109   7.07 KBytes
[  5]   3.00-4.00   sec  1.37 MBytes  11.5 Mbits/sec  124   8.48 KBytes
[  5]   4.00-5.00   sec  1.30 MBytes  10.9 Mbits/sec  122   8.48 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  7.77 MBytes  13.0 Mbits/sec  708             sender
[  5]   0.00-5.00   sec  7.01 MBytes  11.8 Mbits/sec                  receiver

iperf Done.

Note

Previous test should show a very low bandwidth rate.


Test Policy Copy

Description

In this scenario, an ingress traffic policy is configured in DUT0 (‘eth0’ interface). Different copy actions are configured to store the ToS value in the conntrack mark and extra conntrack mark fields.

Scenario

Step 1: Set the following configuration in DUT0:

set interfaces ethernet eth0 address 10.0.0.1/24
set interfaces ethernet eth0 traffic policy in POLICY
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set traffic policy POLICY rule 1 copy tos connmark

Step 2: Set the following configuration in DUT1:

set interfaces ethernet eth0 address 10.0.0.2/24
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Ping IP address 10.0.0.1 from DUT1:

admin@DUT1$ ping 10.0.0.1 tos 12 count 1 size 56 timeout 1
Show output
PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data.
64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=0.407 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.407/0.407/0.407/0.000 ms

Step 4: Run command system conntrack show at DUT0 and check if output contains the following tokens:

mark=12
Show output
icmp     1 29 src=10.0.0.2 dst=10.0.0.1 type=8 code=0 id=222 packets=1 bytes=84 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=222 packets=1 bytes=84 mark=12 use=1
conntrack v1.4.7 (conntrack-tools): 1 flow entries have been shown.

Step 5: Modify the following configuration lines in DUT0:

delete traffic policy POLICY rule 1 copy tos connmark
set traffic policy POLICY rule 1 copy tos extra-connmark 1

Step 6: Ping IP address 10.0.0.1 from DUT1:

admin@DUT1$ ping 10.0.0.1 tos 12 count 1 size 56 timeout 1
Show output
PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data.
64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=0.241 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.241/0.241/0.241/0.000 ms

Step 7: Run command system conntrack show at DUT0 and check if output contains the following tokens:

emark1=12
Show output
icmp     1 29 src=10.0.0.2 dst=10.0.0.1 type=8 code=0 id=223 packets=1 bytes=84 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=223 packets=1 bytes=84 mark=0 emark1=12 use=1
conntrack v1.4.7 (conntrack-tools): 1 flow entries have been shown.

Test Policy Set

Description

In this scenario, an ingress traffic policy is configured in DUT0 (‘eth0’ interface). Different set actions are configured to change the conntrack mark, the app-id and the VRF.

Scenario

Step 1: Set the following configuration in DUT0:

set interfaces ethernet eth0 address 10.0.0.1/24
set interfaces ethernet eth0 traffic policy in POLICY
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set traffic policy POLICY rule 1 set connmark 15

Step 2: Set the following configuration in DUT1:

set interfaces ethernet eth0 address 10.0.0.2/24
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Ping IP address 10.0.0.1 from DUT1:

admin@DUT1$ ping 10.0.0.1 count 1 size 56 timeout 1
Show output
PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data.
64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=0.512 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.512/0.512/0.512/0.000 ms

Step 4: Run command system conntrack show at DUT0 and check if output contains the following tokens:

mark=15
Show output
icmp     1 29 src=10.0.0.2 dst=10.0.0.1 type=8 code=0 id=224 packets=1 bytes=84 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=224 packets=1 bytes=84 mark=15 use=1
conntrack v1.4.7 (conntrack-tools): 1 flow entries have been shown.

Step 5: Modify the following configuration lines in DUT0:

delete traffic policy POLICY rule 1 set connmark
set traffic policy POLICY rule 1 set app-id custom 80

Step 6: Ping IP address 10.0.0.1 from DUT1:

admin@DUT1$ ping 10.0.0.1 count 1 size 56 timeout 1
Show output
PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data.
64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=0.399 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.399/0.399/0.399/0.000 ms

Step 7: Run command system conntrack show at DUT0 and check if output contains the following tokens:

appdetect[U:80]
Show output
icmp     1 29 src=10.0.0.2 dst=10.0.0.1 type=8 code=0 id=225 packets=1 bytes=84 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=225 packets=1 bytes=84 mark=0 use=1 appdetect[U:80]
conntrack v1.4.7 (conntrack-tools): 1 flow entries have been shown.

Step 8: Modify the following configuration lines in DUT0:

delete traffic policy POLICY rule 1 set app-id
set interfaces ethernet eth0 vrf RED
set system vrf RED
set traffic policy POLICY rule 1 set vrf RED

Step 9: Ping IP address 10.0.0.1 from DUT1:

admin@DUT1$ ping 10.0.0.1 count 1 size 56 timeout 1
Show output
PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data.
64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=0.545 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.545/0.545/0.545/0.000 ms

Step 10: Run command system conntrack show at DUT0 and check if output contains the following tokens:

vrf=RED
Show output
icmp     1 29 src=10.0.0.2 dst=10.0.0.1 type=8 code=0 id=226 vrf=RED packets=1 bytes=84 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=226 vrf=RED packets=1 bytes=84 mark=0 use=1
conntrack v1.4.7 (conntrack-tools): 1 flow entries have been shown.

Test Policy Log

Description

In this scenario, an ingress traffic policy is configured in DUT0 (‘eth0’ interface). The log option is configured to show system messages that help debug and analyze the network status.

Scenario

Step 1: Set the following configuration in DUT0:

set interfaces ethernet eth0 address 10.0.0.1/24
set interfaces ethernet eth0 traffic policy in POLICY
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set traffic policy POLICY rule 1 log level err
set traffic policy POLICY rule 1 log prefix DEBUG-

Step 2: Set the following configuration in DUT1:

set interfaces ethernet eth0 address 10.0.0.2/24
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Ping IP address 10.0.0.1 from DUT1:

admin@DUT1$ ping 10.0.0.1 count 1 size 56 timeout 1
Show output
PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data.
64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=0.890 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.890/0.890/0.890/0.000 ms

Step 4: Run command system journal show | tail at DUT0 and check if output contains the following tokens:

[DEBUG--1] ACCEPT IN=eth0
Show output
Jul 03 15:30:25.227010 osdx OSDxCLI[51147]: User 'admin' added a new cfg line: 'set interfaces ethernet eth0 address 10.0.0.1/24'.
Jul 03 15:30:25.299761 osdx OSDxCLI[51147]: User 'admin' added a new cfg line: 'set interfaces ethernet eth0 traffic policy in POLICY'.
Jul 03 15:30:25.366128 osdx OSDxCLI[51147]: User 'admin' added a new cfg line: 'set traffic policy POLICY rule 1 log prefix "DEBUG-"'.
Jul 03 15:30:25.469239 osdx OSDxCLI[51147]: User 'admin' added a new cfg line: 'set traffic policy POLICY rule 1 log level err'.
Jul 03 15:30:25.560390 osdx OSDxCLI[51147]: User 'admin' added a new cfg line: 'show working'.
Jul 03 15:30:25.709936 osdx kernel: 8021q: adding VLAN 0 to HW filter on device eth0
Jul 03 15:30:25.838750 osdx cfgd[1440]: [51147]Completed change to active configuration
Jul 03 15:30:25.840954 osdx OSDxCLI[51147]: User 'admin' committed the configuration.
Jul 03 15:30:25.869499 osdx OSDxCLI[51147]: User 'admin' left the configuration menu.
Jul 03 15:30:26.601476 osdx kernel: [DEBUG--1] ACCEPT IN=eth0 OUT= MAC=de:ad:be:ef:6c:10:de:ad:be:ef:6c:20:08:00 SRC=10.0.0.2 DST=10.0.0.1 LEN=84 TOS=0x00 PREC=0x00 TTL=64 ID=60250 DF PROTO=ICMP TYPE=8 CODE=0 ID=227 SEQ=1