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.

../../../_images/topology8.svg

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=0.582 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.582/0.582/0.582/0.000 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 parallel 1
Expect this output in DUT1:
Connecting to host 10.0.0.1, port 5001
[  5] local 10.0.0.2 port 55018 connected to 10.0.0.1 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  2.91 MBytes  24.4 Mbits/sec  196   5.66 KBytes
[  5]   1.00-2.00   sec  1.49 MBytes  12.5 Mbits/sec  132   8.48 KBytes
[  5]   2.00-3.00   sec  1.06 MBytes  8.86 Mbits/sec  118   17.0 KBytes
[  5]   3.00-4.00   sec  1.12 MBytes  9.38 Mbits/sec  130   8.48 KBytes
[  5]   4.00-5.00   sec  1.12 MBytes  9.38 Mbits/sec  132   32.5 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  7.69 MBytes  12.9 Mbits/sec  708             sender
[  5]   0.00-5.00   sec  7.04 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=0.404 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.404/0.404/0.404/0.000 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=44 packets=1 bytes=84 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=44 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=0.317 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.317/0.317/0.317/0.000 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=45 packets=1 bytes=84 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=45 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=0.557 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.557/0.557/0.557/0.000 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=46 packets=1 bytes=84 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=46 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=0.450 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.450/0.450/0.450/0.000 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=47 packets=1 bytes=84 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=47 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=0.438 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.438/0.438/0.438/0.000 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=48 vrf=RED packets=1 bytes=84 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=48 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=0.627 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.627/0.627/0.627/0.000 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 30 09:52:40.104635 osdx OSDxCLI[1789]: User 'admin' added a new cfg line: 'set interfaces ethernet eth0 address 10.0.0.1/24'.
Jul 30 09:52:40.188833 osdx OSDxCLI[1789]: User 'admin' added a new cfg line: 'set interfaces ethernet eth0 traffic policy in POLICY'.
Jul 30 09:52:40.244268 osdx OSDxCLI[1789]: User 'admin' added a new cfg line: 'set traffic policy POLICY rule 1 log prefix "DEBUG-"'.
Jul 30 09:52:40.335188 osdx OSDxCLI[1789]: User 'admin' added a new cfg line: 'set traffic policy POLICY rule 1 log level err'.
Jul 30 09:52:40.409946 osdx OSDxCLI[1789]: User 'admin' added a new cfg line: 'show working'.
Jul 30 09:52:40.532932 osdx kernel: 8021q: adding VLAN 0 to HW filter on device eth0
Jul 30 09:52:40.801719 osdx cfgd[1242]: [1789]Completed change to active configuration
Jul 30 09:52:40.803718 osdx OSDxCLI[1789]: User 'admin' committed the configuration.
Jul 30 09:52:40.851034 osdx OSDxCLI[1789]: User 'admin' left the configuration menu.
Jul 30 09:52:41.439642 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=62416 DF PROTO=ICMP TYPE=8 CODE=0 ID=49 SEQ=1

Test Policy Advisor

Description

In this scenario, an ingress traffic policy is configured in DUT0 (‘eth0’ interface). The advisor option is configured to enable/disable the rule depending on the advisor status. If the rule is enabled, incoming traffic will be dropped.

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 advisor ADV test false
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set traffic policy POLICY rule 1 action drop
set traffic policy POLICY rule 1 advisor ADV

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=0.504 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.504/0.504/0.504/0.000 ms

Step 4: Modify the following configuration lines in DUT0:

set system advisor ADV test true

Step 5: Expect a failure in the following command: 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.

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 0 received, 100% packet loss, time 0ms

Step 6: Modify the following configuration lines in DUT0:

set system advisor ADV test false

Step 7: 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=0.339 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.339/0.339/0.339/0.000 ms