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 vif 100 address 10.0.0.1/24
set interfaces ethernet eth0 vif 100 traffic policy in POLICY_IN
set interfaces ethernet eth0 vif 100 traffic policy out POLICY_OUT
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set traffic policy POLICY_IN rule 1 action accept
set traffic policy POLICY_OUT

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 vif 100 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=0.708 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.708/0.708/0.708/0.000 ms

Step 4: Modify the following configuration lines in DUT0 :

delete traffic policy POLICY_IN rule 1 action accept
set traffic policy POLICY_IN 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_IN rule 1 action drop
set traffic policy POLICY_IN 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 42054 connected to 10.0.0.1 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  3.30 MBytes  27.7 Mbits/sec  223   24.0 KBytes
[  5]   1.00-2.00   sec  1.18 MBytes  9.90 Mbits/sec   98   18.4 KBytes
[  5]   2.00-3.00   sec  1.18 MBytes  9.90 Mbits/sec  132   2.83 KBytes
[  5]   3.00-4.00   sec   764 KBytes  6.25 Mbits/sec   90   2.83 KBytes
[  5]   4.00-5.00   sec  1.49 MBytes  12.5 Mbits/sec  121   29.7 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  7.90 MBytes  13.2 Mbits/sec  664             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 vif 100 address 10.0.0.1/24
set interfaces ethernet eth0 vif 100 traffic policy in POLICY_IN
set interfaces ethernet eth0 vif 100 traffic policy out POLICY_OUT
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set traffic policy POLICY_IN rule 1 copy tos connmark
set traffic policy POLICY_OUT

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 vif 100 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 5 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=0.784 ms
64 bytes from 10.0.0.1: icmp_seq=2 ttl=64 time=0.341 ms
64 bytes from 10.0.0.1: icmp_seq=3 ttl=64 time=0.367 ms
64 bytes from 10.0.0.1: icmp_seq=4 ttl=64 time=0.254 ms
64 bytes from 10.0.0.1: icmp_seq=5 ttl=64 time=0.375 ms

--- 10.0.0.1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4093ms
rtt min/avg/max/mdev = 0.254/0.424/0.784/0.184 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=316 packets=5 bytes=420 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=316 packets=5 bytes=420 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_IN rule 1 copy tos connmark
set traffic policy POLICY_IN 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 5 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=0.548 ms
64 bytes from 10.0.0.1: icmp_seq=2 ttl=64 time=0.322 ms
64 bytes from 10.0.0.1: icmp_seq=3 ttl=64 time=0.368 ms
64 bytes from 10.0.0.1: icmp_seq=4 ttl=64 time=1.35 ms
64 bytes from 10.0.0.1: icmp_seq=5 ttl=64 time=0.637 ms

--- 10.0.0.1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4011ms
rtt min/avg/max/mdev = 0.322/0.644/1.346/0.369 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=317 packets=5 bytes=420 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=317 packets=5 bytes=420 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 egress traffic policy is configured in DUT0 (‘eth0’ interface) to mark outgoing packets using ToS and CoS fields.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces ethernet eth0 vif 100 address 10.0.0.1/24
set interfaces ethernet eth0 vif 100 traffic policy in POLICY_IN
set interfaces ethernet eth0 vif 100 traffic policy out POLICY_OUT
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set traffic policy POLICY_IN
set traffic policy POLICY_OUT rule 1 set tos 12

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 vif 100 address 10.0.0.2/24
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Run command traffic dump monitor detail interface eth0 filter "host 10.0.0.2" at DUT1.

Step 4: Ping IP address 10.0.0.2 from DUT0:

admin@DUT0$ ping 10.0.0.2 count 1 size 56 timeout 1
Show output
PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.
64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=0.748 ms

--- 10.0.0.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.748/0.748/0.748/0.000 ms

Step 5: Modify the following configuration lines in DUT0 :

delete traffic policy POLICY_OUT rule 1 set tos
set traffic policy POLICY_OUT rule 1 set cos 5

Step 6: Run command traffic dump monitor detail interface eth0 filter "host 10.0.0.2" at DUT1.

Step 7: Ping IP address 10.0.0.2 from DUT0:

admin@DUT0$ ping 10.0.0.2 count 1 size 56 timeout 1
Show output
PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.
64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=11.3 ms

--- 10.0.0.2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 11.266/11.266/11.266/0.000 ms

Test Policy Set Conntrack Values

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 vif 100 address 10.0.0.1/24
set interfaces ethernet eth0 vif 100 traffic policy in POLICY_IN
set interfaces ethernet eth0 vif 100 traffic policy out POLICY_OUT
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set traffic policy POLICY_IN rule 1 set connmark 15
set traffic policy POLICY_OUT

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 vif 100 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 5 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=1.92 ms
64 bytes from 10.0.0.1: icmp_seq=2 ttl=64 time=0.347 ms
64 bytes from 10.0.0.1: icmp_seq=3 ttl=64 time=0.466 ms
64 bytes from 10.0.0.1: icmp_seq=4 ttl=64 time=0.298 ms
64 bytes from 10.0.0.1: icmp_seq=5 ttl=64 time=0.392 ms

--- 10.0.0.1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4036ms
rtt min/avg/max/mdev = 0.298/0.684/1.917/0.618 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=318 packets=5 bytes=420 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=318 packets=5 bytes=420 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_IN rule 1 set connmark
set traffic policy POLICY_IN 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 5 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=0.371 ms
64 bytes from 10.0.0.1: icmp_seq=2 ttl=64 time=0.312 ms
64 bytes from 10.0.0.1: icmp_seq=3 ttl=64 time=0.268 ms
64 bytes from 10.0.0.1: icmp_seq=4 ttl=64 time=1.07 ms
64 bytes from 10.0.0.1: icmp_seq=5 ttl=64 time=0.576 ms

--- 10.0.0.1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4049ms
rtt min/avg/max/mdev = 0.268/0.518/1.067/0.293 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=319 packets=5 bytes=420 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=319 packets=5 bytes=420 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_IN rule 1 set app-id
set interfaces ethernet eth0 vif 100 vrf RED
set system vrf RED
set traffic policy POLICY_IN rule 1 set vrf RED

Step 9: Ping IP address 10.0.0.1 from DUT1:

admin@DUT1$ ping 10.0.0.1 count 5 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=0.716 ms
64 bytes from 10.0.0.1: icmp_seq=2 ttl=64 time=0.357 ms
64 bytes from 10.0.0.1: icmp_seq=3 ttl=64 time=0.365 ms
64 bytes from 10.0.0.1: icmp_seq=4 ttl=64 time=0.434 ms
64 bytes from 10.0.0.1: icmp_seq=5 ttl=64 time=0.265 ms

--- 10.0.0.1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4041ms
rtt min/avg/max/mdev = 0.265/0.427/0.716/0.153 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=320 vrf=RED packets=5 bytes=420 src=10.0.0.1 dst=10.0.0.2 type=0 code=0 id=320 vrf=RED packets=5 bytes=420 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. Additionally, an invalid log prefix is included to illustrate the maximum length allowed.

Scenario

Step 1: Set the following configuration in DUT0 :

set interfaces ethernet eth0 vif 100 address 10.0.0.1/24
set interfaces ethernet eth0 vif 100 traffic policy in POLICY_IN
set interfaces ethernet eth0 vif 100 traffic policy out POLICY_OUT
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set traffic policy POLICY_IN rule 1 log level err
set traffic policy POLICY_IN rule 1 log prefix Lorem-ipsum-dolor-sit-amet-consectetur-adipiscing-elit-quisque-lorem-ipsum-dolor-sit-ame-vit
set traffic policy POLICY_OUT

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 vif 100 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=0.635 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.635/0.635/0.635/0.000 ms

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

[Lorem-ipsum-dolor-sit-amet-consectetur-adipiscing-elit-quisque-lorem-ipsum-dolor-sit-ame-vit-1] ACCEPT IN=eth0
Show output
Jul 28 12:06:53.616512 osdx OSDxCLI[2568]: User 'admin' added a new cfg line: 'set traffic policy POLICY_IN rule 1 log level err'.
Jul 28 12:06:53.775162 osdx OSDxCLI[2568]: User 'admin' added a new cfg line: 'show working'.
Jul 28 12:06:53.932022 osdx ubnt-cfgd[7499]: inactive
Jul 28 12:06:54.035006 osdx INFO[7517]: FRR daemons did not change
Jul 28 12:06:54.071474 osdx kernel: 8021q: adding VLAN 0 to HW filter on device eth0
Jul 28 12:06:54.114416 osdx (udev-worker)[7564]: Network interface NamePolicy= disabled on kernel command line.
Jul 28 12:06:54.366389 osdx cfgd[1474]: [2568]Completed change to active configuration
Jul 28 12:06:54.387138 osdx OSDxCLI[2568]: User 'admin' committed the configuration.
Jul 28 12:06:54.441940 osdx OSDxCLI[2568]: User 'admin' left the configuration menu.
Jul 28 12:06:55.948024 osdx kernel: [Lorem-ipsum-dolor-sit-amet-consectetur-adipiscing-elit-quisque-lorem-ipsum-dolor-sit-ame-vit-1] ACCEPT IN=eth0.100 OUT= MAC=de:ad:be:ef:6c:00:de:ad:be:ef:6c:10:08:00:45:00:00:54 SRC=10.0.0.2 DST=10.0.0.1 LEN=84 TOS=0x00 PREC=0x00 TTL=64 ID=56580 DF PROTO=ICMP TYPE=8 CODE=0 ID=321 SEQ=1

Step 5: Run command configure at DUT0 and expect this output: Step 6: Run command set traffic policy INVALID_LOG_PREFIX rule 1 log prefix Lorem-ipsum-dolor-sit-amet-consectetur-adipiscing-elit-quisque-lorem-ipsum-dolor-sit-amet-vita at DUT0 and check if output contains the following tokens:

Log prefix must be 92 characters or less and must contain printable characters except those defined as part of the space character class
Show output
Log prefix must be 92 characters or less and must contain printable characters except those defined as part of the space character class
Value validation failed
CLI Error: Command error

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 vif 100 address 10.0.0.1/24
set interfaces ethernet eth0 vif 100 traffic policy in POLICY_IN
set interfaces ethernet eth0 vif 100 traffic policy out POLICY_OUT
set system advisor ADV test false
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
set traffic policy POLICY_IN rule 1 action drop
set traffic policy POLICY_IN rule 1 advisor ADV
set traffic policy POLICY_OUT

Step 2: Set the following configuration in DUT1 :

set interfaces ethernet eth0 vif 100 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=0.864 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.864/0.864/0.864/0.000 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=0.356 ms

--- 10.0.0.1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.356/0.356/0.356/0.000 ms