What if we are not using a classifier as such but utilising already marked DSCP traffic. How do we apply the Policer to the Ingress interface when using, for example the following queue mechanism: set class-of-service classifiers dscp v4-ba-classifier forwarding-class voice loss-priority low code-points 101110 --- and then applying as follows: set class-of-service interfaces ge-1/0/1 unit 0 classifiers dscp v4-ba-classifier
this video is 6 years old and i belive that the uploader is somewhere on earth not going to see their old video 😂. im going to try answer this, i think its depend on your case and application. soo its custom defined, they only show us how to make a portion of BW-limit and Burst value.
@@melmels1337 What I don't get is why it's mandatory to configure a burst size, if I say I want the traffic to have 10Mbps on avg bandwidth and stop there, why doesn't Junos accept it.? this tells me that there is a relation between burst size and bandwidth configured but I cannot see it as well
Probably a bit late for this reply but I am using a Cisco device with extended ping to test. If you want to mark the traffic adjust the ToS field but remember that Cisco add 2 zeros. So, on extended ping, when you want to mark voice DSCP (Normally 46 - 101110) on the ToS part, you will have to put 184, as Cisco add the 2 bits as follows: 10111000 = 184 ...... That will give you VoIP DSCP marked traffic for EF (Expedited-forwarding)....
Great explanation. How you can compute the burst-size-limit? Thanks.
excelent explanation
What if we are not using a classifier as such but utilising already marked DSCP traffic. How do we apply the Policer to the Ingress interface when using, for example the following queue mechanism: set class-of-service classifiers dscp v4-ba-classifier forwarding-class voice loss-priority low code-points 101110 --- and then applying as follows: set class-of-service interfaces ge-1/0/1 unit 0 classifiers dscp v4-ba-classifier
How do you determine the Bandwidth-limit and Burst-size value, when defining a policer?
this video is 6 years old and i belive that the uploader is somewhere on earth not going to see their old video 😂. im going to try answer this, i think its depend on your case and application. soo its custom defined, they only show us how to make a portion of BW-limit and Burst value.
@@melmels1337 What I don't get is why it's mandatory to configure a burst size, if I say I want the traffic to have 10Mbps on avg bandwidth and stop there, why doesn't Junos accept it.?
this tells me that there is a relation between burst size and bandwidth configured but I cannot see it as well
How does one get hping onto an srx?
I doubt he's using hping on an SRX....that's most likely a linux box or a windows machine setup for the host
Probably a bit late for this reply but I am using a Cisco device with extended ping to test. If you want to mark the traffic adjust the ToS field but remember that Cisco add 2 zeros. So, on extended ping, when you want to mark voice DSCP (Normally 46 - 101110) on the ToS part, you will have to put 184, as Cisco add the 2 bits as follows: 10111000 = 184 ...... That will give you VoIP DSCP marked traffic for EF (Expedited-forwarding)....