01-03-2019 04:25 AM
For an ISR 4431 chassis with an IOS-XE 3.16.6S, I noticed that there was a new option "dscp" on the command "ping X.X.X.X source Gi0 / 0/0 dscp af31".
What is the difference between the "dscp" option and the "tos" option?
Is the "dscp" option functional?
01-03-2019 05:08 AM
From my notes :
Here's the mapping you will need. "=" means something like "maps to" or "is equivelent to".
ef = dscp 46 = 101110 = tos 0xb8 (184) = ip prec 5
af31 = dscp 26 = 011010 = tos 0x68 (104) = ip prec 3
af32 = dscp 28 = 011100 = tos 0x70 (112) = ip prec 3
cs3 = dscp 24 = 011000 = tos 0x60 (96) = ip prec 3
You'll want to use the decimal tos values (in parenthesis) for your e-pings.
Difference from my point of view is, when you want to capture packet you do not see DSCP, then you need to map to ToS.
01-03-2019 05:52 AM
Thank you for this return but that is not my question.
I know the command "ping" with the extended option "TOS" but it appeared to the command "ping", an option "DSCP" in the latest versions IOS-XE and I wonder that it is the contribution of this new option compared to the option "TOS"
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