I have configured the Qos on my Core switch (C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(44)SE1) and I have notified that when MLS QOS is activate on the Core then it's not possible to match EF DSCP packet on my input policyp-map located on my WAN Router.
But when I remove the MLS QOS then I can match the EF DSCP packets, why ?
Yes you're right but I prefer to be sure of what is with DSCP set at 0 and DSCP at EF/CS3 (ie for ToIP).
For example, if an admin server is modifing his TCP/IP server stack to set the data to DSCP EF with the "no mls qos rewrite ip dscp" command I will not rewrite the DSCP to 0 and can have some problems further on my WAN ;)
In the other way, even if the Server's DSCP field is set to EF I will rewrite with my Core switch the DSCP field to 0 and no more congestion in the voice class on the WAN.
OK - but that was not the issue you were seeing, because you were rewriting the DSCP value, you were not matching on your policy on the WAN router. You were looking for the DSCP value in the IP header in the WAN to already be set to EF.
Perhaps you should just mark the traffic on the in-bound interface of your WAN router, and prioritise on the outbound interface connected to your WAN circuit.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.