It is taking 8  bits, hence the value.

The last two bits are for ECN which is set 00

EF = 101110, now append that ECN

10111000 = B8 = 184

With regards
Kings

On Tue, May 15, 2012 at 6:13 AM, Eugene Pefti <[email protected]>wrote:

>  Hello folks,****
>
> I ran into different ways of setting DSCP values.****
>
> My two  QoS relating tasks ask to match for VoIP traffic with DSCP value
> equals to EF.****
>
> Then the verifications use something that I have no idea how to understand
> and cross-check with Cisco documentation.****
>
> ** **
>
> E.g. The first task verifies it with IP SLA setting the ToS to 184.****
>
> The calculations of ToS value are based on the fact that the actual value
> of EF is 46 and then the corresponding ToS byte is 46*4=184:****
>
> ** **
>
> *Ip sla 1*
>
> *  udp-echo 10.5.5.5 32767 source-ip 10.8.8.8 source-port 32767 control
> disable*
>
> *tos 184*
>
> *timeout 1000*
>
> *frequency 1*
>
> ** **
>
> Another task uses telnet to mark all telnet traffic with DSCP value of EF
> by setting it right away to 0XB8. ****
>
> ** **
>
> *ip telnet tos B8*
>
> ** **
>
> I understand that 0xB8 equals to 184 in decimal but what are the rules  of
> setting DSCP in two different cases ? Is there any Cisco guide that can be
> used to consolidate this knowledge and access it in case of a problem
> during the lab ?****
>
> ** **
>
> Eugene****
>
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