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New Member

setting the ip-prec-bit with IP-ONLY IOS on 1760


i have the task to set the ip-prec bit for outgoing pakets on my s0/0

framerelay interface:


interface Serial0/0

description Int S0/0 - Verbdg. zum BR-Wels

bandwidth 256

no ip address

encapsulation frame-relay IETF

load-interval 30

max-reserved-bandwidth 95

no snmp trap link-status

no fair-queue

frame-relay traffic-shaping

frame-relay lmi-type q933a


interface Serial0/0.1 point-to-point

description Serial0/0.1: Verbindg. zum BR-Wels

ip address

frame-relay class 256k

frame-relay interface-dlci 154



map-class frame-relay 256k

frame-relay adaptive-shaping becn

frame-relay cir 243000

frame-relay bc 24300

frame-relay be 0

frame-relay mincir 243000

service-policy output policy_256


policy-map policy_256

class dedect_voip

priority 80

class dedect_premium

bandwidth percent 30

class dedect_gold

bandwidth percent 20

class dedect_silver

bandwidth percent 10

class class-default



i am not able to do so in the policy-map because the "set" command is not supported in ip-only !?!

also i cant configure "rate-limit" to set the ip-prec-bit because in ip-only this

command is not supported too.

anyone an idea ????

thanks for help !

  • Other Network Infrastructure Subjects
New Member

Re: setting the ip-prec-bit with IP-ONLY IOS on 1760

What is the IOS release?

You should be able to use a route-map on the inbound interfaces to get this to work. Something like this, but don't quote me exactly. I beleive it works in 12.1.18 IP only

route-map rm_setipprec

match interface serial0/0.1

set ip precedence 4

interface fe0/0

ip policy route-map rm_setipprec

Can you use route-maps on inbound

New Member

Re: setting the ip-prec-bit with IP-ONLY IOS on 1760


thanks for your answer - but:

iroute-amp is also an option that i do not want to use because i did testing

with virus attacks and saw that if there is any route-map on the fasteth

the router is not managable - if there is no route map it is still alive olthough

i transmit about 90 mb/s to the fast eth !

so this is a reason why i do not want to configure route-map !


thanks for the answer !