12-21-2011 02:23 AM - edited 03-07-2019 04:00 AM
Hi!
I have made some test and i noticed that qos input policy does not classify the icmp packet based on their dscp.
The "match dscp ef" or "match precedence 5" is not working only the "match protocol icmp" shows hits.
We need to classify the different icmp packets based on dscp ( TOS ) for measurement purpose.
CISCO 7200, 12.4.25d and 12.4.20T have a same behavior.
Regards,
12-21-2011 03:33 AM
Hi,
is class-default getting hits?
Are you sure you marked the ICMP packets with dscp ef ?
What about extended ping with tos of 46X4=184= DSCP ef ?
Regards.
Alain
12-21-2011 06:35 AM
Hi,
there are hitting on the class which contains match protocol icmp!
the short config example
class P1
match dscp ef
class p2
match protocol icmp
policy-map pm
class P1
set dscp ef
class p2
set dscp af21
etc.
We woluld like that there are hit on the P1 class if wesend the ICMP with DSCP EF.
Our target that mgmt station would send ICMP's with diferrent DSCP settings to measure the network SLAs.
Voice, gold Qos class etc.
I tried the ICMP with ToS 184 from CISCO router!
Regards
12-21-2011 01:13 PM
Hi,
Can you post the show policy-map interface as well as sh class-map and show policy-map outputs
Regards.
Alain
12-22-2011 02:15 AM
Hi,
interface GigabitEthernet0/1
description INTERLINK ILKA fele
bandwidth 1000000
no ip address
ip flow ingress
ip flow egress
duplex auto
speed auto
media-type rj45
no negotiation auto
no cdp enable
service-policy input INPUT-CLASSIFY
hold-queue 150 in
pantel-e3#show policy-map INPUT-CLASSIFY
Policy Map INPUT-CLASSIFY
Class VOIP-RTP
set dscp ef
Class VOIP-SIGNALLING
set dscp cs3
Class PREMIUM1-DATA
set dscp cs2
Class PREMIUM2-DATA
set dscp af21
Class SUPPRESSED-DATA
set dscp af11
Class MGMT
set dscp cs1
Class class-default
set dscp default
class-map match-any VOIP-RTP
match protocol rtp
match protocol rtcp
match precedence 5
match ip dscp ef
match dscp ef
match protocol icmp
pantel-e3#sho policy-map interface gigabitEthernet 0/1 input class VOIP-RTP
GigabitEthernet0/1
Service-policy input: INPUT-CLASSIFY
Class-map: VOIP-RTP (match-any)
33811608 packets, 2700668455 bytes
5 minute offered rate 418000 bps, drop rate 0 bps
Match: protocol rtp
25278655 packets, 1873984333 bytes
5 minute rate 331000 bps
Match: protocol rtcp
126490 packets, 19910003 bytes
5 minute rate 2000 bps
Match: precedence 5
7181406 packets, 699404911 bytes
5 minute rate 64000 bps
Match: ip dscp ef (46)
0 packets, 0 bytes
5 minute rate 0 bps
Match: dscp ef (46)
0 packets, 0 bytes
5 minute rate 0 bps
Match: protocol icmp
1225057 packets, 107369208 bytes
5 minute rate 23000 bps
QoS Set
dscp ef
12-22-2011 02:24 AM
Hi!
I notify my mistake
Match: precedence 5 this class was the first for ICMP DSCP EF
Thanks and excuse me !
Regards,
12-22-2011 02:44 AM
Hi,
so are the outputs from previous post correct ?
Do you have a device between the source and the router where you classify?
How did you make the pings have the correct Qos setting ?
Regards.
Alain
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