why i cannot use MQC on Catatlyst 3750 or 3560 !!!!???

sirisakch · ‎11-20-2008

it's just a common qos configuration but it doesn't work, please see the detail below.

(but i use the same configuration on 2811,

it works well)

mls qos

!

class-map match-all IN_NGN_Mgt

match access-group name IN_NGN_Mgt

class-map match-all NGNSig_PSTN

match access-group name NGNSig_PSTN

!

policy-map test

policy-map mark-dscp

class NGNSig_PSTN

set dscp ef

class IN_NGN_Mgt

set dscp af21

class class-default

set dscp default

!

interface GigabitEthernet1/0/10

switchport access vlan 12

switchport mode access

switchport nonegotiate

service-policy input mark-dscp

speed 100

duplex full

!

interface Vlan12

ip address 192.168.4.126 255.255.255.128

!

ip access-list extended IN_NGN_Mgt

permit ip 192.168.6.0 0.0.0.255 any

permit ip 192.168.4.0 0.0.0.127 any

ip access-list extended NGNSig_PSTN

permit ip 192.168.5.0 0.0.0.127 any

permit ip 192.168.4.200 0.0.0.7 any

permit ip 192.168.4.128 0.0.0.15 any

!!!!!

lks_hwngn_02#sh policy-map int g1/0/10

GigabitEthernet1/0/10

Service-policy input: mark-dscp

Class-map: NGNSig_PSTN (match-all)

0 packets, 0 bytes

offered rate 0 bps, drop rate 0 bps

Match: access-group name NGNSig_PSTN

Class-map: IN_NGN_Mgt (match-all)

0 packets, 0 bytes

offered rate 0 bps, drop rate 0 bps

Match: access-group name IN_NGN_Mgt

Class-map: class-default (match-any)

0 packets, 0 bytes

offered rate 0 bps, drop rate 0 bps

Match: any

0 packets, 0 bytes

rate 0 bps

Joseph W. Doherty · ‎11-20-2008

A 3560/3750 is a L3 switch, not a router like the 2811. Many of the latter's features are not supported on former.

In this instance, the inbound marking policy might actually work athough the 3560/3750 won't show you the stats with a show policy. You'll need, I recall, to use some variation of, or something like, "show mls qos stats".

allan.thomas · ‎11-20-2008

In additional to the good information from Joesph, although the interface command appears in the command line, it is in fact not supported.

Take a look at the 'show policy-map' with the command guide:-

http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/software/release/12.2_44_se/command/reference/cli2.html#wp1948343

The command 'show mls qos interface statistics' will indicate both incoming and outgoing statistics for both CoS and DSCP.

Hope this helps.

Allan.

Pls rate helpful posts.

sirisakch · ‎11-20-2008

Thank you so much for your reply.

I just wanna tell you that it's worked for vlan-base.

Anyway for MQC, there's nothing marked (af21).

Please see below for "show mls qos int stat"

GigabitEthernet1/0/10

dscp: incoming

-------------------------------

0 - 4 : 19988966 0 0 0 0

5 - 9 : 0 1 0 0 0

10 - 14 : 0 0 0 0 0

15 - 19 : 0 0 0 0 0

20 - 24 : 0 0 0 0 0

25 - 29 : 0 0 0 0 0

30 - 34 : 0 0 0 0 0

35 - 39 : 0 0 0 0 0

40 - 44 : 0 0 0 0 0

45 - 49 : 0 30 0 0 0

50 - 54 : 0 0 0 0 0

55 - 59 : 0 0 0 0 0

60 - 64 : 0 0 0 0

dscp: outgoing

-------------------------------

0 - 4 : 1324636 0 0 0 0

5 - 9 : 0 0 0 0 0

10 - 14 : 0 0 0 0 0

15 - 19 : 0 0 0 0 0

20 - 24 : 0 0 0 0 0

25 - 29 : 0 0 0 0 0

30 - 34 : 0 0 0 0 0

35 - 39 : 0 0 0 0 0

40 - 44 : 0 0 0 0 0

45 - 49 : 0 0 0 0 0

50 - 54 : 0 0 0 0 0

55 - 59 : 0 0 0 0 0

60 - 64 : 0 0 0 0

cos: incoming

-------------------------------

0 - 4 : 19996349 0 0 0 0

5 - 7 : 0 0 0

cos: outgoing

-------------------------------

0 - 4 : 1324797 0 0 0 0

5 - 7 : 0 0 89

Policer: Inprofile: 0 OutofProfile: 0