3550 marking verification doubt

From: Daniel Berlinski (Daniel.Berlinski@telecom.co.nz)
Date: Tue Nov 15 2005 - 18:25:23 GMT-3


Still on this Marking issue. Please someone have a look and let me know if I'm testing/configuring this correctly:
 
Trying to mark ICMP packets from VLAN12 with precedence 5 e other traffic with precedence 3.
 
Now I have the policy map applied on a trunk port. Scenario is:
SW1 (Root bridge for VLAN 12) --- TRUNK --- SW2 (Root port is fa0/13 for VLAN 12)
 
The configs are as follows:
 
SW2:
 
mls qos
 
access-list 170 permit icmp any any echo
access-list 170 permit icmp any any echo-reply
 
class-map match-any ICMP
  match access-group 170
class-map match-all VLAN12
  match vlan 12
  match class-map ICMP
 
policy-map MARKING
  class VLAN12
    set ip precedence 5
 
interface FastEthernet0/13
 switchport mode dynamic desirable
 mls qos cos 3
 service-policy input MARKING
 
interface Vlan12
 ip address 20.20.12.8 255.255.255.0
 
 
SW1:
 
mls qos
 
interface FastEthernet0/13
 switchport mode dynamic desirable
  mls qos trust cos
 
interface Vlan12
 ip address 20.20.12.7 255.255.255.0
 
SVI vlan 12 is being used for testing.
 
Checking method:
Created a VLAN access-map on SW1 as follows:
 
vlan access-map MARKING 10
 action forward
 match ip address 150
 
vlan filter MARKING vlan-list 12
 
access-list 150 permit icmp any any echo precedence critical
access-list 150 permit icmp any any echo-reply precedence critical
access-list 150 permit ip any any

 
I'm pinging 20.20.12.7 from SW2. All echoes area sourced using SVI VLAN12 of SW2 (20.20.12.8).
Rack1SW2#ping
Protocol [ip]:
Target IP address: 20.20.12.7
Repeat count [5]: 1000000
Datagram size [100]:
Timeout in seconds [2]: 1
Extended commands [n]: y
Source address or interface: vlan12
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]:
 
On SW1 I only see the following
Rack1SW1(config-ext-nacl)#do sh ip access-list 150
Extended IP access list 150
    permit icmp any any echo precedence critical
    permit icmp any any echo-reply precedence critical
    permit ip any any
 
What am I missing?
Thanks
 
 
 
 
 

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