QOS Question

From: Kamal Dissanayaka (kamalasiri@gmail.com)
Date: Tue Jun 19 2007 - 20:47:04 ART


Dear all,

Can somebody expalin me about bellow two class-map configs need to perform
same or different functions ? Policy-map is applied on on egress of a WAN
link.

1. class-map match-any MM-LOW
 match ip dscp af41
 match ip dscp cs4
 match ip dscp af42
 match ip dscp cs6

With this config there is no matches on this class map and all goes through
default-class see the out put bellow , I get confirmed with access list
there are packets comming with dscp cs6.

Class-map: MM-LOW (match-any)
          0 packets, 0 bytes
          30 second offered rate 0 bps, drop rate 0 bps
          Match: ip dscp af41 (34)
            0 packets, 0 bytes
            30 second rate 0 bps
          Match: ip dscp cs4 (32)
            0 packets, 0 bytes
            30 second rate 0 bps
          Match: ip dscp af42 (36)
            0 packets, 0 bytes
            30 second rate 0 bps
          Match: ip dscp cs6 (48)
            0 packets, 0 bytes
            30 second rate 0 bps
          Queueing
            Output Queue: Conversation 137
            Bandwidth remaining 40 (%)Max Threshold 64 (packets)
            (pkts matched/bytes matched) 0/0
        (depth/total drops/no-buffer drops) 0/0/0

2. class-map match-any MM-LOW
 match ip dscp cs4 af41 af42 cs6

When I configure the class-map in this way it matches the packet. see the
out put bellow,

Class-map: MM-LOW (match-any)
          187 packets, 168760 bytes
          30 second offered rate 22000 bps, drop rate 0 bps
          Match: ip dscp cs4 (32) af41 (34) af42 (36) cs6 (48)
            0 packets, 0 bytes
            30 second rate 0 bps
          Queueing
            Output Queue: Conversation 137
            Bandwidth remaining 40 (%)Max Threshold 64 (packets)
            (pkts matched/bytes matched) 0/0
        (depth/total drops/no-buffer drops) 0/0/0

Best Regards

Kamal



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