[c-nsp] QOS on ME3600 (service instance)

[CiscoNSP List]

Hi Everyone,

Ive configured a simple test to ensure egress shaping is working under a service instance (As you cannot apply service policy to vlan interface).

policy-map TEST_1MB   class class-default  shape average 98000  <- Actually set to 98kb for testing

interface GigabitEthernet0/3
...
 service instance 6 ethernet
  service-policy output TEST_1MB
  bridge-domain 6

interface Vlan6
 description p-t-p-link-to-1841-1
 ip vrf forwarding TEST3
 ip address 10.10.1.0 255.255.255.254
 no ip proxy-arp



It "appears" to work - i.e. with no policy applied:

#ping vrf TEST3 10.10.1.1 size 1500 df-bit repeat 100  <- This is to an 1841 connected to port Gig0/3 on the ME
Type escape sequence to abort.
Sending 100, 1500-byte ICMP Echos to 10.10.1.1, timeout is 2 seconds:
Packet sent with the DF bit set
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (100/100), round-trip min/avg/max = 1/2/4 ms

Same test, with policy-map applied to service instance:

ping vrf TEST3 10.10.1.1 size 1500 df-bit repeat 100
Packet sent with the DF bit set
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (100/100), round-trip min/avg/max = 1/118/128 ms

i.e. Latency increases, so I can only assume the shaping is working....I have tried reducing the shaping to 1000 (1kb), and see packet-loss...remove service-policy, and latency returns to normal, and no loss.

#sh ethernet service instance policy-map 
  GigabitEthernet0/3: EFP 6 

  Service-policy output: TEST_1MB

    Class-map: class-default (match-any)  
      100 packets, 151800 bytes
      30 second offered rate 0000 bps, drop rate 0000 bps
      Match: any 
  Traffic Shaping
    Average Rate Traffic Shaping
    Shape 98 (kbps)
      Output Queue: 
        Default Queue-limit 49152 bytes
        Tail Packets Drop: 0 
        Tail Bytes Drop: 0 

Is this a cosmetic bug, or is there another command that will show drops?

Cheers.