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.
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