Hi all,
I have a problem with output drops on an ME3600X (15.3(3)S2). I believe a have too many output drops with no apparent excuse. For example, i have a customer connected on an interface (Full-duplex, 100Mb/s) on which I have applied a hierarchical policy that shapes traffic at 40Mbps and at the same time increases queue-limit at 512000bytes.
The traffic on the interface right now is a low 620Kbps, I reset the counters and in a few minutes I have 59packets dropped. This is just an example.
Is this behaviour normal? Can someone explain to me why on earth it's dropping packets at such a low rate?
One more question: Is the size of the queue shared between all interfaces? What is the suggested way to configure an interface with say 800Mbps of output traffic?
Thank you,
Spiros
interface GigabitEthernet0/8
description customer
switchport access vlan xxx
mtu 9000
no cdp enable
no lldp transmit
service-policy output pmaproot-cust-out
sw#sh policy-map interface gi0/8
GigabitEthernet0/8
Service-policy output: pmaproot-cust-out
Class-map: class-default (match-any)
172851 packets, 83280396 bytes
5 minute offered rate 620000 bps, drop rate 0000 bps
Match: any
Service-policy : pmapvlan-cust
Class-map: class-default (match-any)
172851 packets, 83280396 bytes
5 minute offered rate 620000 bps, drop rate 0000 bps
Match: any
Service-policy : pmap-cust-out
Class-map: class-default (match-any)
172851 packets, 83280396 bytes
5 minute offered rate 620000 bps, drop rate 0000 bps
Match: any
Traffic Shaping
Average Rate Traffic Shaping
Shape 40000 (kbps)
Queue-limit 512000 bytes
Queue-limit current-queue-depth 0 bytes
Output Queue:
Default Queue-limit 49152 bytes
Tail Packets Drop: 59
Tail Bytes Drop: 88877
