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Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration Guide R8.5
78-18133-01
Chapter 11 Configuring Quality of Service on the ML-Series Card
Understanding CoS-Based Packet Statistics
policy-map policy_egress_bandwidth
class customer_core_traffic
bandwidth 1000
class customer_voice
priority 1000
class customer_data
bandwidth 3000
class class-default
bandwidth 5000
!
!
interface POS0
no ip address
crc 32
service-policy output policy_egress_bandwidth
!
Understanding CoS-Based Packet Statistics
Note For IEEE 802.1Q (QinQ) enabled interfaces, CoS accounting is based only on the CoS value of the outer
metro tag imposed by the service provider. The CoS value inside the packet sent by the customer network
is not considered for CoS accounting.
Enhanced performance monitoring displays per-CoS packet statistics on the ML-Series card interfaces
when CoS accounting is enabled. CoS-based traffic utilization is displayed at the Fast Ethernet interface
or subinterface (VLAN) level, or at the POS interface level. It is not displayed at the POS subinterface
level. RPR statistics are not available at the SPR interface level, but statistics are available for the
individual POS ports that make up the SPR interface. EtherChannel (port-channel) and BVI statistics are
available only at the member port level. Table 11-6 shows the types of statistics available at specific
interfaces.
CoS-based packet statistics are available through the Cisco IOS command-line interface (CLI) and
Simple Network Management Protocol (SNMP), using an extension of the CISCO-PORT-QOS MIB.
They are not available through Cisco Transport Controller (CTC).
Table 11-6 Packet Statistics on ML-Series Card Interfaces
Statistics Collected
Fast Ethernet
Interface
Fast Ethernet
Subinterface (VLAN)
POS
Interface
POS
Subinterface
Input—Packets and Bytes Yes Yes No No
Output—Packets and Bytes Yes Yes No No
Drop Count—Packets and
Bytes
1
1. Drop counts only include discards caused by output congestion and are counted at the output interface.
Yes No Yes No