Understanding CoS-Based Packet Statistics

Chapter 11 Configuring Quality of Service on the ML-Series Card

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 11-6shows the types of statistics available at specific interfaces.

Table 11-6	Packet Statistics on ML-Series Card Interfaces

		Fast Ethernet	Fast Ethernet	POS	POS
Statistics Collected		Interface	Subinterface (VLAN)	Interface	Subinterface

Input—Packets and Bytes		Yes	Yes	No	No

Output—Packets and Bytes		Yes	Yes	No	No

Drop Count—Packets and		Yes	No	Yes	No
Bytes1

1. Drop counts only include discards caused by output congestion and are counted at the output interface.

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).

	Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration Guide R8.5
11-28	78-18133-01

15310-CL, 15310-MA specifications

Cisco Systems has established itself as a leader in the networking domain, offering a wide array of solutions to meet the needs of modern businesses. Among its impressive product lineup are the Cisco 15310-CL and 15310-MA routers, designed to provide advanced network performance and reliability.

The Cisco 15310-CL is a versatile platform that primarily serves as a carrier-class router aimed at supporting high-speed data and voice services. It is built to handle the demands of large enterprises and service providers, offering a robust design that ensures maximum uptime and performance. One of its standout features is its modular architecture, which enables users to customize their configurations based on specific application needs. This scalability allows for future expansion without the need for a complete hardware overhaul.

Key technologies integrated into the Cisco 15310-CL include high-density Ethernet interfaces and a comprehensive suite of Layer 2 and Layer 3 protocol support. The device is capable of supporting multiple types of connections, including TDM, ATM, and Ethernet. This flexibility makes it an ideal choice for organizations that require seamless migration between various service types. Moreover, with features such as MPLS (Multiprotocol Label Switching) support and advanced Quality of Service (QoS) mechanisms, the router ensures that critical applications receive the necessary bandwidth and low latency required for optimal performance.

In contrast, the Cisco 15310-MA focuses on access solutions, providing a cost-effective entry point for businesses looking to enhance their network capabilities. It is well-suited for smaller offices or branch locations that need reliable connectivity without the expense and complexity associated with larger systems. The device supports a range of access methods and provides essential features like firewall capabilities, VPN support, and comprehensive security measures to protect sensitive data.

Both models benefit from Cisco's commitment to security and manageability, offering features like enhanced encryption protocols and user authentication mechanisms that help safeguard networks against threats. Additionally, they can be managed through Cisco’s intuitive software tools, simplifying configuration and monitoring tasks for IT administrators.

The Cisco 15310-CL and 15310-MA are ideal solutions for businesses seeking to enhance their network infrastructure, ensuring firms can keep pace with evolving technology demands while maintaining a focus on security and performance. Their combination of advanced features, modular capabilities, and robust support makes them valuable assets in the networking landscape.

Cisco Systems 15310-MA, 15310-CL Understanding CoS-Based Packet Statistics, Fast Ethernet, 11-28

Models: 15310-CL 15310-MA

bandwidth 1000

Understanding CoS-Based Packet Statistics

Packet Statistics on ML-Series Card Interfaces

Fast Ethernet

POS

Statistics Collected

Interface

Subinterface (VLAN)

11-28

15310-CL, 15310-MA specifications