Cisco ASR 9000 Series Налаштування мережевих параметрів - Сторінка 7

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Configuring the Satellite Network Virtualization (nV) System on the Cisco ASR 9000 Series Router

Quality of Service

Most Layer-2, Layer-3 QoS and ACL features are supported on Satellite Ethernet interfaces that are

similar to normal physical Ethernet interfaces, with the exception of any ingress policy with a queueing

action. However, for QoS, there may be some functional differences in the behavior because in the

Cisco IOS XR Software Release 4.2.1, user-configured MQC policies are applied on the

Cisco ASR 9000 Series Router, and not on the satellite switch interfaces. For more detailed information

on QoS policy attributes, features, and their configuration, see Cisco ASR 9000 Series Aggregation

Services Router Modular Quality of Service Configuration Guide.

User-configured QoS policies are independent of any default port level QoS that are applied in order to

Note

handle IC link congestion and oversubscription scenarios. In addition to the default port-level QoS

applied on the satellite system ports, there is also some default QoS applied on the

Cisco ASR 9000 Series Router side, to the ingress and egress traffic from and to the Satellite Ethernet

ports.

Cluster Support

A cluster of Cisco ASR 9000 Series Routers is supported along with the satellite mode. A single cluster

system can act like one logical Cisco ASR 9000 Series Router host system for a group of satellite

switches. A satellite switch can also have some ICLs connect to rack 0 and other ICLs connect to rack

1 of a cluster system. For more information, see Configuring the nV Edge System on the Cisco ASR 9000

Series Router chapter.

Note

The Satellite Ethernet interfaces cannot be used as cluster inter-rack links.

Time of Day Synchronization

The Time of Day parameter on the satellite switch is synchronized with the time of day on the host. This

ensures that time stamps on debug messages and other satellite event logs are consistent with the host,

and with all satellite switches across the network. This is achieved through the SDAC Discovery Protocol

from the host to the satellite switch when the ICLs are discovered.

Satellite Chassis Management

The chassis level management of the satellite is done through the host because the satellite switch is a

logical portion of the overall virtual switch. This ensures that service providers get to manage a single

logical device with respect to all aspects including service-level, as well as box-level management. This

simplifies the network operations. These operations include inventory management, environmental

sensor monitoring, and fault/alarm monitoring for the satellite chassis through the corresponding CLI,

SNMP, and XML interfaces of the host Cisco ASR 9000 Series Router.

The satellite system hardware features, support for SFPs, and compatible topologies are described in the

Note

Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide.

Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide

OL-26061-03

Overview of Port Extender Model

HC-713