Nortel 5530 Engineering Manual

Also see for 5510: Installation Configuration Specifications

Contents

Filters and QoS Configuration for ERS 5500Technical Configuration Guide v2.0 NN48500-559___________________________________________________________________________________________________________________________Nortel Confidential Information Copyright © 2008 Nortel Networks. All Rights Reserved.External Distribution 61. Overview: Ethernet Routing Switch 5500QoS and FilteringThe Ethernet Routing Switch 5500 supports QoS and filter configuration via WEB, CLI, andDevice Manager with no support for COPS at this time. As shown in the diagram below, thefollowing functional components provide QoS support on the Ethernet Routing Switch 5500:• Role Combination on the ingress port• Classify traffic at either Layer 2 or at a Layer 3/4 level• Take action by dropping, marking, redirecting, or metering (policing) traffic• Send traffic to appropriate egress queueFigure 1: QoS System DiagramRole CombinationA role combination is a grouping of one or more ports, capabilities, and interface classificationsagainst which a policy is applied. The capabilities presently supported on the Ethernet RoutingSwitch 5500 include ingress IP and Layer 2 classification. The Ethernet Routing Switch 5500supports the following interface classes that can be applied to zero, one, or many interfaces:• Trusted Portso Assumes that all traffic coming into the port is originating from a trusted source.Therefore, the DSCP field of any traffic that enters the Ethernet Routing Switch 5500from a Trusted Port is not remarked by default. However, a policy can still be appliedto a trusted port to remark if required. Note that only the 802.1p user priority valueassociated with ‘well-known’ DSCP values are remapped by the default trustedPortClassifierMeterMarkerDropperQueueRedirectorActionsCounters / StatisticsRole Combinations(ingress port group)EgressportsPortPortPortQueueQueueQueue