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 15• If you are using (the AppleTalk Filing Protocol) AFP, use large or maximum resourcesharing (AFP use a fix windows size set to 65,535K).You should use the large resourcesharing setting:• If you are using your 5520 for high bandwidth application such as video.• If you are using large TCP windows for your traffic, use large resource sharing (you canalso reduce the TCP windows size on windows operating system - see Microsoft TechNetarticle 224829).• If you have 4 or fewer ports connected per group of 12 ports.You should use the Regular resource sharing setting:• If you are using your 5520 in a VOIP environment.• If you have 5 or more ports connected per group of 12 ports.Egress CoS QueuingThe following charts describe each possible egress CoS queuing setting. The mapping of 802.1ppriority to egress CoS queue, dequeuing algorithm, and queue weight is given. Additionally, thememory and maximum number of packets which can be buffered per egress CoS queue andresource sharing settings is shown.Table 5: Ethernet Routing Switch 5500 Egress CoS QueuingSetting InternalPriorityEgressCoSQueueDequeuingAlgorithm WeightRegularMemory/# of 1518BytePacketsLargeMemory/ #of 1518BytePacketsMaxMemory/ #of 1518BytePackets36864B 49152B 131072B7 1 Strict 100% 24 32 8636864B 47104B 123392B6 2 41% 24 31 8127648B 45056B 115712B5 3 19% 18 29 7618432B 43008B 108032B4 4 13% 12 28 7118432B 39936B 97792B3 5 11% 12 26 6418432B 36864B 85504B2 6 8% 12 24 5618432B 33792B 70656B1 7 5% 12 22 4618432B 30720B 54272B8 CoS0 8WeightedRound Robin3% 12 20 3536864B 49152B 144640B7 1 Strict 100% 24 32 9532768B 46080B 131840B6 2 45% 21 30 8626624B 39936B 120064B5 3 21% 17 26 7919968B 33280B 109824B7 CoS4 4WeightedRound Robin15% 13 21 72