Allied Telesisメーカーx900-48 seriesの使用説明書/サービス説明書
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C613-16068-00 REV B www .alliedtelesis.com AlliedW ar e TM OS How T o | Intr oduction This document descri bes some generic configur ation examples for Quality of Service (QoS) on A T -9900 and x900 serie s switches running the AlliedW ar e OS.
Page 2 | AlliedW are™ OS Ho w T o Note: QoS co nfiguration 1 . Setting the egr ess rate 1 . Setting the egr ess rate Example 1 - 1 : Setting the egr ess limit of a switch por t Command: set switch port=24 egress limit=640 This command will set the egress limit of port 24 to 640kbps.
Page 3 | AlliedW are™ OS Ho w T o Note: QoS co nfiguration 1 . Setting the egr ess rate Example 1 -2: setting the maximum bandwid th limit per ingr ess por t Ingress rate limiting cannot be configur ed on the por t per se, but is achieved b y creating a QoS policy with a bandwidth limited traffic class, and applying that policy to each port.
Page 4 | AlliedW are™ OS Ho w T o Note: QoS co nfiguration 1 . Setting the egr ess rate Example 1 -3: Setting the maximum band width limit for each user In example 1 - 1 , we configured an egr e ss rate on por t s. But the granularity of that bandwidth limiting was multiples of 640kbps.
Page 5 | AlliedW are™ OS Ho w T o Note: QoS co nfiguration 1 . Setting the egr ess rate Example 1 -4: Setting the maximum bandwidth limit for each IP subnet This example is very sim ilar to example 1 -3, except that it is assu med that a whole subnet is attached to each por t, not just a single device on each port.
Page 6 | AlliedW are™ OS Ho w T o Note: QoS co nfiguration 1 . Setting the egr ess rate Example 1 -5: Setting the maximum ba ndwidth limit of VLANs Note: The por tgr oup feature is not supported before softwa r e release v2.7.5. If using an earlier softwar e release, use the port parameter on the policy instead.
Page 7 | AlliedW are™ OS Ho w T o Note: QoS co nfiguration 2. Setting the priority on a pack et 2. Setting the priority on a pack et Example 2- 1 : Setting the La y er 2 (VLAN/802. 1 p) priority per ingress port Here we assign differ ent 802. 1 p values to pack ets a rriving on diff erent ports.
Page 8 | AlliedW are™ OS Ho w T o Note: QoS co nfiguration 2. Setting the priority on a pack et Example 2-2: Setting the La y er 2 (VLAN/802. 1 p) priority per VLAN This set of commands will set the La yer 2 pr iority of VLAN2, VLAN3 and VLAN4 traffics pack ets, received on ports 1 to 20, to 6, 5 and 4 r espectivel y .
Page 9 | AlliedW are™ OS Ho w T o Note: QoS co nfiguration 2. Setting the priority on a pack et Example 2-3: Setting the La y er 3 (T OS/DCSP) priority per ingress port Use the same configu ration p.
Page 10 | AlliedW are™ OS Ho w T o Note: QoS configuration 3. Setting the egr ess queues 3. Setting the egr ess queues In this section we look at methods f or direct ing certain packets into certain queues on the egress port.
Page 11 | AlliedW are™ OS Ho w T o Note: QoS configuration 3. Setting the egr ess queues Example 3-2: Setting the egress qu eue according to the ingr ess port This set of commands will set the egress queue of an y traffic receiv ed from port 1 to egress queue 6, from port 2 to egress queue 5, etc .
Page 12 | AlliedW are™ OS Ho w T o Note: QoS configuration 3. Setting the egr ess queues Example 3-3: Configuring WRR for egr ess queues This example is used for configuring WRR on eg ress queues accor ding to the ingress port of the traffic.
Page 13 | AlliedW are™ OS Ho w T o Note: QoS configuration Full QoS scenario 1 : tier ed ser vices for a single customer Full QoS scenario 1 : tier ed ser vices f or a single customer In this sectio.
Page 14 | AlliedW are™ OS Ho w T o Note: QoS configuration Full QoS scenario 1 : tier ed ser vices for a single customer Bronz e traffic is also allow ed to burst up to the full egr ess bandwidth of.
Page 15 | AlliedW are™ OS Ho w T o Note: QoS configuration Full QoS scenario 1 : tier ed ser vices for a single customer The act of assigning packets in a particular traffic class to a par ticular egress queue is achiev ed in the pre-marking process.
Page 16 | AlliedW are™ OS Ho w T o Note: QoS configuration Full QoS scenario 1 : tier ed ser vices for a single customer The Gold traffic must be strictly limited to 2Mbps This is achiev ed by confi.
Page 17 | AlliedW are™ OS Ho w T o Note: QoS configuration Full QoS scenario 1 : tier ed ser vices for a single customer RED cur ves—a r efresher Random Early Disc ard cur ve s are bandwidth clas .
Page 18 | AlliedW are™ OS Ho w T o Note: QoS configuration Full QoS scenario 2: bandwidth limiting of m ultiple customers Full QoS scenario 2: bandwidth limiting of multiple customers In this section, we will build up another r e lativel y complex QoS configuration to suppor t a differ ent scenario.
Page 19 | AlliedW are™ OS Ho w T o Note: QoS configuration Full QoS scenario 2: bandwidth limiting of m ultiple customers The configuration r equired to impose these bandwidth limits would be: Limit.
Page 20 | AlliedW are™ OS Ho w T o Note: QoS configuration Full QoS scenario 2: bandwidth limiting of m ultiple customers create qos traff=9 set qos traff=9 maxband=5 Mbps maxburst=10Kb dropbwc=yes .
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Allied Telesis x900-48 seriesをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはAllied Telesis x900-48 seriesの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Allied Telesis x900-48 seriesの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Allied Telesis x900-48 seriesで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Allied Telesis x900-48 seriesを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はAllied Telesis x900-48 seriesの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Allied Telesis x900-48 seriesに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちAllied Telesis x900-48 seriesデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。