Allied Telesis AR400 User Manual

C613-16087-00 REV Cwww.alliedtelesis.comAlliedWare™ OSHow To |IntroductionAllied Telesis routers and managed layer 3 switches use IGMP—Internet Group

Page 10 | AlliedWare™ OS How To Note: IGMPIGMP snooping > ExampleSwitch 1 is configured with IGMP, which makes it the IGMP Querier in this netw

Page 100 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > Controlling which addresses create All Groups en

Page 101 | AlliedWare™ OS How To Note: IGMPStatically specifying that a port is a router port > ExampleStatically specifying that a port is a r

Page 102 | AlliedWare™ OS How To Note: IGMPStatically specifying that a port is a router port > Example3. Statically add port 6 as a router por

Page 103 | AlliedWare™ OS How To Note: IGMPIGMP debugging > ExampleIGMP debuggingIn this section, we shall examine the debugging messages that

Page 104 | AlliedWare™ OS How To Note: IGMPIGMP debugging > ExampleClient 2 sends a Leave message for group 224.12.13.14. Switch 1 sees the Lea

Page 105 | AlliedWare™ OS How To Note: IGMPIGMP debugging > ExampleClient 2 sends a Membership Report for group 224.12.13.14. Switch 1 sees the

Page 106 | AlliedWare™ OS How To Note: IGMPIGMP debugging > ExampleThis example also shows what debugging output looks like when the Snooper re

Page 107 | AlliedWare™ OS How To Note: IGMPIGMP debugging > ExampleWhen IGMP debugging is enabled, the command show ip igmp gives more informat

Page 108 | AlliedWare™ OS How To Note: IGMPAppendix: STP state > Switch 1Appendix: STP stateIn most of the examples in this document, the switc

Page 109 | AlliedWare™ OS How To Note: IGMPAppendix: STP state > Switch 2Switch 2Manager Switch 2> show stp=default port=25-26 STP Port Info

Page 11 | AlliedWare™ OS How To Note: IGMPIGMP snooping > Explanation of IGMP snoopingExplanation of IGMP snoopingThis section steps through th

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Page 12 | AlliedWare™ OS How To Note: IGMPIGMP snooping > Explanation of IGMP snoopingUsing Show command output to investigate IGMP stateNo gro

Page 13 | AlliedWare™ OS How To Note: IGMPIGMP snooping > Explanation of IGMP snoopingThis output now shows two entries, one for each of the fo

Page 14 | AlliedWare™ OS How To Note: IGMPIGMP snooping > Explanation of IGMP snoopingFinally, look at the output of the command show igmpsnoop

Page 15 | AlliedWare™ OS How To Note: IGMPMultiple potential IGMP queriers > ExampleMultiple potential IGMP queriersTo find out more about IGMP

Page 16 | AlliedWare™ OS How To Note: IGMPMultiple potential IGMP queriers > ExampleSwitch 1 is a potential IGMP Querier. It acts as a Snooper

Page 17 | AlliedWare™ OS How To Note: IGMPMultiple potential IGMP queriers > Explanation of Multiple potential IGMP queriersExplanation of Mult

Page 18 | AlliedWare™ OS How To Note: IGMPMultiple potential IGMP queriers > Explanation of Multiple potential IGMP queriersWhen a client joins

Page 19 | AlliedWare™ OS How To Note: IGMPMultiple potential IGMP queriers > Explanation of Multiple potential IGMP queriersTo see the differen

Page 2 | AlliedWare™ OS How To Note: IGMPIntroduction > ContentsMultiple potential IGMP queriers ...

Page 20 | AlliedWare™ OS How To Note: IGMPMultiple potential IGMP queriers > Explanation of Multiple potential IGMP queriersAlso, note that (DR

Page 21 | AlliedWare™ OS How To Note: IGMPIGMP proxy > ExampleIGMP proxyIn very simple tree-design networks, IGMP Proxy is a useful simple alte

Page 22 | AlliedWare™ OS How To Note: IGMPIGMP proxy > ExampleSwitch 1—the closest switch to the multicast source—is an IGMP Querier.Switch 2 i

Page 23 | AlliedWare™ OS How To Note: IGMPIGMP proxy > Explanation of IGMP proxyExplanation of IGMP proxyWhen there are no group membersThe mul

Page 24 | AlliedWare™ OS How To Note: IGMPIGMP proxy > Explanation of IGMP proxythrough vlan200. Output of the commands show ip igmp and show i

Page 25 | AlliedWare™ OS How To Note: IGMPIGMP proxy > Explanation of IGMP proxySwitch 1 receives the proxied report from switch 3. Switch 1 no

Page 26 | AlliedWare™ OS How To Note: IGMPQuery solicitation (rapid recovery from topology changes) > How query solicitation worksQuery solicit

Page 27 | AlliedWare™ OS How To Note: IGMPQuery solicitation (rapid recovery from topology changes) > How query solicitation worksThe following

Page 28 | AlliedWare™ OS How To Note: IGMPQuery solicitation (rapid recovery from topology changes) > Why convergence takes so long without que

Page 29 | AlliedWare™ OS How To Note: IGMPQuery solicitation (rapid recovery from topology changes) > Why convergence takes so long without que

Page 3 | AlliedWare™ OS How To Note: IGMPIntroduction > Products and software versions this note applies toStopping snoopers from snooping non-

Page 30 | AlliedWare™ OS How To Note: IGMPQuery solicitation (rapid recovery from topology changes) > Why convergence takes so long without que

Page 31 | AlliedWare™ OS How To Note: IGMPQuery solicitation (rapid recovery from topology changes) > Why convergence takes so long without que

Page 32 | AlliedWare™ OS How To Note: IGMPQuery solicitation (rapid recovery from topology changes) > Why convergence takes so long without que

Page 33 | AlliedWare™ OS How To Note: IGMPQuery solicitation (rapid recovery from topology changes) > Speeding up IGMP convergence in a non-loo

Page 34 | AlliedWare™ OS How To Note: IGMPQuery solicitation (rapid recovery from topology changes) > Enabling query solicitation on multiple s

Page 35 | AlliedWare™ OS How To Note: IGMPIGMP filtering (controlling multicast distribution) > ExampleIGMP filtering (controlling multicast di

Page 36 | AlliedWare™ OS How To Note: IGMPIGMP filtering (controlling multicast distribution) > ExampleSwitch 1—the closest switch to the multi

Page 37 | AlliedWare™ OS How To Note: IGMPIGMP filtering (controlling multicast distribution) > ExampleSwitch 2 is an IGMP Snooper. IGMP snoopi

Page 38 | AlliedWare™ OS How To Note: IGMPIGMP filtering (controlling multicast distribution) > Explanation of IGMP filtering (controlling mult

Page 39 | AlliedWare™ OS How To Note: IGMPIGMP filtering (controlling multicast distribution) > Explanation of IGMP filtering (controlling mult

Page 4 | AlliedWare™ OS How To Note: IGMPIntroduction > Products and software versions this note applies toThe following table shows the softwa

Page 40 | AlliedWare™ OS How To Note: IGMPIGMP throttling (limiting the number of streams for each subscriber) > ExampleIGMP throttling (limiti

Page 41 | AlliedWare™ OS How To Note: IGMPIGMP throttling (limiting the number of streams for each subscriber) > ExampleSwitch 1 is an IGMP Que

Page 42 | AlliedWare™ OS How To Note: IGMPIGMP throttling (limiting the number of streams for each subscriber) > ExampleSwitch 3 is also an IGM

Page 43 | AlliedWare™ OS How To Note: IGMPIGMP throttling (limiting the number of streams for each subscriber) > Explanation of IGMP throttling

Page 44 | AlliedWare™ OS How To Note: IGMPIGMP throttling (limiting the number of streams for each subscriber) > Explanation of IGMP throttling

Page 45 | AlliedWare™ OS How To Note: IGMPIGMP throttling (limiting the number of streams for each subscriber) > Explanation of IGMP throttling

Page 46 | AlliedWare™ OS How To Note: IGMPIGMP throttling (limiting the number of streams for each subscriber) > Explanation of IGMP throttling

Page 47 | AlliedWare™ OS How To Note: IGMPIGMP throttling (limiting the number of streams for each subscriber) > Explanation of IGMP throttling

Page 48 | AlliedWare™ OS How To Note: IGMPStatic IGMP > ExampleStatic IGMPStatic IGMP enables you to configure a switch with specified group-to

Page 49 | AlliedWare™ OS How To Note: IGMPStatic IGMP > ExampleSwitch 1 is an IGMP Querier and has the static IGMP entry. Static IGMP also requ

Page 5 | AlliedWare™ OS How To Note: IGMPIGMP overview > Queriers and SnoopersIGMP overviewClients in an IP subnetwork use IGMP to indicate tha

Page 50 | AlliedWare™ OS How To Note: IGMPStatic IGMP > ExampleSwitch 3 is also an IGMP Snooper. Later in this example, we will add a static IG

Page 51 | AlliedWare™ OS How To Note: IGMPStatic IGMP > Explanation of Static IGMPExplanation of Static IGMPWhen the IGMP static entry is creat

Page 52 | AlliedWare™ OS How To Note: IGMPStatic IGMP > Explanation of Static IGMPWhen the group 224.12.13.14 starts streaming into switch 1, w

Page 53 | AlliedWare™ OS How To Note: IGMPStatic IGMP > Explanation of Static IGMPTo see the effect that the new configuration has on switch 1,

Page 54 | AlliedWare™ OS How To Note: IGMPStatic IGMP > Explanation of Static IGMPWe can see the static entry on switch 3 by checking the IGMP

Page 55 | AlliedWare™ OS How To Note: IGMPStatic IGMP > Explanation of Static IGMPTo see the new static entry, we use the commands show igmpsno

Page 56 | AlliedWare™ OS How To Note: IGMPStatic IGMP > Explanation of Static IGMPManager Switch 3> show switch port=5,26 counter Switch Por

Page 57 | AlliedWare™ OS How To Note: IGMPStatic IGMP > Explanation of Static IGMPWhen a static entry’s port goes downFinally, note that when t

Page 58 | AlliedWare™ OS How To Note: IGMPHow clients leave groups: queries and timers > Overview of leave processHow clients leave groups: que

Page 59 | AlliedWare™ OS How To Note: IGMPHow clients leave groups: queries and timers > Snooper timer valuesThe command show ip igmp displays

Page 6 | AlliedWare™ OS How To Note: IGMPIGMP overview > MessagesThe key differences between a network’s Querier and its Snoopers are:z The Que

Page 60 | AlliedWare™ OS How To Note: IGMPHow clients leave groups: queries and timers > Comparing the Querier and Snooper timersz To calculate

Page 61 | AlliedWare™ OS How To Note: IGMPIGMP fast leave > ExampleIGMP fast leaveIGMP Fast Leave enhances your control over router or switch b

Page 62 | AlliedWare™ OS How To Note: IGMPIGMP fast leave > ExampleSwitch 1 is an IGMP Querier.Switch 2 is an IGMP Snooper. IGMP snooping is en

Page 63 | AlliedWare™ OS How To Note: IGMPIGMP fast leave > Explanation of IGMP fast leaveExplanation of IGMP fast leaveImagine that client 2 o

Page 64 | AlliedWare™ OS How To Note: IGMPIGMP fast leave > Explanation of IGMP fast leaveWhen fast leave is disabledThe IGMP Snooper sees the

Page 65 | AlliedWare™ OS How To Note: IGMPIGMP fast leave > Explanation of IGMP fast leaveWhen you enable fast leave on switch 3When Fast Leave

Page 66 | AlliedWare™ OS How To Note: IGMPIGMP fast leave > Explanation of IGMP fast leaveWhen you set fast leave on all interfacesFast leave i

Page 67 | AlliedWare™ OS How To Note: IGMPIGMP fast leave > Explanation of IGMP fast leaveMultiple host mode for fast leaveThe previous discuss

Page 68 | AlliedWare™ OS How To Note: IGMPIGMP fast leave > Explanation of IGMP fast leaveYou can see the list of hosts for each port by enteri

Page 69 | AlliedWare™ OS How To Note: IGMPConfigurable IGMP timers and counters > Timer and counter relationshipsConfigurable IGMP timers and c

Page 7 | AlliedWare™ OS How To Note: IGMPIGMP overview > Choosing group addressesChoosing group addressesThis section describes things you need

Page 70 | AlliedWare™ OS How To Note: IGMPConfigurable IGMP timers and counters > Software versionsSoftware versionsSince software versions 281

Page 71 | AlliedWare™ OS How To Note: IGMPConfigurable IGMP timers and counters > Initial configurationSwitch 1 is an IGMP Querier.Switch 2 is

Page 72 | AlliedWare™ OS How To Note: IGMPConfigurable IGMP timers and counters > Default valuesDefault valuesOutput of the command show ip igm

Page 73 | AlliedWare™ OS How To Note: IGMPConfigurable IGMP timers and counters > Last Member Query Count and Last Member Query IntervalPotenti

Page 74 | AlliedWare™ OS How To Note: IGMPConfigurable IGMP timers and counters > Last Member Query Count and Last Member Query IntervalSimilar

Page 75 | AlliedWare™ OS How To Note: IGMPConfigurable IGMP timers and counters > Robustness VariableRobustness VariableWhat this counter doesT

Page 76 | AlliedWare™ OS How To Note: IGMPConfigurable IGMP timers and counters > Default Query IntervalDefault Query IntervalWhat this timer d

Page 77 | AlliedWare™ OS How To Note: IGMPConfigurable IGMP timers and counters > Query Response IntervalQuery Response IntervalWhat this timer

Page 78 | AlliedWare™ OS How To Note: IGMPConfigurable IGMP timers and counters > Default Timeout IntervalDefault Timeout IntervalThe Default T

Page 79 | AlliedWare™ OS How To Note: IGMPConfigurable IGMP timers and counters > Default Timeout IntervalDefaults First, the following output

Page 8 | AlliedWare™ OS How To Note: IGMPIGMP overview > Choosing group addressesAvoid x.0.0.y, x.0.1.y, x.128.0.y, and x.128.1.yIt is particul

Page 80 | AlliedWare™ OS How To Note: IGMPConfigurable IGMP timers and counters > Default Timeout IntervalIncreaseQueryResponseIntervalNext, ch

Page 81 | AlliedWare™ OS How To Note: IGMPConfigurable IGMP timers and counters > Default Timeout IntervalOverrideDefaultTimeoutIntervalTo supp

Page 82 | AlliedWare™ OS How To Note: IGMPConfigurable IGMP timers and counters > Default Timeout IntervalEarliersoftwareversionsWith software

Page 83 | AlliedWare™ OS How To Note: IGMPExample of bad choices for timer values > ExampleExample of bad choices for timer valuesIt is general

Page 84 | AlliedWare™ OS How To Note: IGMPExample of bad choices for timer values > Problem 1: Last Member Query Interval too shortProblem 1: L

Page 85 | AlliedWare™ OS How To Note: IGMPExample of bad choices for timer values > Problem 3: Default Timeout Interval too shortNote that the

Page 86 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > ExampleStopping snoopers from snooping non-IGMP m

Page 87 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > ExampleSwitch 1 is an IGMP Querier.Switch 2 is an

Page 88 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > ExampleThe router uses OSPF.With the above config

Page 89 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > ExampleManager Switch 3> show igmpsnoopingIGMP

Page 9 | AlliedWare™ OS How To Note: IGMPIGMP snooping > ExampleIGMP snoopingIn this example, we discuss IGMP snooping, the key to efficient mu

Page 90 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > Preventing an All Groups entry for a portPreventi

Page 91 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > Preventing an All Groups entry for a portEnabling

Page 92 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > Preventing an All Groups entry for a port4. Displ

Page 93 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > Preventing an All Groups entry for a port6. Enabl

Page 94 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > Preventing an All Groups entry for a port9. Displ

Page 95 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > Controlling which addresses create All Groups ent

Page 96 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > Controlling which addresses create All Groups ent

Page 97 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > Controlling which addresses create All Groups ent

Page 98 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > Controlling which addresses create All Groups ent

Page 99 | AlliedWare™ OS How To Note: IGMPStopping snoopers from snooping non-IGMP messages > Controlling which addresses create All Groups ent