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When we add a static entry on another switch, Modify switch 3 configuration – Allied Telesis AR400 User Manual

Page 52

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Page 52 | AlliedWare™ OS How To Note: IGMP

Static IGMP > Explanation of Static IGMP

When the group 224.12.13.14 starts streaming into switch 1, we can use the command show
switch port=5 counter
to watch the number of multicast packets sent on port 5 increase.
This means that the link is up and the static IGMP entry is working.

When we add a static entry on another switch

Now we add a static IGMP entry on port 5 of switch 3, by adding the commands below.

Both switches are potential IGMP Queriers and switch 3 becomes the Querier. This is
because we gave switch 3 a lower IP address (172.31.0.253) than switch 1 (173.31.0.254).

Manager Switch 1> show switch port=5 counter

Switch Port Counters

--------------------------------------------------------------------------

Port 5. Ethernet MAC counters:

Combined receive/transmit packets by size (octets) counters:

64 5502 512 - 1023 160356

65 - 127 153355 1024 - MaxPktSz 109314

128 - 255 110102

256 - 511 137200

General Counters:

Receive Transmit

Octets 0 Octets 341385876

Pkts 0 Pkts 675829

CRCErrors 0

MulticastPkts 0 MulticastPkts 675826

BroadcastPkts 0 BroadcastPkts 3

FlowCtrlFrms 0 FlowCtrlFrms 0

OversizePkts 0

Fragments 0

Jabbers 0

UpsupportOpcode 0

UndersizePkts 0

Collisions 0

LateCollisions 0

ExcessivCollsns 0

Miscellaneous Counters:

MAC TxErr 0

MAC RxErr 0

Drop Events 0

--------------------------------------------------------------------------

X

Modify switch 3 Configuration

set stp port=5 edgeport=yes

# IP configuration

enable ip

add ip int=vlan100 ip=172.31.0.253 mask=255.255.255.0

enable ip igmp

enable ip igmp int=vlan100

create ip igmp destination=224.12.13.14 int=vlan100 po=5

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