Monitor: Multicast - ZyXEL Communications GS1900-8 User Manual

13.1 Overview
This sect ion provides inform at ion for M ult ica st in M on it or.
Tradit ionally, I P packet s are t ransm it t ed in one of eit her t wo ways - Unicast ( 1 sender t o 1 recipient )
or Broadcast ( 1 sender t o everybody on t he net work) . Mult icast delivers I P packet s t o j ust a group
of host s on t he net work.
I GMP ( I nt ernet Group Managem ent Prot ocol) is a net work- layer prot ocol used t o est ablish
m em bership in an I Pv4 m ult icast group - it is not used t o carry user dat a. Refer t o RFC 1112, RFC
2236 and RFC 3376 for inform at ion on I GMP versions 1, 2 and 3 respect ively.
13.1.1 What You Can Do in this Chapter
• The I GM P screen (
13.2 IGMP
Use t his screen t o view Swit ch various m ult icast feat ures.
13.2.1 Vlan
Use t his screen t o view t he Swit ch's I GMP vlan. Click M onit or > M ult ica st > I GM P > Vla n t o
access t his screen.
Figure 70 Monit or > Mult icast > I GMP > Vlan
C
Sect ion 13.2 on page 75) displays Vlan, st at ist ics, group, and rout er.
GS1900 Series User's Guide
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Monitor: Multicast

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