ZyXEL Communications GS1900-8HP - Monitor: Multicast; C Ha Pte R 13 Mo Nito R: Multic a St; Overview; What You Can Do in this Chapter

GS1900 Series User’s Guide
90
C HAPTER 13
Mo nito r: Multic a st
13.1 O ve rvie w
This section provides information for Multic a st in Mo nitor.
Traditionally, IP packets are transmitted in one of either two ways – Unicast (1 sender to 1 recipient) or
Broadcast (1 sender to everybody on the network). Multicast delivers IP packets to just a group of hosts
on the network.
IGMP (Internet Group Management Protocol) is a network-layer protocol used to establish membership
in an IPv4 multicast group – it is not used to carry user data. Refer to RFC 1112, RFC 2236 and RFC 3376 for
information on IGMP versions 1, 2 and 3 respectively.
13.1.1 Wha t Yo u C a n Do in this C ha pte r
The IGMP screen (
Section 13.2 on page 90) displays Vlan, statistics, group, and router.
13.2 IG MP
Use this screen to view Switch various multicast features.
13.2.1 VLAN
Use this screen to view the Switch’s IGMP VLAN. Click Mo nitor > Multic a st > IG MP > VLAN to access this
screen.
Fig ure 91 Monitor > Multicast > IGMP > VLAN
Each field is described in the following table.
Table 40 Monitor > Multicast > IGMP > VLAN
LABEL DESCRIPTION
IGMP Vlan
VLAN ID Displays the identification for the VLAN.
Operate Status Displays the status of the operation.