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Chapter 16
| Multicast Filtering
Layer 2 IGMP (Snooping and Query)
Specifying Static
Interfaces for a
Multicast Router
Use the Multicast > IGMP Snooping > Multicast Router (Add Static Multicast Router)
page to statically attach an interface to a multicast router/switch.
Depending on network connections, IGMP snooping may not always be able to
locate the IGMP querier. Therefore, if the IGMP querier is a known multicast router/
switch connected over the network to an interface (port or trunk) on the switch, the
interface (and a specified VLAN) can be manually configured to join all the current
multicast groups supported by the attached router. This can ensure that multicast
traffic is passed to all the appropriate interfaces within the switch.
Command Usage
IGMP Snooping must be enabled globally on the switch (see
Snooping and Query Parameters" on page
take effect.
Parameters
These parameters are displayed:
◆
VLAN – Selects the VLAN which is to propagate all multicast traffic coming
from the attached multicast router. (Range: 1-4093)
◆
Interface – Activates the Port or Trunk scroll down list.
◆
Port or Trunk – Specifies the interface attached to a multicast router.
◆
Type (Show Current Multicast Router) – Shows if this entry is static or dynamic.
◆
Expire (Show Current Multicast Router) – Time until this dynamic entry expires.
Web Interface
To specify a static interface attached to a multicast router:
1.
Click Multicast, IGMP Snooping, Multicast Router.
2.
Select Add Static Multicast Router from the Action list.
3.
Select the VLAN which will forward all the corresponding multicast traffic, and
select the port or trunk attached to the multicast router.
4.
Click Apply.
532) before a multicast router port can
– 536 –
"Configuring IGMP
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