What is the difference in the roles of IGMP snooping between Querier, Aggregator, and Access?
Options
Zyxel_Chris
Posts: 663 Zyxel Employee
in IPTV
In the context of Internet Group Management Protocol (IGMP) snooping on a network switch, the terms "Querier," "Aggregator," and "Access" refer to different roles or functions that the switch can perform. Let's explore the distinctions between these roles:
Querier:
- Role:
- The Querier is responsible for generating IGMP Query messages on a VLAN to discover which hosts in that VLAN are members of particular multicast groups.
- It's usually connected to the streaming server.
Aggregator:
- Role:
- The Aggregator is not a standard term used in the context of IGMP snooping. It's possible that it could be used informally to describe a switch or device that is aggregating or consolidating information related to multicast group memberships.
- It's usually located the downstream of Querier role switch.
Access:
- Role:
- An Access switch is a device that connects directly to end devices such as computers, printers, or IP phones.
- No streaming server connected, but only connected with the end devices.
Chris
0
Categories
- All Categories
- 395 Beta Program
- 2.1K Nebula
- 117 Nebula Ideas
- 81 Nebula Status and Incidents
- 5.1K Security
- 82 USG FLEX H Series
- 247 Security Ideas
- 1.3K Switch
- 69 Switch Ideas
- 914 WirelessLAN
- 34 WLAN Ideas
- 5.9K Consumer Product
- 210 Service & License
- 337 News and Release
- 71 Security Advisories
- 21 Education Center
- 5 [Campaign] Zyxel Network Detective
- 2K FAQ
- 912 Nebula FAQ
- 415 Security FAQ
- 237 Switch FAQ
- 207 WirelessLAN FAQ
- 46 Consumer Product FAQ
- 139 Service & License FAQ
- 34 Documents
- 34 Nebula Monthly Express
- 72 About Community
- 62 Security Highlight