What is correct regarding multicasting and AOS-CX switches?
What is correct regarding multicasting and AOS-CX switches?
In the context of AOS-CX switches and multicasting, IGMP snooping is disabled by default on Layer-2 VLAN interfaces. This means the switch will not initially monitor IGMP messages to learn which hosts are interested in receiving specific multicast traffic. Without IGMP snooping, multicast traffic can be broadcast to all hosts in a VLAN, which can lead to inefficiencies. Thus, it requires explicit configuration to enable and optimize multicast traffic forwarding.
The correct Answer is A
Correct answer is A
I think the answer is A
The answer should be A
I think the answer is A
Page 565 Study Guide: One exception applies: an IGMP snooping switch DOES forward both unknown and known multicasts on any port on which it has heard IGMP queries – port 1/1 in the figure. This behavior is required so that a multicast stream can reach the multicast router. In fact, by default, the switch forwards unknown multicasts that arrive on one VLAN on any port on which it has heard queries in any VLAN. To c h a n g e t h i s b e h a v i o r a n d r e s t r i c t f o r w a r d i n g t o q u e r i e r p o r t s f o r t h a t s p e c i f i c V L A N , e n t e r the command: Switch(config)# ip igmp snooping drop- unknown vlan- exclusive [Aruba Networks]
The IGMP enabled switch will filter the unknown traffic , but the IGMP-snooping switch will forward it. so I think D is not correct
I agree the answer should be A
Correct answer is A
Correct answer is A
Disregard my answer of B. The correct answer is A :)
I think it is D
IGMP default configuration: IGMP is disabled by default. The default IGMP version is IGMPv3. https://www.arubanetworks.com/techdocs/AOS-CX/10.07/PDF/5200-7876.pdf page17
B: On Aruba AOS-CX switches, IGMP query functions are enabled by default on Layer-2 VLAN interfaces. IGMP (Internet Group Management Protocol) queries are used to discover multicast group memberships and maintain the multicast group membership information within a VLAN. When IGMP snooping is enabled on a Layer-2 VLAN interface, the switch actively sends IGMP queries to the hosts within the VLAN to discover which multicast groups they are interested in. These queries allow the switch to build and maintain the multicast forwarding tables, ensuring that multicast traffic is forwarded only to the ports where interested receivers are located. A is incorrect: on Aruba AOS-CX switches, IGMP snooping is enabled by default on Layer-2 VLAN interfaces. IGMP snooping is a feature that allows switches to monitor IGMP messages exchanged between hosts and multicast routers, enabling the switch to learn which hosts are interested in receiving specific multicast traffic and selectively forward the multicast traffic to those hosts.
A is correct : https://www.arubanetworks.com/techdocs/AOS-CX/10.11/HTML/cli_6200/Content/Chp_igmp_sno/igmp_sno_cmds/ip-igm-sno-vlan.htm
IGMP is a L3 protocol and disabled bu default. A/B/C do not match these criteria. Awnser = D