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Before forwarding multicast traffic, the amt interface establishes between
gateway and relay. In order to establish, amt defined some message type
and those message flow looks like the below.
Gateway Relay
------- -----
: Request :
[1] | N |
|---------------------->|
| Membership Query | [2]
| N,MAC,gADDR,gPORT |
|<======================|
[3] | Membership Update |
| ({G:INCLUDE({S})}) |
|======================>|
| |
---------------------:-----------------------:---------------------
| | | |
| | *Multicast Data | *IP Packet(S,G) |
| | gADDR,gPORT |<-----------------() |
| *IP Packet(S,G) |<======================| |
| ()<-----------------| | |
| | | |
---------------------:-----------------------:---------------------
~ ~
~ Request ~
[4] | N' |
|---------------------->|
| Membership Query | [5]
| N',MAC',gADDR',gPORT' |
|<======================|
[6] | |
| Teardown |
| N,MAC,gADDR,gPORT |
|---------------------->|
| | [7]
| Membership Update |
| ({G:INCLUDE({S})}) |
|======================>|
| |
---------------------:-----------------------:---------------------
| | | |
| | *Multicast Data | *IP Packet(S,G) |
| | gADDR',gPORT' |<-----------------() |
| *IP Packet (S,G) |<======================| |
| ()<-----------------| | |
| | | |
---------------------:-----------------------:---------------------
| |
: :
1. Discovery
- Sent by Gateway to Relay
- To find Relay unique ip address
2. Advertisement
- Sent by Relay to Gateway
- Contains the unique IP address
3. Request
- Sent by Gateway to Relay
- Solicit to receive 'Query' message.
4. Query
- Sent by Relay to Gateway
- Contains General Query message.
5. Update
- Sent by Gateway to Relay
- Contains report message.
6. Multicast Data
- Sent by Relay to Gateway
- encapsulated multicast traffic.
7. Teardown
- Not supported at this time.
Except for the Teardown message, it supports all messages.
In the next patch, IGMP/MLD logic will be added.
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| .. | ||
| accessibility | ||
| acpi | ||
| amba | ||
| android | ||
| ata | ||
| atm | ||
| auxdisplay | ||
| base | ||
| bcma | ||
| block | ||
| bluetooth | ||
| bus | ||
| cdrom | ||
| char | ||
| clk | ||
| clocksource | ||
| comedi | ||
| connector | ||
| counter | ||
| cpufreq | ||
| cpuidle | ||
| crypto | ||
| cxl | ||
| dax | ||
| dca | ||
| devfreq | ||
| dio | ||
| dma | ||
| dma-buf | ||
| edac | ||
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| hwspinlock | ||
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| Kconfig | ||
| Makefile | ||