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fintech:multicast

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fintech:multicast [2023/05/19 22:42] – jotasandokufintech:multicast [2025/05/18 10:02] (current) – jotasandoku
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-  * Cisco fintech architecture: MDNA [[https://www.cisco.com/c/dam/en_us/solutions/industries/docs/finance/md-arch-ext.pdf|External_Link]]+  * Multicast summary [[https://chatgpt.com/s/dr_6829afd200848191914e65c55e127de2|External_Link]]
  
 TECH NOTES: TECH NOTES:
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   * DESIGNATED ROUTER: Routers configured for IP multicast send PIM hello messages to determine which router will be the designated router (DR) for each LAN segment (subnet). The hello messages contain the router's IP address, and the router with the **highest IP address becomes the DR**   * DESIGNATED ROUTER: Routers configured for IP multicast send PIM hello messages to determine which router will be the designated router (DR) for each LAN segment (subnet). The hello messages contain the router's IP address, and the router with the **highest IP address becomes the DR**
     * in each LAN segment where one or more multicast enabled routers are connected to you can see the three roles of PIM DR, IGMP querier, PIM forwarder.     * in each LAN segment where one or more multicast enabled routers are connected to you can see the three roles of PIM DR, IGMP querier, PIM forwarder.
-      * **PIM DR has to represent the LAN segment/broadcast domain in the PIM tree topology so it is responsible to contact the RP in PIM SM or sparse-dense mode.**+  * PIM FORWARDER: Is different. When data can be sent to a receiver via two different routers, there's an 'ASSERT' election process to choose one of them, this becomes the pim forwarder
   * QUERIER: When a multicast-enabled router first becomes active on a subnet, it assumes that it is the Querier — the router responsible for sending all General and Group-Specific Queries to the subnet. When there are multiple routers, the rule for electing the Querier is simple: The router whose connected interface has the **lowest IP address is the Querie**. [[http://www.bscottrandall.com/5.1.3.html]]   * QUERIER: When a multicast-enabled router first becomes active on a subnet, it assumes that it is the Querier — the router responsible for sending all General and Group-Specific Queries to the subnet. When there are multiple routers, the rule for electing the Querier is simple: The router whose connected interface has the **lowest IP address is the Querie**. [[http://www.bscottrandall.com/5.1.3.html]]
-  * Do not confuse the PIM forwarder with the Designated Router. Designated router is responsible for sending pim join/register messages from/to the RP (elected with the highest IP) 
  
  
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 ---- ----
-ASSERT MESSAGE:\\ 
- 
  
 NX-OS CONFIGURATION: NX-OS CONFIGURATION:
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   * pim cannot be enabled in loopback interfaces. Nonetheless is not required to enable RP.   * pim cannot be enabled in loopback interfaces. Nonetheless is not required to enable RP.
  
-This is for static and BSR RP:+  ! This is for static and BSR RP:
   interface Vlan100   interface Vlan100
      ip address 10.1.8.3/24      ip address 10.1.8.3/24
fintech/multicast.1684536179.txt.gz · Last modified: (external edit)

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