CCNA (Hindi) Day 26 | OSPF Explained Step by Step скачать в хорошем качестве

CCNA (Hindi) Day 26 | OSPF Explained Step by Step

For two routers to form an OSPF neighborship, several criteria must be met: both routers must be in the same OSPF area, have the same subnet mask and network address on their connecting interfaces, and have compatible hello and dead intervals. Additionally, if authentication is enabled, it must be configured identically on both routers. Finally, each router should have a unique Router ID. Here's a more detailed breakdown: 1. Area ID: Both routers must be configured to belong to the same OSPF area. 2. Subnet and Mask: The interfaces connecting the two routers must be on the same subnet and have the same subnet mask. 3. Hello and Dead Intervals: The hello and dead intervals must match for both routers. These timers define how often hello packets are exchanged and how long a router waits before declaring a neighbor down. 4. Authentication: If OSPF authentication is enabled, the authentication type (e.g., simple password or cryptographic authentication) and the authentication key or password must be identical on both routers. 5. Router ID: Each router in an OSPF network must have a unique Router ID. 6. Network Type: The OSPF network type (e.g., broadcast, point-to-point, etc.) should be compatible. 7. MTU: The Maximum Transmission Unit (MTU) of the interfaces should match or the "mtu-ignore" option may need to be configured on the router with the larger MTU. 8. Stub Flags: If a router is configured as a stub area, the stub flags must also match between the neighbors. If any of these criteria are not met, the routers will not form a neighbor relationship. #internet #networkdiscovery #ccna #computerscience #education #engineering #networkengineer #technology #tech #ospf #ccna #routingprotocols #routing #router #route #cisco #ciscopackettracer #ciscoengineer #ospf #networkadministrator #education