When deploying Link Aggregation Groups (LAGs), two key default considerations are:
All member ports must have the same speed. This ensures consistent performance and proper aggregation since mismatched speeds can cause issues in traffic distribution and link stability.
Member links can reside on different members within a Multi-Chassis LAG (MC-LAG). MC-LAG allows member links of the aggregation group to be spread across different physical chassis, providing redundancy and load sharing across devices.

In Ethernet switching, learning and aging are two fundamental concepts for maintaining a dynamic Ethernet switching table (also known as a MAC address table). Learning is the process by which switches listen for frames and learn the MAC addresses by associating them with the incoming port. Aging is the mechanism that ensures the switch updates its table by removing MAC addresses that have not been seen for a certain amount of time (aging time).

For other routers to build an IPv4 shortest-path SR-MPLS LSP to R10, R10 must advertise a reachable SR node segment for its IPv4 loopback/prefix. Configuring an explicit IPv4 node SID ensures R10's loopback prefix is associated with a SID in the SRGB and is advertised in IS-IS, allowing the rest of the network to compute and label-switch traffic to R10 using SR.