B. Member links must use the same MTU.
- For link aggregation to work correctly, all member links must have the same MTU setting. This ensures uniformity across the links in the aggregate group.
D. LAGs provide physical layer redundancy.
- Link Aggregation Groups (LAGs) provide redundancy by bundling multiple physical links into a single logical link, offering redundancy and increasing bandwidth.
Explanation for incorrect options:
- A. IP traffic is hashed using source and destination MAC addresses.
- In Juniper, IP traffic in a LAG is usually hashed using various fields (like IP addresses, MAC addresses, etc.), but the exact fields used depend on the hashing algorithm configured.
- C. All RE-generated traffic traverses the lowest member link.
- This is incorrect, as RE (Routing Engine) traffic doesn't always traverse the lowest member link; it can use any link in the LAG based on the hashing mechanism.
C is correct, and you cannot configure MTU on an interface that wil be part of an aggregated, an error is displayed
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Wadakara
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