In a data center, east-west traffic refers to data movement between servers within the same data center, often within or between racks. This traffic primarily flows through top-of-rack (ToR) switches, which connect servers within the same rack and facilitate communication between them.
A. the top-of-rack and distribution switches: This typically describes north-south traffic, where data moves between the data center and outside networks or between different tiers within the data center.
B. the server and the cloud: This describes traffic moving out of the data center to external locations like the cloud, which is considered north-south traffic.
C. the top-of-rack and core switches: This involves traffic that moves between different layers of the data center network (such as from the ToR to the core switches), typically describing north-south traffic.
Here is my suggestion:
East-West = Horizontal movement: Think of this as moving across the same floor of a building or within the same department in an office.
North-South = Vertical movement: Think of this as moving between different floors of a building or from one building to another.
Hope this helps someone!
In a data center, data traffic typically moves through the following types:
1. **North-South Traffic**:
- **Definition**: Traffic that flows into and out of the data center, typically between the data center and external networks, such as the internet or remote branch offices.
- **Examples**: User requests from the internet to web servers, data replication between data centers, and remote backups.
2. **East-West Traffic**:
- **Definition**: Traffic that moves laterally within the data center, between servers, storage systems, and other internal devices.
- **Examples**: Communication between application servers, database queries from web servers to database servers, and data synchronization between storage systems.
Understanding and managing these traffic types is crucial for optimizing data center performance, ensuring security, and maintaining efficient resource utilization.
D - East west relates to traffic between servers, which is through the top of rack switches
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