A‑Link and Private Network Requirements
A-Link and private networks have the following requirements:
- The networks use IPv6 link-local addressing.
- All A-Link and private networks on one PM of an everRun system must be in the same L2 broadcast domain as its matching links on the other physical machine (PM), without any protocol filtering.
- Ethernet packets sent between two PMs of a system must not be obstructed or rate-limited. Ensure that they are not routed or switched by any L3 network infrastructure.
- Each PM can have one to eight A-Link networks; however, a minimum of two is recommended.
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The networks use 1 Gb to 10 Gb Ethernet ports. A-link networks can use 25 Gb Ethernet ports. The speed of A-Link networks should be equal to or greater than the speed of business or management networks.
- Network traffic for storage replication between PMs is sent over A-Link networks. A-Link networks are not required to be directly connected; instead, they can connect to a network switch.
- Private networks have no network hosts connected other than the everRun end-points.
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The system assigns each virtual machine (VM) to a minimum of one or a maximum of two A-Link networks. However, each A-Link network can have multiple VMs assigned to it.
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