Protected Inline Network

A protected inline network uses the port pairs associated with optical protection switches located on bypass combo modules on GigaVUE‑HC3, GigaVUE‑HC2, and GigaVUE‑HC1. The specialized hardware triggers a bypass when power is lost to the node. On GigaVUE‑HC2, protected inline networks for copper are supported on the TAP-HC0-G100C0 module. On GigaVUE‑HC1, protected inline networks for copper are supported on the TAP-HC1-G10040 module.

Physical bypass provides protection against failure of the Gigamon node due to a loss of power. When physical bypass is activated, traffic flows from one side of the network to the other, but without monitoring.

Because of the specialized hardware, when a bypass combo module initializes, the system creates inline-network type ports for each of the protected port pairs on the module. This does not happen automatically on the TAP-HC0-G100C0 module on the GigaVUE‑HC2 or on the TAP-HC1-G10040 module on the GigaVUE‑HC1.

A protected inline network is shown in the following figure.

Mix of Protected and Unprotected

Any combination of protected and unprotected inline networks is supported in inline bypass solutions.