Port Pairs
A port-pair is a bidirectional connection in which traffic arriving on one port in the pair is transmitted out the other (and vice-versa) as a passthrough TAP. Keep in mind the following rules and notes for port-pairs:
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You can configure whether a port-pair uses link status propagation. Link port propagation does the following: |
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Enabled—when one port in the pair goes down, the other port goes down. |
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Disabled—when one port in the pair goes down, the other port is unaffected. |
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Port-pairs can be established between ports using different speeds. For example, from a 100Mb port to a 1Gb port. However, the system will warn you when creating such port-pairs. Depending on traffic volume, port-pairs between ports using different speeds can cause packet loss when going from a faster port to a slower port. For example, going from 1Gb to 100Mb, from 10Gb to 1Gb, and so on. |
To configure a port pair, do the following:
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Select Ports > Port Pairs. |
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On the Port Pair page, do the following: |
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(Optional) Type an alias in the Alias field to help identify this port pair. |
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(Optional) Type a description in the Description field. |
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Click in the First Port field and select a network port. |
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Click in the Second Port field and select another network port. |
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(Optional) Enable Link Failure Propagation. |
Port pairs can operate with or without line failure propagation (LFP) as follows:
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With LFP enabled, link failure on one of the ports in the port pair automatically brings down the opposite side of the port pair. |
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With LFP disabled, the opposite port is not brought down automatically. |
Note: A port pair created on a copper TAP has LFP enabled by default.
