Network: TCP Bytes

This statistic shows TCP payload bytes/second, excluding the Ethernet/IB, IP and TCP headers.

When to Check TCP Bytes

Rarely. Network throughput monitoring can be achieved using the standard Analytics statistic Network: Device Bytes, which is enabled and achieved by default. Examining by-client throughput can usually be achieved through the Protocol statistic (for example, Protocol iSCSI bytes, which allows other useful breakdowns based on the protocol). This statistic is most useful if the previous two were not appropriate for some reason.

TCP Bytes Breakdowns

Table 6-31 Breakdowns of TCP Bytes

Breakdown	Description
client	Remote client, either as a hostname or IP address.
local service	TCP port: http/ssh/215(administration)/...
direction	Relative to Oracle ZFS Storage Appliance, in/out.
local IP address	Oracle ZFS Storage Appliance IP address that packets are sent from or received on.