Help Center/ Cloud Eye/ FAQs/ Product Usage/ Cloud Service Monitoring/ What Are Outband Incoming Rate and Outband Outgoing Rate?
Updated on 2026-03-05 GMT+08:00
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What Are Outband Incoming Rate and Outband Outgoing Rate?

Concept Explanation

You need to understand the meaning of outband and inband:

Outband

  • Outband is the opposite to inband. Inband indicates that the monitored object is an ECS. Outband indicates that the monitored object is the physical server at the virtualization layer.

Incoming and Outgoing

  • Incoming indicates traffic comes to an ECS per second.
  • Outgoing indicates traffic sent from an ECS to an external network or client per second.

The following figure shows the traffic directions.

Metric Description

Table 1 Outband incoming/outgoing rate

Item

Description

Outband incoming rate

Traffic coming into an ECS per second

For example, traffic generated when you download resources to an ECS from an external network or upload files to the ECS.

Unit: byte/s

Outband outgoing rate

Traffic going out of an ECS per second

For example, traffic generated when users access an ECS via the internet or when the ECS functions as an FTP server for users to download resources.

Unit: byte/s
Table 2 Outband incoming/outgoing rate

Item

Description

Outband incoming rate

Number of incoming bytes on an ECS per second on the hypervisor.

Formula: Outband incoming rate = Total number of outband incoming bytes on an ECS/Monitoring interval

This metric is unavailable if SR-IOV is enabled.

Unit: byte/s

Outband outgoing rate

Number of outgoing bytes on an ECS per second on the hypervisor.

Formula: Outband outgoing rate = Total number of outband outgoing bytes on an ECS/Monitoring interval

This metric is unavailable if SR-IOV is enabled.

Unit: byte/s
Parent topic: Cloud Service Monitoring