Hello everyone,
This post is about the process of how to calculate the bandwidth between the eSight server and devices. Please find it as you read further down.
Bandwidth between the eSight server and devices
Total bandwidth between eSight and devices = Device management bandwidth + Additional bandwidth for terminal upgrade + Additional bandwidth for network traffic + Additional bandwidth for servers.
Recommended bandwidth: 50 Mbit/s
Device management bandwidth (X indicates the total number of devices, including terminals and other box devices):
X < 2000, minimum bandwidth required: 2 Mbit/s
X > 2000, minimum bandwidth required: 2 Mbit/s + (X – 2000) x 0.8 kbit/s
Additional bandwidth for terminal (IP phones and CPEs) upgrade (Y indicates the number of terminals):
(Y/10) x 256 kbit/s
NOTE:
The planned bandwidth for each terminal upgrade is 256 kbit/s. In the formula, Y/10 indicates that 10% terminals are concurrently upgraded. eSight allows users to upgrade 100 terminals at the same time, requiring 25.6 Mbit/s.
Additional bandwidth for network traffic:
N x 400 bit/s
NOTE:
In the formula, N indicates the number of flows and its unit is flow/s.
The bandwidth for a flow is calculated as follows: (1500/30) x 8 bit/s = 400 bit/s. Here, 1500 indicates that the average size of a NetStream packet is 1500 bytes, and 30 indicates that a NetStream packet has 30 flows on average.
Reference: The number of flows varies according to the service. For a scenario in which a 50 GB bandwidth is required for monitoring and the sampling ratio is 1000:1, for 10,000 to 30,000 flows, the bandwidth of 3.8 Mbit/s to 10 Mbit/s is required.
Additional bandwidth for deploying the operating system for servers:
15 Mbit/s
NOTE:
eSight allows users to load and deploy the operating system image through the ServiceCD. Deploying the operating system for each server requires 1.5 Mbit/s. eSight allows users to deploy the operating system for a maximum of 10 servers at the same time, requiring 15 Mbit/s (10 x 1.5 Mbit/s).
Bandwidth between the eSight server and web client
Bandwidth for communication between the eSight server and client = Bandwidth between a single eSight client and eSight server x Number of clients.
The communication bandwidth between a single eSight client and eSight server must be at least 2 Mbit/s. It is recommended that the bandwidth be greater than 10 Mbit/s.
NOTE:
Requirements for eSight to access the network: delay < 30 ms, packet loss rate < 0.1%
Bandwidth between the eSight server and OSS
≥ 100 Mbit/s
Bandwidth between the upper-layer and lower-layer NMSs of eSight
≥ 10 Mbit/s
Bandwidth between the active and standby servers in the HA system
≥ 100 Mbit/s
NOTE:
Network between the active and standby servers in the HA system: delay < 30 ms, packet loss rate < 0.1%.
This is what I want to share with you today, thank you!
