Ip Performance Optimization Configuration; Ip Performance Optimization Overview; Enabling Reception And Forwarding Of Directed Broadcasts To A Directly Connected Network; Enabling Reception Of Directed Broadcasts To A Directly Connected Network - H3C S5120-SI Series Configuration Manual

IP performance optimization configuration

IP performance optimization overview

In some network environments, you can adjust the IP parameters to achieve best network performance. IP
performance optimization configuration includes:
•
Enabling the device to receive and forward directed broadcasts
•
Configuring TCP timers
•
Configuring the TCP buffer size
•
Enabling ICMP error packets sending
Enabling reception and forwarding of directed
broadcasts to a directly connected network
Directed broadcast packets are broadcast on a specific network. In the destination IP address of a
directed broadcast, the network ID identifies the target network, and the host ID is all ones. If a device is
allowed to forward directed broadcasts to a directly connected network, hackers may mount attacks to
the network, so by default the switch is disabled. However, you should enable the feature when using the
Wake on LAN function to forward directed broadcasts to a host on the remote network.
Enabling reception of directed broadcasts to a directly
connected network
If a device is enabled to receive directed broadcasts, the device determines whether to forward them
according to the configuration on the outgoing interface.
This command is ineffective on the S5120-SI series Ethernet switches. That is, the switches cannot be disabled from
receiving directed broadcasts.
To enable the device to receive directed broadcasts:
To do...
1. Enter system view
2. Enable the device to receive
directed broadcasts
Use the command...
system-view
ip forward-broadcast
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Remarks
—
Optional
Enable by default.