Configuring ipg on a gbps ethernet port – Brocade TurboIron 24X Series Configuration Guide User Manual
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Brocade TurboIron 24X Series Configuration Guide
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Configuring basic port parameters
Commands may be entered in IF (single port) or MIF (multiple ports at once) mode.
TurboIron(config)#interface ethernet 21
TurboIron(config-if-e10000-21)#flow-control
This command enables flow-control on port 21.
TurboIron(config)#interface e 11 to 15
TurboIron(config-mif-11-15)#flow-control
This command enables flow-control on ports 11 to 15.
TurboIron X SeriesConfiguring the Interpacket Gap (IPG)
IPG is the time delay, in bit time, between frames transmitted by the device. You configure IPG at
the interface level. The command you use depends on the interface type on which IPG is being
configured.
The default interpacket gap is 96 bits-time, which is 9.6 microseconds for 10 Mbps Ethernet, 960
nanoseconds for 100 Mbps Ethernet, 96 nanoseconds for 1 Gbps Ethernet, and 9.6 nanoseconds
for 10 Gbps Ethernet.
Configuration notes
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When you enter a value for IPG, the device applies the closest valid IPG value for the port mode
to the interface. For example, if you specify 120 for a 1 Gbps Ethernet port in 1 Gbps mode, the
device assigns 112 as the closest valid IPG value to program into hardware.
Configuring IPG on a Gbps Ethernet port
On a Gbps Ethernet port, you can configure IPG for 10/100 mode and for Gbps Ethernet mode.
10/100M mode
To configure IPG on a Gbps Ethernet port for 10/100M mode, enter the following command.
TurboIron(config)#interface ethernet 1
TurboIron(config-if-e10000-1)#ipg-mii 120
IPG 120(120) has been successfully configured for ports 1 to 12
Syntax: [no] ipg-mii <bit time>
Enter 12-124 for <bit time>. The default is 96 bit time.
1G mode
To configure IPG on a Gbps Ethernet port for 1-Gbps Ethernet mode, enter commands such as the
following.
TurboIron(config)#interface ethernet 1
TurboIron(config-if-e10000-1)#ipg-gmii 120
IPG 120(112) has been successfully configured for ports 1 to 12
Syntax: [no] ipg-gmii <bit time>
Enter 48 - 112 for <bit time>. The default is 96 bit time.