Changing the gbps fiber negotiation mode, Modifying port priority (qos), Configuring port flap dampening – Brocade TurboIron 24X Series Configuration Guide User Manual
Page 73: Configuring ipg on a 10 gbps ethernet interface
Brocade TurboIron 24X Series Configuration Guide
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Configuring basic port parameters
Configuring IPG on a 10 Gbps Ethernet interface
To configure IPG on a 10 Gbps Ethernet interface, enter commands such as the following.
TurboIron(config)#interface ethernet 1
TurboIron(config-if-e10000-1)#ipg-xgmii 120
IPG 120(128) has been successfully configured for port 1
Syntax: [no] ipg-xgmii <bit time>
Enter 96-192 for <bit time>. The default is 96 bit time.
Changing the Gbps fiber negotiation mode
The globally configured Gbps negotiation mode is the default mode for all Gbps fiber ports. You
can override the globally configured default and set individual ports to the following:
•
Negotiate-full-auto – The port first tries to perform a handshake with the other port to
exchange capability information. If the other port does not respond to the handshake attempt,
the port uses the manually configured configuration information (or the defaults if an
administrator has not set the information). This is the default.
•
Auto-Gbps – The port tries to perform a handshake with the other port to exchange capability
information.
•
Negotiation-off – The port does not try to perform a handshake. Instead, the port uses
configuration information manually configured by an administrator.
To change the mode for individual ports, enter commands such as the following.
TurboIron(config)#int ethernet 1 to 4
TurboIron(config-mif-1-4)#gig-default auto-gig
This command overrides the global setting and sets the negotiation mode to auto-Gbps for ports 1
– 4.
Syntax: gig-default neg-full-auto | auto-gig | neg-off
NOTE
When Gbps negotiation mode is turned off (CLI command gig-default neg-off), the device may
inadvertently take down both ends of a link. This is a hardware limitation for which there is currently
no workaround.
Modifying port priority (QoS)
You can give preference to the inbound traffic on specific ports by changing the Quality of Service
(QoS) level on those ports. For information and procedures, refer to
Configuring port flap dampening
Port Flap Dampening increases the resilience and availability of the network by limiting the number
of port state transitions on an interface.