Trunking optimizes the use of bandwidth by allowing a group of links to merge into a single logical link, called a trunk group. Here you learn to configure Inter-Switch Link trunking on a Connectrix Brocade B-Series switch.
Welcome to Dell Technologies connects Brocade how to series Brocade is L trunking configuration reference Dell knowledge base article number 065513.
This video was created to demonstrate how to configure is ISL trunking on Brocade switch trunking optimizes the use of bandwidth by allowing a group of links to merge into a single logical link called a trunk group.
Trunking can be between two switches known as ISL trunking IC L trunking or E export trunking between a switch and an access gateway module or between a switch and a Brocade adapter known as F port trunking or import trunking.
This video presents the following supported configurations for trunking links within a trunk can be 48, 10, 16 or 32 gigabits per second depending on the Brocade platform. The maximum number of ports per trunk is generally eight but the number of trunks per switch depends on the Brocade platform.
You can have up to eight ports in one trunk group to create high performance isl trunks between switches providing up to 128 gigabits per second based on a 16 gigabits per second port speed. A port group is a group of eight ports based on the user port number such as 0 to 78 to 15, 16 to 23 and up to the number of ports on the switch.
The maximum number of port groups is platform specific refer to the hardware reference manual for your switch for information about which ports can be used in the same port group for trunking. In this figure, highlighted ports with the same color belong to the same port group.
When to do this, when you want to achieve greater performance with fewer links, traffic is distributed dynamically. And in order over the trunk group trunking also improves system reliability by maintaining in order delivery of data and avoiding io retries. If one link within the trunk group fails before you begin license requirements for trunking trunking of non ICL ports requires the trunking license.
This license must be installed on each switch that participates in trunking trunking of ICL ports does not require a trunking license requirements for Trump groups. All of the ports in a trunk group must belong to the same port group. All of the ports in a trunk group must meet the following conditions.
They must be running at the same speed. They must be configured for the same distance. They must have the same quality of service and forward error correction state. They must have the same encryption and compression state configuring Trump groups. After you install the trunking license, you must reinitialize the ports that are to be used in trunk groups so that they recognize that trunking is enabled.
This procedure needs to be performed only once and is required for all types of trunking to re initialize the ports. You can either disable and then re enable the switch or disable and then re enable the affected ports. Run switch show command two is links are connected to switch ports zero and one run isl show now run trunk show you can see that no trunking links are configured.
Although ports zero and one belong to same port group run port CFG show command trunk port is disabled on port zero and one check the licenses added on the switch trunking license must be installed on each switch that participates in trunking. Trunking is automatically enabled.
When you install the trunking license, you need to use this procedure only if trunking has been subsequently disabled on a port or switch enabling trunking disables and re enables the affected ports. As a result traffic through these ports may be temporarily disrupted to enable trunking.
Enter the command port CFG trunk, port port number zero and mode one mode one enables trunking, run the same command on port one now check port CFG show trunk port is enabled on ports zero and one check trunk show to confirm that trunking links are created run switch show command.
You can see that port zero and one form a single trunk with port zero as trunk master important notes, disabling trunking port CFG trunk port command to disable trunking on a port mode zero, disables trunking switch CFG trunk command to disable trunking on all ports on the switch trunks operate best when the cable length of each trunk link is roughly equal to the length of the others in the trunk for optimal performance.
No more than 30 m difference is recommended. Trunks are compatible with both short wavelength and long wavelength fiber optic cables and transceivers. Trunking is performed according to the quality of service configuration on the master and the slave ports that is in a given trunk group.
If there are some ports with Q OS enabled and some with Q Os disabled, they form two different trunks, one with Q OS enabled and the other with Q OS disabled trunk groups requirements. There must be a direct connection between participating switches, trunking cannot be done if ports are in is L are ready mowed.
You can disable this mode by using the port CFG isl mode. Command trunking is supported only on FC ports, virtual FC ports, ports or VX ports do not support trunking. Refer to the following for more information Dell knowledge base article numbers 065513 Brocade Fabric Os command reference guide and the Brocade Fabric Os administrators guide.
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