Creating Brocade Inter-Switch Link Trunks - Brocade Communications Systems VDX 8770-4 Quick Start Manual

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Leave at least 1 m (3.28 ft) of slack for each port cable. This provides room to remove and replace the
Brocade VDX 8770-4, allows for inadvertent movement of the rack, and helps prevent the cables from being
bent to less than the minimum bend radius.
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The minimum bend radius should be no smaller than ten times the cable radius. The minimum radius to
which a 50 micron cable can be bent under full tensile load is 5.1 cm (2 in.). For a cable under no tensile
load, that minimum is 3.0 cm (1.2 in.).
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If ISL trunking is in use, group the cables by trunking group.
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Generally, Velcro
cables. Do not use tie wraps with optical cables because they are easily overtightened and can damage the
optic fibers.
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For easier maintenance, label the fiber-optic cables and record the devices to which they are connected.
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Do not route cables in front of the air intake vents.
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Route the cables to the sides of the Brocade VDX 8770-4 through the vertical cable management fingers.
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Keep LEDs visible by routing port cables and other cables away from the LEDs.

Creating Brocade inter-switch link trunks

In VCS mode, unless specifically disabled, Brocade trunking between adjacent switches is automatic in order to form
the VCS cluster. This occurs only on the 48x10G line cards. All ports must be in the same port group and must be
configured at the same speed. There is a limit of eight ports per trunk group. While a VCS license is required when
connecting more than two switches, no separate licensing is required for Brocade trunking. For more information
about Brocade trunks, see the Brocade Network OS Administrator's Guide.
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-type cable restraints are recommended to avoid creating sharp bends or kinks in the
Brocade VDX 8770-4 QuickStart Guide
Publication Number: 53-1002554-01