Brocade Communications Systems VDX 8770-4, Hardware Installation Manual, Page: 22 / 141

Chassis slots
Chassis slots are coded and numbered to differentiate between management module slots, switch fabric module slots, and line card
slots. Management modules (MMs) must be installed only in slots M1 and M2. switch fabric modules (SFMs) must be installed only in
slots S1 through S6. There must be at least one switch fabric module installed in either slot S3 or slot S4. The line card slots, L1 through
L8, can be filled with any supported line cards. Unused slots must be filled with the correct filler panels to maintain adequate cooling.
Port numbering
Use the illustrations provided to understand the port numbering for each line card supported on the device.
12x40 GbE port numbering
The following illustration shows the 12x40 GbE line card modules. Ports are numbered 1 through 12 from left to right when installed in the
device.
FIGURE 4 12x40 GbE line card
48x1 GbE and 48x10 GbE port numbering
The following illustration shows the 48x1 GbE and 48x10 GbE line card modules. Ports are numbered from 1 through 48, from left to
right, with the odd-numbered ports on the upper row and the even-numbered ports on the lower row when installed in the switch.
FIGURE 5 48x10 GbE line card (48x1 GbE line card is similar)
48x10G-T port numbering
The following illustration shows the 48x10G-T line card modules. Ports are numbered from 1 through 48, from left to right, with the odd-
numbered ports on the upper row and the even-numbered ports on the lower row when installed in the switch.
FIGURE 6 48x10G-T line card
Product Overview
Brocade VDX 8770-4 Hardware Installation Guide
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