3Com 4007, Implementation Manual, Page: 141 / 684

Allocating Switch Fabric Capacity to Slots 141
24-port GEN Switch
Fabric Module
The capacity of the 24-Port Gigabit Ethernet Switching Fabric Module
(3CB9FG24T
)
is distributed across the slots in the chassis. The module
capacity is expressed in terms of backplane ports . When a switching
module is installed, its rear ports communicate with the switch fabric
module backplane ports that are assigned to its slot. The module’s 24
backplane ports are assigned to the chassis slots as indicated in Table 34.
Table 34 Mapping the 24-port Switch Fabric Module (SFM)
Chassis
Slot No.
SFM backplane port
numbers that are
assigned to the slot SFM LEDs that are
assigned to the
backplane ports
1 1
2
3
4
1
2
13
14
2 5
6
7
8
3
4
15
16
3 9
10
11
12
5
6
17
18
4 13
14
15
16
7
8
19
20
5 17
18
19
20
9
10
21
22
6 21
22
23
24
11
12
23
24
7 Not applicable. Switch fabric module slot only.