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Network Connectivity
This section shows how the supported adapter card configurations for the B420 M4 connect to the Fabric
Extender modules in the 5108 blade server chassis.
There are three configurable adapter slots on the B420 M4. One slot supports only the VIC 1340/1240
adapter, and two additional slots accommodate Cisco adapters, as well as Cisco UCS Storage Accelerator
adapters.
Table 12 on page 23
install at least one VIC adapter in one of the three adapter slots.
Maximum bandwidth is a function of the Fabric Extender, the adapter, and the adapter slot, as shown in
Table
30.
Table 30
FEX Model
2304/2208XP
2204XP
Figure 11
shows the configuration for maximum bandwidth, where the following ports are routed to 8-port
Fabric Extender Modules A and B inside the 5108 blade server chassis:
4 x 10 Gb KR ports from the VIC 1340/1240 adapter
■
4 x 10 Gb KR ports from the Port Expander
■
8 x 10 Gb KR ports from the VIC 1380/1280 adapter
■
4 x 10 Gb from a Cisco Storage Accelerator when placed in adapter slot 2, similar to the
■
Cisco UCS Port Expander Card for VIC. Requires UCSM 2.2(4b) or later.
The resulting aggregate bandwidth is 160 Gb (80 Gb to each Fabric Extender).
Cisco UCS B420 M4 Blade Server
and
Table 13 on page 24
Maximum Bandwidth Using Dual Fabric Extenders (FEXs)
Maximum
Bandwidth
Using Dual
FEXs
160 Gb
80 Gb
NOTE: In
Figure
11, note that CPU4 controls adapter slot 2. In the case where a
Port Expander is installed in this slot, CPU4 is not needed. However, in the case
where a Storage Accelerator is installed in the slot, CPU4 must be installed.
show supported adapter configurations. You must
Example Configuration to Achieve Maximum Bandwidth
Adapter 1 = VIC 1340/1240 (40 Gb)
Adapter 2 = Port Expander (40 Gb)
Adapter 3 = VIC 1380/1280 (80 Gb)
See
Figure 26 on page 56
Adapter 1 = VIC 1340/1240 (20 Gb)
Adapter 2 = Port Expander (20 Gb)
Adapter 3 = VIC 1380/1280 (40 Gb)
See
Figure 34 on page 61
SUPPLEMENTAL MATERIAL
45
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