Functional Description
ATCA-F140 Series Installation and Use (6806800M67S)
101
4.8
Fabric Channel Interface
The ATCA-F140 uses Broadcom BCM56846 switch device for the fabric channel interface.
It is a high-performance 640Gbps network switch with 18 integrated warpCores (16 active).
Each warpCore has four integrated 10G SerDes allowing native support of one 40GbE or
four 10GbE ports. On the ATCA-F140, the BCM56846 is used to provide sixteen (16) 40G
ports and four 1G ports.
12 of the 40Gbps ports are routed to the backplane switch fabric support of a 14-slot
chassis. Two 40Gbps uplink interfaces from the switch are routed to the Zone 3 connectors
for use by an RTM. Two other 40Gbps uplink ports are routed to BCM84740PHYs to
provide two QSFP+ uplinks on the front panel. The P2020 service processor communicates
with the BCM56846 through the PCI Express interface to initialize and manage the switch.
Two 1G-SGMII ports are routed to the backplane for switch fabric support of the two extra
slots in a 16-slot chassis, or optionally, to the TopSync device and Fabric Channel 1. One
1G-SerDes port is routed to AMC port 1. One 1G-SGMII port is routed to update channels
3 and 4 to form a fabric switch-to-AMC cross-connect with the other switch blade across
the backplane.
Table 4-4
Fabric Switch Mapping (Default AXP1440 Chassis Configuration)
BCM56846 Physical Port
Port Name
Destination
Front Panel Label
wc0-0
ge0
Fabric Ch 14 (LS 15)
n/a
wc0-1
ge1
Fabric Ch 15 (LS 16)
n/a
wc0-2
ge2
Backplane UC3/4
n/a
wc0-3
ge3
AMC Port 1
n/a
wc1
xe0
Fabric Ch 2 (LS 3)
n/a
wc2
xe1
Fabric Ch 3 (LS 4)
n/a
wc3
xe2
Fabric Ch 4 (LS 5)
n/a
wc4
xe3
Fabric Ch 5 (LS 6)
n/a
wc5-0
xe4
Fabric Ch 6 (LS 7)
n/a
wc5-1
xe5
Fabric Ch 6 (LS 7)
n/a
wc5-2
xe6
Fabric Ch 6 (LS 7)
n/a
wc5-3
xe7
Fabric Ch 6 (LS 7)
n/a
wc6-0
xe8
Fabric Ch 7 (LS 8)
n/a
wc6-1
xe9
Fabric Ch 7 (LS 8)
n/a
