Cisco ASR 5500, Руководство по установке

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The DPC2/UDPC2 is not equipped with NPUs.
The DPC2/UDPC2 must not be intermixed with the DPC/UDPC in an ASR 5500 chassis. All data processing
cards in the chassis must be of the same type.
Important
Front Cards
The ASR 5500 supports two types of front-mounted cards:
• Fabric and Storage Card (FSC), on page 11
• System Status Card (SSC), on page 12
The crossbars that comprise the switching fabric are on the FSCs. The ASR 5500 supports multiple FSCs.
Each FSC provides six physical fabric planes. When fully populated, there are 24 fabric planes in the system.
A physical fabric plane provides full-mesh connectivity between all traffic sources.
Fabric and Storage Card (FSC)
The ASR 5500 chassis supports multiple FSCs in front facing slots of the chassis.
The FSC features:
• Fabric cross-bars providing in aggregate:
• 120 Gbps full-duplex fabric connection to each MIO/UMIO
• 60 Gbps full-duplex fabric connection to each DPC/UDPC or DPC2/UDPC2
•
FSC-200GB
–
Two 2.5" serial attached SCSI (SAS), 200GB solid state drives (SSDs) with a 6 Gbps
SAS connection to each MIO/UMIO. The SSDs support a RAID 0 configuration on the card.
–
OR
–
•
FSC-400GB
–
One 2.5" serial attached SCSI (SAS), 400GB solid state drive (SSD) with a 6 Gbps SAS
connection to each MIO/UMIO. The FSC-400GB is interchangeable with the FSC-200GB, as long as
the StarOS release supports the non-RAID 0 configuration of the single 400GB drive.
Every FSC adds to the available fabric bandwidth to each card. Each FSC connects to all MIO/UMIOs and
data processing cards, with a varying number of links depending on the MIO/UMIO or data processing card
slot. Three FSCs provide sufficient bandwidth while the fourth FSC supports redundancy.
Although four FSCs are required for redundancy, the system can operate with three FSCs in the presence
of a fourth failed FSC. However, you must install four FSCs for normal operation. Important
The ASR 5500 uses an array of solid state drives (SSDs) for short-term persistent storage. The RAID 5
configuration has each pair of drives on an FSC-200GB striped into a RAID 0 array; all the arrays are then
grouped into a RAID 5 array. The single SSD on the FCS-400GB does not support RAID 0 but participates
in the RAID 5 array.
ASR 5500 Installation Guide
11
ASR 5500 Hardware Platform Overview
Front Cards