Cisco MDS 9500 Series Overview page 22

Supervisor Modules
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
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Crossbar Switching Fabric
The Cisco MDS 9500 Series supervisor modules provide an integrated crossbar switching fabric to
connect all the switching modules. Dual fabric configurations provide 2.1-Tbps system throughput with
192-Gbps full duplex bandwidth per switching module.
The Cisco MDS 9500 Series supports redundant supervisor modules. Upon power up with slots 5 and 6
active, the supervisors negotiate to determine which one is active and which is the standby supervisor.
Each supervisor exchanges its own status and updates the signal quality error (SQE) status periodically.
If the active supervisor becomes disabled, the standby supervisor switches over to become the active
supervisor.
Dual supervisor modules provide dual crossbar switching fabrics for redundancy.
Processor
The Supervisor-1 module contains a Pentium III class processor. It has the following memory
specifications:
Memory
DRAM
1 internal CompactFlash card
1 external CompactFlash slot
1. The card stores software images.
2. The slot is for optional cards to store additional images, and for configuration, debugging, and
3. NA = not applicable.
Port Interfaces
The Supervisor-1 module provides the following port interfaces:
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Cisco MDS 9500 Series Hardware Installation Guide
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If the kernel service cannot perform a warm restart of the process, it issues a cold restart.
A nondisruptive switchover from the active supervisor to a redundant standby without loss of traffic.
If the supervisor module has to be restarted, then the secondary supervisor (which is continuously
monitoring the primary) takes over. Once a switchover has occurred and the failed supervisor has
been replaced or restarted, operation does not switch back to the original primary supervisor, unless
it is forced to switch back or another failure occurs.
2
syslog information.
RS-232 (EIA/TIA-232) console port with an RJ-45 connection that you can use to:
Configure the Cisco MDS 9500 Series from the CLI
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Monitor network statistics and errors
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Configure SNMP agent parameters
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MGMT 10/100 Ethernet port with an RJ-45 connection that provides network management
capabilities.
RS-232 COM1 port with a DB-9 connector, which can be attached to a modem.
CompactFlash slot for an optional CompactFlash card. The optional card can be used for storing
additional software images and configuration, debugging, and syslog information.
Bytes
1 GB
1
512 MB
3
NA
Chapter 1 Product Overview
OL-21516-01