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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Cisco MDS 9500 Series Hardware Installation Guide
OL-17467-02
Chapter 1 Product Overview
Port Index Availability
Port Index Availability
The Cisco MDS 9500 Multilayer Directors are designed to operate with any combination of Cisco MDS
9000 modules. However, you should be aware of the maximum port availability your chassis can support.
A port index is an internally assigned number that Cisco NX-OS uses to switch data packets within the
director or fabric switch. When the maximum number of port indexes is reached in a chassis, any
modules remaining or added to the chassis will not boot up. The number of physical ports on a Fibre
Channel module is equal to its number of port indexes. However, for Gigabit Ethernet modules (IPS-8,
IPS-4, MPS-14/2, MSM-18/4, and MSFM 18/4), one physical port is equal to four port indexes (one port
index for iSCSI and three port indexes for FC IP tunnels).
Table 1-8
lists the physical ports and port
indexes (virtual ports) available per Cisco MDS 9000 module.
Using any combination of modules that include a Generation 1 module or a Supervisor-1 module limits
the port index availability to 252 on all Cisco MDS 9500 Series directors. Generation 1 modules also
require contiguous port indexes where the system assigns a block of port index numbers contiguously
starting from the first port index reserved for the slot that the module is inserted in (See
Table 1-9
). This
Table 1-8
Port Index Allocation
Module
Physical Ports
Port Indexes Allocated
48-port 8-Gbps Fibre Channel switching module
48
48
24-port 8-Gbps Fibre Channel switching module
24
24
4/44-port 8-Gbps Host-Optimized Fibre Channel
switching module
48
48
48-port 4-Gbps Fibre Channel switching module
48
48
24-port 4-Gbps Fibre Channel switching module
24
24
12-port 4-Gbps Fibre Channel switching module
12
12
4-port 10-Gbps Fibre Channel switching module
4
4
16-port 2-Gbps Fibre Channel switching module
16
16
1
1.
All Generation 1 modules reserve port indexes on fixed boundaries with Supervisor-1. See
Table 1-9
.
32-port 2-Gbps Fibre Channel switching module
32
32
1
8-port Gigabit Ethernet IP Storage Services module
8
32
1
4-port Gigabit Ethernet IP Storage Services module
4
32 (with Supervisor-1)
16 (with Supervisor-2)
32-port 2-Gbps Fibre Channel Storage Services module
(SSM)
32
32
1
18-port Fibre Channel and 4-port Gigabit Ethernet IP
Multiservice module (MSM-18/4)
22
2
2.
18 Fibre Channel ports and four Gigabit Ethernet ports.
34
18-port Fibre Channel and 4-port Gigabit Ethernet IP
Multiservice FIPS module (MSFM-18/4)
22
3
3.
18 Fibre Channel ports and four Gigabit Ethernet ports.
34
14-port Fibre Channel/2-port Gigabit Ethernet
Multiprotocol Services (MPS-14/2) module
16
4
4.
14 Fibre Channel ports and two Gigabit Ethernet ports.
32 (with Supervisor-1)
22 (with Supervisor-2)