Table; Module; 16-Port Storage Services Module (Ssn-16) - Cisco MDS 9500 Series Overview

Port Index Availability
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
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 SSN-16), one physical port is equal to four port indexes (one port
index for iSCSI and three port indexes for FC IP tunnels).
indexes (virtual ports) available per Cisco MDS 9000 module.

Table 1-8

Module

16-port Storage Services module (SSN-16)

48-port 8-Gbps Fibre Channel switching module
24-port 8-Gbps Fibre Channel switching module
4/44-port 8-Gbps Host-Optimized Fibre Channel
switching module
48-port 4-Gbps Fibre Channel switching module
24-port 4-Gbps Fibre Channel switching module
12-port 4-Gbps Fibre Channel switching module
4-port 10-Gbps Fibre Channel switching module
16-port 2-Gbps Fibre Channel switching module
32-port 2-Gbps Fibre Channel switching module
8-port Gigabit Ethernet IP Storage Services module
4-port Gigabit Ethernet IP Storage Services module
32-port 2-Gbps Fibre Channel Storage Services module
(SSM)
18-port Fibre Channel and 4-port Gigabit Ethernet IP
Multiservice module (MSM-18/4)
14-port Fibre Channel/2-port Gigabit Ethernet
Multiprotocol Services (MPS-14/2) module
1. All Generation 1 modules reserve port indexes on fixed boundaries with Supervisor-1. See
2. 18 Fibre Channel ports and four Gigabit Ethernet ports.
3. 14 Fibre Channel ports and two Gigabit Ethernet ports.
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
means that while there may be enough port indexes available for a Generation 1 module, the module may
not boot up because the available port indexes are not in a contiguous range or the contiguous block does
not start at the first port index for a given slot.
Cisco MDS 9500 Series Hardware Installation Guide
1-28
Port Index Allocation
Chapter 1
Table 1-8 lists the physical ports and port
Physical Ports Port Indexes Allocated
16 64
48 48
24 24
48 48
48 48
24 24
12 12
4 4
1
16 16
1
32 32
1
8 32
4 32 (with Supervisor-1)
16 (with Supervisor-2)
1
32 32
2
22 34
3
16 32 (with Supervisor-1)
22 (with Supervisor-2)
Table 1-9.
Product Overview
Table 1-9). This
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