Cisco AP775A - Nexus Converged Network Switch 5010 - Page 492

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22-18
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 22 Configuring Generation 2 and Generation 3 Switching Modules
Buffer Credit Allocation
Figure 22-8 Example Speed and Rate Configuration on a 48-Port 4-Gbps Switching Module
•
Six ports with dedicated rate mode and 2-Gbps speed plus
four ports with shared rate mode and 1-Gbps speed plus
two ports put out-of-service (see Figure 22-9)
Figure 22-9 Example Speed and Rate Configuration on a 48-Port 4-Gbps Switching Module
24-Port 4-Gbps Fibre Channel Module BB_Credit Buffers
Table 22-12 lists the BB_credit buffer allocation for 24-port 4-Gbps Fibre Channel switching modules.
4-Gbps
4-Gbps
4-Gbps
1-Gbps
1-Gbps
1-Gbps
Dedicated
Dedicated
Dedicated
Shared Shared
Shared
1
2
3
4
5
7
911
6
810
12
1-Gbps
Shared
Out of
Service
Out of
Service
Out of
Service
Out of
Service
Out of
Service
144858
2-Gbps
2-Gbps
2-Gbps
2-Gbps
2-Gbps
2-Gbps
Dedicated
Dedicated Dedicated Dedicated
Dedicated Dedicated
1-Gbps
Shared
1-Gbps
Shared
1
2
3
4
5
7
911
6
810
12
1-Gbps
Shared
1-Gbps
Shared
Out of
Service
Out of
Service
144859
Table 22-12 24 Port 4-Gbps Switching Module BB_Credit Buffer Allocation
BB_Credit Buffer Allocation
BB_Credit Buffers Per Port
Dedicated Rate Mode
4-Gbps Speed
Shared Rate Mode
4-Gbps Speed
ISL
1
Fx Port Fx Port
Default BB_credit buffers 250 16 16