Cisco MDS 9000 Series Configuration Manual page 164

Forwarding Engines
TCAM Entries:
=============
Mod Fwd
Eng
––– –––
1 0
1 0
1 1
1 1
1 2
1 2
1 3
1 3
1 4
1 4
1 5
1 5
...
The above example indicates the following:
• There are six forwarding engines, 0 through 5.
• Since there are 48 ports on a Cisco MDS DS–X9448–768K9 module, each forwarding engine handles
eight ports.
• Each forwarding engine has 49136 entries in region 3 (the zoning region) for input. This is the main
region that is used, and consequently, has the largest amount of available entries.
• Forwarding engine 2 has only two entries that are currently in use out of the total 49136 in the zoning
region.
Note The commands that are used to view TCAM usage on fabric switches are different from the ones used for
director–class switches. For MDS 9148, MDS 9148S, and MDS 9250i fabric switches, use the show system
internal acltcam-soc tcam-usage command. For director class switches, MDS 9396S, and 32 Gbps fabric
switches, use the show system internal acl tcam-usage command.
The following table provides information about ports to forwarding engines mapping:
Table 12: Ports to Forwarding Engines Mapping
Switch or Module
MDS 9132T
Cisco MDS 9000 Series Fabric Configuration Guide, Release 8.x
142
Region1 Region2
Dir TOP SYS SECURITY
Use/Total Use/Total
–––––– –––––––––– ––––––––– –––––––––––– ––––––––– ––––––––– –––––––––
INPUT 55/19664 0/9840
OUTPUT 13/4075 0/1643
INPUT 52/19664 0/9840
OUTPUT 7/4078 0/1646
INPUT 34/19664 0/9840
OUTPUT 5/4078 0/1646
INPUT 34/19664 0/9840
OUTPUT 5/4078 0/1646
INPUT 34/19664 0/9840
OUTPUT 5/4078 0/1646
INPUT 34/19664 0/9840
OUTPUT 5/4078 0/1646
Forwarding
Engines
2
Region3 Region4
ZONING BOTTOM
Use/Total Use/Total Use/Total Use/Total
0/49136* 17/19664
0/11467 0/4075
2/49136* 14/19664
0/11470 0/4078
0/49136* 10/19664
0/11470 0/4078
0/49136* 10/19664
0/11470 0/4078
0/49136* 10/19664
0/11470 0/4078
0/49136* 10/19664
0/11470 0/4078
Port Ranges Forwarding
Engine Number
1–16 0
17–32 1
Configuring and Managing Zones
Region5 Region6
FCC DIS FCC ENA
0/0 0/0
6/1649 21/1664
0/0 0/0
6/1652 5/1651
0/0 0/0
6/1652 1/1647
0/0 0/0
6/1652 1/1647
0/0 0/0
6/1652 1/1647
0/0 0/0
6/1652 1/1647
Zoning Region Bottom Region
Entries Entries
49136 19664
49136 19664