14-3
Cisco ONS 15454 SONET/SDH ML-Series Multilayer Ethernet Card Software Feature and Configuration Guide, R4.0
78-15224-02
Chapter 14 Configuring the Switching Database Manager
Configuring SDM
To configure SDM maximum size for each application region, perform the following procedure,
beginning in global configuration mode:
The following is an example of limiting the IP-Prefix region to 2K entries:
Router # configure terminal
Router(config)# sdm size ip-prefix k-entries 2
Router(config)# end
To display the number of available TCAM entries, enter the show sdm size command from global
configuration mode:
Router # show sdm size
Active Switching Database Region Maximum Sizes :
IP Adjacency : 65536 64-bit entries
IP Prefix : 204864-bit entries
QoS Classifiers : 65536 64-bit entries
IP VRF Prefix : 65536 64-bit entries
IP Multicast : 65536 64-bit entries
MAC Addr : 65536 64-bit entries
Access List : 6553664-bit entries
Configuring Access Control List Size in TCAM
The default maximum size of the Access Control List (ACL) is 65,536 64-bit entries. You can enter the
sdm access-list command to limit the TCAM space for ACLs, as shown in Table 14-2.
The following output is an example of configuring 8,192 entries for the ACL region in TCAM:
Router# configure terminal
Router(config)# sdm access-list 8192
Router(config)# end
Command Purpose
Step 1
Router(config)# sdm size
region-name
[k-entries]
num-of-entries
Sets the name of the application region whose size you want to
configure. You can enter the size as multiples of 1K (that is, 1024)
entries or in absolute number of entries.
Step 2
Router(config)# end
Exits to privileged EXEC mode.
Table 14-2 Partitioning the TCAM Size for ACLs
Task Command
sdm access-list
num-entries
Sets the name of the application region for which you want to
configure the size. You can enter the size as an absolute number
of entries.
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