system router resources

To configure the system router resources, use the system router resources command in Global Configuration mode. To return to the default, use the no form of this command.

Syntax

system router resources [ip-entries max-number]  [ipv6-entries max-number]  [ipm-entries max-number]   [ipmv6-entries max-number]     [vlan-mapping-entries max-number] no system router resources

Parameters

• ip-entries max-number—(Optional) The maximum number of IPv4 entries.
• ipv6-entries max-number—(Optional) The maximum number of IPv6 entries.
• ipm-entries max-number—(Optional) The maximum number of IPv4 multicast entries.
• ipmv6-entries max-number—(Optional) The maximum number of IPv6 multicast entries.
• vlan-mapping-entries max-number —(Optional) The maximum number of VLAN Mapping entries.

Default Configuration

• ip-entries— 4096.
• ipv6-entries—
• ipm-entries—
• ipmv6-entries—
• vlan-mapping-entries — 64.

Command Mode

Global Configuration mode

User Guidelines

Use the system router resources command to enter new settings for routing entries. After entering the command, the current routing entries configuration will be displayed, and the user will be required to confirm saving the new setting to the startup-configuration and to reboot the system.

When this command is included in a configuration file that is downloaded to the device, if it is downloaded to the running configuration file, the command will be rejected. If it downloaded to the startup configuration file, the device will not be automatically rebooted. The new settings will be used after the device is rebooted manually.

Data Validation:

If the new settings exceed the maximum number of routing entries, the command is rejected and a message is displayed to the user.

If the new settings are fewer than the currently in-use routing entries, a confirmation message is displayed to the user (before the save confirmation message).

Use the no system router resources command to restore the default settings.

The following table displays the conversion between logical entities to HW entries:

Logical Entity	IPv4
IP Neighbor	1 entry
IP Address	2 entries
IP Remote Route	1 entry
IPM Group (*,G) or (S,G)	2 entries

Logical Entity	IPv6 (RouterTCAM)
IP Neighbor	4 Entries
IP Address	8 entries
IP Remote Route	4 Entries
On-Link-Prefix	4 Entries
IPM Group (*,G) or (S,G)	8 entries

Examples

Example 1

The following example defines the supported number of IPv4 routing entries.

switchxxxxxx(config)# system router resources ip-enries 256   The maximal number of IPv4 and IPv6 Routing Entries is 3072. The number of Non-IP Entries is 3096.   In-Use  Reserved (Current)  Reserved (New)   ------  ------------------  --------------   IPv4 Entries                   232        1024               256   Number of Routes           20   Number of Neighbors        12   Number of Interfaces      100   IPv6 Entries                   233        1024                32   Number of Routes           20   Number of Neighbors        12   Number of Interfaces      100   Number of On-Link Prefixes  1   IPv4 Multicast Entries           12           1024                   1024   Number of Multicast Routes       6   IPv6 Multicast                   40           1024                   1024   Number of Multicast Routes       5   VLAN Mapping Entries             48            64                       64   Setting the new configuration of route entries requires saving the running-configuration file to startup-configuration file and rebooting the system, do you want to continue? (Y/N) [N] Y

Example 2

The following example defines the supported number of IPv4 and IPv6 routing entries. In the example, the configured router entries are less than the router entries which are currently in use. Using this configurations means that the system will not have enough resources for the running again in the existing network:

switchxxxxxx(config)# system router resources ip-entries 128 ipv6-entries 32   The maximal number of IPv4 Routing entries and IPv6 Routing Entries is 3072. The number is Non-IP Entries is 3096.   In-Use   Reserved (Current)  Reserved (New)   ------   ------------------  --------------   IPv4 Entries                   232          1024               128   Number of Routes           20   Number of Neighbors        12   Number of Interfaces      100   IPv6 Entries                  1024          1024                32   Number of Routes           20   Number of Neighbors        12   Number of Interfaces      100   Number of On-Link Prefixes  1   IPv4 Multicast Entries           12           1024                   1024      Number of Multicast Routes       6   IPv6 Multicast                   40           1024                   1024   Number of Multicast Routes       5   VLAN Mapping Entries             48            64                       64   Router Resources Commands                                                                                                                                                                       51       The new configuration of route entries is less than the route entries which are currently in use by the system, do you want to continue (note that setting the new configuration of route entries requires saving the running-configuration file to startup-configuration file and rebooting the system)? (Y/N) [N] Y