This command modifies the per-port maximum number of alias entries in the Node Alias database. Node Alias discovers information about the end systems on a per-port basis. Information from packets from end systems, such as VLANID, source MAC address, source IP address, protocol, etc. are captured in a database that can be queried.
| nodealias | Node Alias feature that maps source IP address, MAC address, host name, and protocol on a per port basis. |
| ports | Designates that specified ports should have the specified maximum number of alias entries applied. |
| port_list | Lists the ports to apply the specified maximum number of alias entries to. Designated as a port list separated by comma (,) or dash (-). |
| all | Specifies that all ports have the specified maximum number of alias entries. |
| maxentries | Designates a maximum number of alias entries per port. |
| entries | The value for the maximum number of aliases entries. The default is 8,192 divided evenly by the number of ports in the switch. |
If no value is specified for the maximum number of alias entries, the default is 8,192 divided evenly by the number of ports in the switch.
The per-port limit can be set up to 8,192 for all switch ports. For example, if the switch has 32 ports, you can configure the maximum limit as 32 × 8,192. However, the switch can only hold a maximum of 8,192 alias entries per slot.
As a result of snooping one frame, the Node Alias feature may create additional entries to facilitate the searching based on finer details, such as protocol type. For example, when a BGP (Border Gateway Protocol) frame is received, two entries are created: one entry with protocol type IP, and another entry with protocol type BGP.
If you change the maximum alias entries to a value that is less than the number entries in the database, the more recent entries are retained.
The following example specifies a maximum of 100 alias entries on all ports:
configure nodealias ports all maxentries 100
This command was first available in ExtremeXOS 22.2.
This command is available on the Summit X450-G2, X460-G2, X670-G2, X770, and ExtremeSwitching X440-G2, X590, X620, X690, X870 series switches.
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