Command Reference, Cisco Ios Xe Everest 16.5.1A (Catalyst 3650 Switches - Cisco Catalyst 3650 series Command Reference Manual

rep block port
When you select an alternate port by entering an offset number, this number identifies the downstream neighbor
port of an edge port. The primary edge port has an offset number of 1; positive numbers above 1 identify
downstream neighbors of the primary edge port. Negative numbers identify the secondary edge port (offset
number -1) and its downstream neighbors. Do not enter an offset value of 1 because that is the offset number
of the primary edge port itself.
If you have configured a preempt delay time by entering the rep preempt delay seconds command in interface
configuration mode and a link failure and recovery occurs, VLAN load balancing begins after the configured
preemption time period elapses without another link failure. The alternate port specified in the load-balancing
configuration blocks the configured VLANs and unblocks all other segment ports. If the primary edge port
cannot determine the alternate port for VLAN balancing, the default action is no preemption.
Each port in a segment has a unique port ID. To determine the port ID of a port, enter the show interfaces
interface-id rep detail command in privileged EXEC mode.
Examples The following example shows how to configure REP VLAN load balancing.
Device(config)# interface TenGigabitEthernet 4/1
Device(config-if)# rep block port id 0009001818D68700 vlan 1-100

Command Reference, Cisco IOS XE Everest 16.5.1a (Catalyst 3650 Switches)

328