Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.14.1.0 - Page 1008
a VLT Port Delay Period, the Default VLT Settings Optional, Configuring
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back-up destination {ip address ipv4-address/ mask | ipv6 address ipv6-address/ mask} 5 Repeat Steps 1 to 4 on the VLT peer switch. To set an amount of time, in seconds, to delay the system from restoring the VLT port, use the delay-restore command at any time. For more information, refer to VLT Port Delayed Restoration. Configuring a VLT Port Delay Period To configure a VLT port delay period, use the following commands. 1 Enter VLT-domain configuration mode for a specified VLT domain. CONFIGURATION mode vlt domain domain-id The range of domain IDs from 1 to 1000. 2 Enter an amount of time, in seconds, to delay the restoration of the VLT ports after the system is rebooted. CONFIGURATION mode delay-restore delay-restore-time The range is from 1 to 1200. The default is 90 seconds. Reconfiguring the Default VLT Settings (Optional) To reconfigure the default VLT settings, use the following commands. 1 Enter VLT-domain configuration mode for a specified VLT domain. CONFIGURATION mode vlt domain domain-id The range of domain IDs is from 1 to 1000. 2 After you configure a VLT domain on each peer switch and connect (cable) the two VLT peers on each side of the VLT interconnect, the system elects a primary and secondary VLT peer device. To configure the primary and secondary roles before the election process, use the primary-priority command. Enter a lower value on the primary peer and a higher value on the secondary peer. If the primary peer fails, the secondary peer (with the higher priority) takes the primary role. If the primary peer (with the lower priority) later comes back online, it is assigned the secondary role (there is no preemption). 3 (Optional) When you create a VLT domain on a switch, Dell EMC Networking OS automatically creates a VLT-system MAC address used for internal system operations. VLT DOMAIN CONFIGURATION mode system-mac mac-address mac-address To explicitly configure the default MAC address for the domain by entering a new MAC address, use the system-mac command. The format is aaaa.bbbb.cccc. Also, reconfigure the same MAC address on the VLT peer switch. Use this command to minimize the time required for the VLT system to synchronize the default MAC address of the VLT domain on both peer switches when one peer switch reboots. 1008 Virtual Link Trunking (VLT)
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