Reference Guide

1522 | Virtual Link Trunking (VLT)
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• if the Peer VLT device was up at the time the VLTi link failed to the time when it
was restored.
lacp ungroup member-independent
Enable BMP boot for the device connected to the LACP LAG or by a VLT peer
device.
Syntax lacp ungroup member-independent {vlt | port-channel port-channel-id}
Defaults
Not configured.
Command Modes
CONFIGURATION
Usage
Information
LACP on VLT ports (on a VLT switch or access device), which are members of the
virtual link trunk, is not brought up until the VLT domain is recognized on the access
device.
During boot-up in a stacking configuration, the system must be able to reach the
DHCP server with the image and configuration image. During bootup, only untagged
DHCP requests are sent to the DHCP server to receive an offer on static LAGs
between switches. The DHCP server must be configured to start in jumpstart mode. If
switches are connected using LACP port-channel like the VLT peer and ToR, use the
port-channel parameter on the TOR side of the configuration to allow member ports
of a completely un-grouped lacp port-channel to inherit vlan membership of that port
channel to ensure untagged packets sent by a VLT peer device reach the DHCP server
located on the TOR. To ungroup the vlt and port-channel configurations, use the
no
lacp ungroup member-independent vlt
command on a VLT port channel, depending on
whether the port channel is VLT or non-VLT..
Command
History
peer-link
Configure the peer-link for VLT
Syntax
peer-link
Defaults
Not configured.
Command Modes
VLT DOMAIN
Version 8.3.19.0 Introduced on S4820T
Version 8.3.12.0 Added port-channel parameter.
Version 8.3.8.0 Introduced on S4810