Dell S4048T, Руководство по настройке

Страница: 1124 / 1277

• Non-VLT Sync — Entries learned on non-VLT interfaces are synced on both VLT peers.
• Tunneling — Control information is associated with tunnel traffic so that the appropriate VLT peer can
mirror the ingress port as the VLT interface rather than pointing to the VLT peer’s VLTi link.
• Statistics and Counters — Statistical and counter information displays IPv6 information when applicable.
• Heartbeat — You can configure an IPv4 or IPv6 address as a backup link destination. You cannot use an
IPv4 and an IPv6 address simultaneously.
VLT Port Delayed Restoration
When a VLT node boots up, if the VLT ports have been previously saved in the start-up configuration, they are
not immediately enabled.
To ensure MAC and ARP entries from the VLT per node are downloaded to the newly enabled VLT node, the
system allows time for the VLT ports on the new node to be enabled and begin receiving traffic.
The
delay-restore
feature waits for all saved configurations to be applied, then starts a configurable timer.
After the timer expires, the VLT ports are enabled one-by-one in a controlled manner. The delay between
bringing up each VLT port-channel is proportional to the number of physical members in the port-channel.
The default is 90 seconds.
To change the duration of the configurable timer, use the
delay-restore
command.
If you enable IGMP snooping, IGMP queries are also sent out on the VLT ports at this time allowing any
receivers to respond to the queries and update the multicast table on the new node.
This delay in bringing up the VLT ports also applies when the VLTi link recovers from a failure that caused the
VLT ports on the secondary VLT peer node to be disabled.
Virtual Link Trunking (VLT) 1124