Dhl Num Pre-Emption-Time - Alcatel-Lucent OmniSwitch 6850-48 Cli Reference Manual

dhl num pre-emption-time

Configures the pre-emption timer for the DHL session. A pre-emption timer is a recovery-delay timer that
is used to delay the switchover of VLANs to their primary links. It is the delay in the resumption of traffic
when a link that is down is brought up.
dhl num dhl_num pre-emption-time num
Syntax Definitions
dhl_num
num
Defaults
parameter
num
Platforms Supported
OmniSwitch 6400, 6850, 6850E, 6855, 9000E
Usage Guidelines
•
Pre-emption timer is applicable only when a failed port is brought up. If both ports are down, the pre-
emption timer is activated only when the second port is brought up.
•
If the pre-emption value is set to 0, then there will be no delay in the VLANs being moved back to their
primary link.
•
If a link fails when the pre-emption value is active, that is when the pre-emption value is not equal to 0,
then the time will be halted.
•
When the pre-emption timer is active for a particular link and port and if the other port goes down, then
the VLANs of the port that is down is automatically moved to the port for which the pre-emption timer
is active.
•
When DHL ports spanned across the NIs or DHC ports are on the same NI but data port is on different
NI, it is advised to configure mac-flush mechanism (either Raw/MVRP) for faster convergence.
Examples
-> dhl num 1 pre-emption-time 40sec
Release History
Release 6.4.4; command was introduced.
page 8-68
Specifies the number of the DHL session.
Specifies the number of seconds for the delay in the switchover of
VLANs to their primary links. The valid range is 0 - 600.
default
30 seconds
Link Aggregation Commands
OmniSwitch CLI Reference Guide June 2012