configure elsm ports hold-threshold
ExtremeWare XOS 11.5 supports only the Summit X450 family of switches and the BlackDiamond 8800 series switch.
ExtremeWare XOS 11.5 Command Reference Guide
569
configure elsm ports hold-threshold
configure elsm ports <portlist> hold-threshold <hold_threshold>
Description
Configures the number of Hello+ messages required by the specified ELSM-enabled ports to transition
from the Down-Wait state to the Up state.
Syntax Description
Default
The default is 2 Hello+ messages.
Usage Guidelines
The port begins in the Down state, so the first received Hello+ message transitions the ELSM-enabled
port from the Down state to the Down-Wait state. After that transition, the configured hold-threshold
value determines the number of Hello+ messages required to transition from Down-Wait state to the Up
state.
The ELSM hold threshold determines the number of Hello+ messages the ELSM peer port must receive
to transition from the Down-Wait state to the Up state. For example, a threshold of 1 means the ELSM
port must receive at least one Hello+ message to transition from the Down-Wait state to the Up state.
After the down timer expires, the port checks the number of Hello+ messages against the hold
threshold. If the number of Hello+ messages received is greater than or equal to the configured hold
threshold, the ELSM receive port moves from the Down-Wait state to the Up state.
If the number of Hello+ messages received is less than the configured hold threshold, the ELSM receive
port moves from the Down-Wait state back to the Down state and begins the process again.
If you modify the hold threshold on one port, Extreme Networks recommends that you use the same
hold threshold value on its peer port.
You configure the hold threshold on a per-port basis, not on a per-switch basis.
Example
The following command specifies that two Hello+ messages are required for the ELSM receive ports
configured on slot 2, ports 1-2, to transition from the Down-Wait state to the Up state:
configure elsm hold-threshold 2 ports 2:1-2:2
portlist
Specifies the port or ports for which the ELSM hold threshold should be
configured.
hold_threshold
Specifies the number of Hello+ messages required to transition from the Down-
Wait state to the Up state. The default is 2 messages, and the range is 1 to 3
messages.
