Multilink load-threshold – Enterasys Networks X-Pedition XSR CLI User Manual
Page 389
Multilink PPP Commands
XSR CLI Reference Guide 8-119
Syntax of the “no” Form
The no form of this command removes the PPP multilink group:
no multilink-group
Default
Disabled with no specific multilink group assigned
Mode
Interface configuration:
XSR(config-if<xx>)#
Examples
The following example assigns PPP link Serial interface 1/1 to the PPP multilink group 20:
XSR(config-if
The next example also assigns PPP link Serial interface 1/1 to the PPP multilink group 20:
XSR(config-if
multilink load-threshold
This command sets the multilink load threshold which triggers the dialer to add or delete a link
from the multilink bundle. It should be configured on the called side of a connection only. This
command effects Bandwidth‐on‐Demand (BoD) on the XSR.
In determining whether to trigger the dialer, the XSR monitors only the bundle load. The load
threshold provides the dialer with a trigger to add or delete the multilink member link from the
member link bundle. The load is sampled every second and averaged over an 8‐second period.
Triggering is delayed for 10 seconds when the load surpasses or falls below the threshold.
Triggering is generated when:
•
Either the inbound or outbound traffic surpasses the threshold; or
•
Both inbound and outbound traffic fall below the threshold.
No triggering is generated when:
•
The number of member links is already equal to the max‐links value set on the bundle when
the load surpasses the threshold; and
•
The number of the links is already equal to the min‐links value set on the bundle when the load
falls below the threshold.
The
multilink load-threshold
command is the second means by which the XSR controls traffic
via BoD. It is also provided by setting the
multilink min-links
command, which is the first
means by which the XSR controls traffic. A third means used to effect BoD is by use of the
Bandwidth Allocation Protocol (BAP) which is activated by several
ppp bap
commands. BAP
negotiates with the peer to add or drop a link, and can request a phone number from a central
repository with the
ppp bap number
command.
Note: To avoid unexpected behavior, configure this command on one peer only. If it is set on both
peers, their threshold values should match.