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Cisco Broadband Cable Command Reference Guide
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Chapter 3 Cisco CMTS Show Commands
show cable load-balance
Weight
Interface bandwidth, in megabits per second (mbps), for the downstream or upstream. The
system uses this value in calculating whether the loads on the interfaces are balanced.
Changing a channel parameter, such as modulation profile or channel width, that affects the
channel’s bandwidth also changes the weight value.
Additional Fields When Displaying Load-Balance Groups
Interval
How often, in seconds, the Cisco CMTS determines the current load on each cable interface in
the load balance group, as configured using the
cable load-balance group interval
command.
Method
Load balancing method being used for this load balance group, as configured using the
cable
load-balance group (global configuration)
command.
Threshold
Thresholds configured for this load balance group, as configured using the
cable load-balance
group threshold
command:
•
Minimum = Minimum difference in the number of cable modems or service flows that can
exist on two interfaces in the group before cable modems are moved between the
interfaces. If the imbalance between interfaces is below this value, cable modems are not
moved. This field contains a value only when the group is configured for the modems or
service-flows method of load balancing. (This value is configured using the
load
minimum
option of the
cable load-balance group threshold
command.)
•
Static = Minimum difference in the percentage of total load that must exist between
interfaces in a load-balance group before the Cisco CMTS performs static load balancing.
When the load between interfaces is greater than this value, cable modems that are in the
process of registering with the CMTS are moved between interfaces until the load
difference is again below this value. (This value is configured using the
load
option of the
cable load-balance group threshold
command.)
•
Enforce = Minimum difference in the percentage of total load that must exist between
interfaces in a load-balance group before the Cisco CMTS performs dynamic load
balancing and begins moving cable modems that are currently online. When the difference
in load between two interfaces falls below this value, the CMTS stops dynamic load
balancing and performs static load balancing. (This value is configured using the
enforce
option of the
cable load-balance group threshold
command.)
•
Ugs = Percentage of the bandwidth that is allocated for Unsolicited Grant Services (UGS)
traffic, such as Voice-over-IP (VoIP), that is in use on an interface because the CMTS
moves cable modems that are online with active UGS service flows. (This value is
configured using the
ugs
option of the
cable load-balance group threshold
command.)
Additional Fields for the target Option
Interface Source
downstream or upstream interface that is part of a cable load balance group. If the
Target field contains a value, this indicates that this source interface is currently
oversubscribed, and that the CMTS is trying to reduce its load by moving cable modems from
the source interface to the target interface.
Table 13
show cable load-balance Field Descriptions (default display) (continued)
Field Description