Allied Telesis AT-S63 - Manual (Page 47)

AT-S63 Management Software Web Browser User’s Guide
Section I: Basic Operations 47
Disabled - Backpressure is disabled. This is the default.
Flow Control/Back Pressure Limit
Use this parameter to specify the threshold for flow control or
backpressure. The threshold is specified in cells. A cell equals 128
bytes. The range is 1 to 7935. The default is 7935 cells.
HOL Blocking
HOL blocking sets a threshold on the utilization of a port’s egress
queue. When the threshold for a port is exceeded, the switch signals
other ports to discard packets to the oversubscribed port. The
threshold is specified in number of cells. A cell is 128 bytes. The range
is 1 to 8191. The default is 682.
Broadcast Rate Limiting
Use this parameter to enable or disable ingress broadcast packet
limits. Possible settings are:
Enabled - Broadcast packet ingress rate limiting is enabled. To set the
rate limit, use the Broadcast Rate parameter.
Disabled - Broadcast packet ingress rate limiting is disabled. This is
the default.
Broadcast Rate
Use this parameter to set the broadcast rate limit in packets per
second. The range is 0 to 262143. The default is 262143.
Unknown Unicast Rate Limiting
Use this parameter to enable or disable unknown ingress unicast
packet limits. Possible settings are:
Enabled - Unknown unicast packet ingress rate limiting is enabled. To
set the rate limit, use the Unknown Unicast Rate parameter.
Disabled - Unknown unicast packet ingress rate limiting is disabled.
This is the default.
Unknown Unicast Rate
Use this parameter to set the unknown unicast rate limit in packets per
second. The range is 0 to 262143. The default is 262143.
Multicast Rate Limiting
Use this parameter to enable or disable ingress multicast packet limits.
Possible settings are:
Enabled - Multicast packet ingress rate limiting is enabled. To set the
rate limit, use the Multicast Rate parameter.
Disabled - Multicast packet ingress rate limiting is disabled. This is the
default.