Avaya P550 manual Rate Limit Rate, Burst Size, Pace Priority

Configuring the Cajun Switch Using the P550/P880 Manager

Table 2-4. Fast Ethernet (10/100) Port Parameters

Parameter	Definition
Rate Limit	Prevents the switch from overwhelming the output
Mode	buffer on lower-speed ports by placing a threshold
	on the percentage of port traffic that can be flooded
	packets (unknown unicasts and multicasts). You
	can optionally include known multicast packets in
	this percentage to further decrease the possibility of
	the port’s output buffer being overwhelmed.
Rate Limit Rate	Determines the percentage of a port’s forwarded
	traffic that can be unknown unicast and multicast
	(flooded). Lower this value if the port has overflow
	problems.
Rate Limit	Determines the limit of packets allowed in a single
Burst Size	burst. Accepted values are 1 to 2048. For Fast
	Ethernet ports, set this value lower than 1024
	(output buffer capacity). Lower this value if the
	port has overflow problems.
PACE Priority	PACE Priority Mode determines if the port
Mode	detects 3Com’s proprietary PACE format as
	packets pass through the port. PACE enables a
	packet’s priority to be set at the adapter.
	Higher priority packets move through the
	switch before lower packets. PACE Priority
	Mode is enabled by default. To disable PACE
	Priority Mode, select Disable from the PACE
	Priority Mode pull-down menu.

3.In the Name field, enter a port name.

4.If this is an end-station port, from the Category pull-down menu, select User Port. For trunk ports, select Service Port.

5.From the Speed Mode pull-down menu, select a speed (10 Mbps or 100 Mbps) if you want to set the port speed manually. If you set the port to auto-negotiate, this setting is ignored.

*Note: This feature is only available for 10/100 TX ports.

6.From the Duplex Mode pull-down menu, select a mode

(Half-duplexor Full-duplex) if you want to set the port’s duplex mode manually. If you set the port to auto-negotiate, this setting is ignored.

Cajun P550/P880 Manager User Guide 2-27