Commands applied per ASIC

The following commands effect all ports on an ASIC, when you configure one of these commands on a port, all ports connected to that ASIC will have the same command applied. For example on the WS-X6724-SFP card, two ASIC’s are present with one ASIC dedicated to ports 1-12 and the second ASIC dedicated to ports 13-24. So using this example if one of the commands below is configured on port 7, ports 1-12 will be configured with the same command and parameters. All commands shown below are interface commands.

wrr-queue queue-limit
Configures the size of each queue (Queue Depth)

wrr-queue bandwidth
(except Gigabit Ethernet LAN ports)
Configures the time/BW used by WRR Scheduling to service each queue (not PQ)

wrr-queue threshold
Configures the tail drop threshold, used when WRED not configured

wrr-queue random-detect
Enables WRED on a queue, which disables tail drop. use the no form of this command to return to tail drop.

wrr-queue random-detect min-threshold
wrr-queue random-detect max-threshold
Enables the minimum and maximum percentages per queue per threshold, where CoS values are assigned to a queue and threshold number using ‘wrr-queue cos-map

wrr-queue cos-map
Maps the CoS value of a packet to a standard queue. The CoS is derived from the Internal DSCP value using the DSCP-COS map.

priority-queue cos-map
Maps the CoS value of a packet to the PQ. The CoS is derived from the Internal DSCP value using the DSCP-COS map.

rcv-queue random-detect

rcv-queue queue-limit

rcv-queue cos-map

rcv-queue threshold

Simon Birtles

I have been in the IT sector for over 20 years with a primary focus on solutions around networking architecture & design in Data Center and WAN. I have held two CCIEs (#20221) for over 12 years with many retired certifications with Cisco and Microsoft. I have worked in demanding and critical sectors such as finance, insurance, health care and government providing solutions for architecture, design and problem analysis. I have been coding for as long as I can remember in C/C++ and Python (for most things nowadays). Locations that I work without additional paperwork (incl. post Brexit) are the UK and the EU including Germany, Netherlands, Spain and Belgium.