H3C SR6600 Command Reference Manual

Also see for SR6600 SPE-FWM: Configuration guide Configuration guide Configuration guide Command reference Command reference

Contents

97Parametersbandwidth: Maximum available bandwidth of the interface, which ranges from 1 to 1000000 kbps.DescriptionUse the qos max-bandwidth command to configure the maximum available bandwidth of the interface.Use the undo qos max-bandwidth command to restore the default.If the maximum available bandwidth is not configured, the base QoS bandwidth used for CBQcalculation is as follows:• If the interface is a physical one, the actual baudrate or rate applies.• If the interface is an E1, multilink frame relay (MFR) or any other type of logical serial interfaceformed by timeslots or multiple links, the total bandwidth of all member channels/links applies.• If the interface is a template interface, a virtual template (VT) for example, 1000000 kbps applies.• If the interface is a virtual interface, a tunnel, Layer 3 aggregate, HDLC link bundle interface, or RPRlogical interface for example, 0 kbps applies.NOTE:H3C recommends that you configure the maximum available bandwidth to be smaller than the actualavailable bandwidth of a physical interface or logical link.On an MP-group interface or MFR interface configured with the qos max-bandwidth command, AFand EF perform queue bandwidth check and calculation based on the bandwidth specified with the qosmax-bandwidth command. On an MP-group interface or MFR interface without the qosmax-bandwidth command configured, if the sum of sub-channel bandwidth equals to or exceeds thesum of AF bandwidth and EF bandwidth, AF and EF calculate bandwidth based on the actual interfacebandwidth; otherwise, AF and EF calculate bandwidth based on 1 Gbps of bandwidth, and themessage indicating insufficient bandwidth is displayed. In the latter case, the queuing function may failto take effect. You can use the qos reserved-bandwidth command to set the maximum percentage of thereserved bandwidth to the available bandwidth.On tunnel interfaces, subinterfaces, Layer 3 aggregate interfaces, HDLC link bundle interfaces, RPRlogical interfaces, or VT interfaces configured with PPPoE, PPPoA, or PPPoEoA encapsulation, you mustconfigure the qos max-bandwidth command to provide the base bandwidth for CBQ calculation.Examples# Set the maximum available bandwidth of GigabitEthernet 1/0/1 to 16 kbps. system-view[Sysname] interface gigabitethernet 1/0/1[Sysname-GigabitEthernet1/0/1] qos max-bandwidth 16qos reserved-bandwidthSyntaxqos reserved-bandwidth pct percentundo qos reserved-bandwidthViewInterface view, PVC view