Qtech QSW-3900-48-SFP-DC [182/245] Qos configuration

QTECH Software Configuration Manual

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(3) WRR with maximum delay

Compared with WRR, WRR with maximum delay can guarantee the maximum time from packets entering

superior queue to leaving it will not beyond the configured maximum delay.

14.1.11 cos-map

This is a relationship of hardware priority queue and priority of IEEE802.1p protocol

System will map between 802.1p protocol priority of packet and hardware queue priority. For each packet,

system will map it to specified hardware queue priority according to 802.1p protocol priority of packet.

14.1.12 Flow mirror

Flow mirror means coping specified data packet to monitor interface to detect network and exclude failure.

14.1.13 Statistics based on flow

Statistics based on flow can statistic and analyse the packets customer interested in.

14.1.14 Copy packet to CPU

User can copy specified packet to CPU according to the need of its QoS strategies.

System realizes QoS function according to accessing control list, which includes : flow monitor, interface

speed limit, packet redirection, priority mark, queue scheduler, flow mirror, flow statistics and coping packet to CPU.

14.2 QOS Configuration

14.2.1 QoS Configuration list

QOS Configuration includes :

· Packet redirection configuration

· Priority configuration

· Queue-scheduler configuration

· The cos-map relationship of hardware priority queue and priority of IEEE802.1p protocol

· Flow mirror configuration

· Flow statistic configuration

· Define corresponded ACL before configuring QoS.

14.2.2 Packet redirection configuration

Packet redirection configuration is redirecting packet to be transmitted to some egress.

Use following command to configure it.

Configure it in interface configuration mode.

Redirection

traffic-redirect { [ ip-group { access-list-number | access-list-name } [ subitem subitem ] ]

[ link-group { access-list-number | access-list-name } [ subitem subitem ] ] } } { interface

interface-num }

Cancel redirection