Specifications

12 ExtremeWare 7.0 Release Notes
Overview
Flow control is disabled by default. To enable 802.3x flow control, use the following command:
enable flow-control ports [<portlist> | all]
To disable 802.3x flow control, use the following command:
disable flow-control ports [<portlist> | all]
Use the all keyword to specify all configured “
3
” series ports.
To see the flow control configuration, use the
show ports configuration command. DSBL
indicates that flow control is disabled on that port. ENBL indicates that flow control is enabled while
auto-negotiation is off for that port. If flow control and auto-negotiation are both enabled, the
negotiated flow control value is displayed.
DiffServ examination is enabled by default on all “
3
” series ports; DiffServ examination is disabled
by default on all other ports.
This feature is not documented in the ExtremeWare 7.0.0 Command Reference Guide or the ExtremeWare
7.0.0 User Guide.
• You can now configure ingress QoS on your “
3
” series module. Ingress QoS is used to prioritize
traffic received on “
3
” series ports.
Congestion can cause ingress traffic to be dropped on oversubscribed “
3
” series I/O modules.
Ingress QoS allows received traffic with different VLAN priority values, different Diffserv codepoints
(IP TOS), or from different VLANs to be routed to up to 8 different ingress queues. This allows for
specified traffic types to be queued separately so they remain unaffected by congestion in the main
ingress queue. Default ingress QoS settings avoid discards of higher priority traffic (identified by
diffserv codepoint or VLAN priority) in the presence of ingress congestion.
To configure ingress QoS, use the following command:
configure qostype ingress priority [ vlan | diffserv | dot1p ] <qos-priority
(0-15)>
The diffserv parameter specifies the priority based on DiffServ information. The default is 3.
The
vlan parameter specifies the priority of VLAN ID-based input queue selection. The default is 2.
The
dot1p parameter specifies the priority based on dot1p information. The default is 1.
The
priority range is 0-15 (15 is the highest priority). Each queue selection criteria must have a
unique priority (no ties).
To restore the default ingress QoS settings, use the following command:
unconfigure qostype ingress priority
To configure a VLAN to use a particular ingress QoS profile, use the following command:
config vlan <vlan name> qosprofile ingress [<IQOS profile> | none]
The vlan name parameter specifies a VLAN name.
The
IQOS profile parameter specifies an ingress QoS profile, such as iqp1.
The
none parameter specifies that traffic from this VLAN is not associated with any ingress queue
based on VLAN ID. This is the default setting.
To view the ingress QoS settings, use the following command:
show qostype ingress priority
To view the real-time ingress statistics, use the following command:
show ports {<portlist>} ingress stats {detail}
The output indicates the following:
— Port Number