BelAir20E User Guide
Operating in High Capacity and Interference Environments
April 2, 2012
Confidential
Document Number BDTM02201-A01 Standard
Traffic Priority
Based on
Modulation Rate
A Wi-Fi AP sorts traffic according to priority and transmits it by priority in
order of arrival. Different QOS schedulers (EDCA, LSPQ, SPQ) result in
different performance for the various priorities.
This feature applies a priority based on modulation rate on top of the QOS
priority. It tries to give clients equal amounts of air-time instead of equal
numbers of packets. The result in HCI environments is that more packets are
sent to clients who are using higher modulation rates, increasing the effective
bandwidth.
For details, see
“Rate Aware Fairness” on page 78
No SSID on
Egress Down
When this feature is enabled, all SSIDs on a radio can be modified with a text
string, such as
outOfService
, when a node loses its egress connection. In HCI
environments, this feature prevents traffic from being uselessly directed to a
node which can not successfully forward it.
This feature can be enabled or disabled on per radio basis. The text string can
be configured on a per-SSID basis.
The relevant commands are:
•
/interface/wifi-<n>-<m>/set ap-oos-broadcast
{enabled|disabled} [option {replace|prepend}]
and
/interface/
wifi-<n>-<m>/set ssid <ssid-number> ap-oos-identifier
<oos_string>
described in detail in
“Out-of-service Advertising” on
.
•
/system/set system-egress-point {yes {direct|indirect
gateway-ip <ip_addr>}|no}
Ethernet Port
Statistics
Ethernet port statistics are available for the BelAir200, BelAir100, BelAir100C
and BelAir100T. In HCI environments, these statistics measure the traffic
passing through the node if its Ethernet port is connected to an external
network.
The relevant command is
/interface/eth-1-1/show statistics
, described
in detail in the
Troubleshooting Guide
.
The output includes:
• received octets, unicast packets, multicast packets, broadcast packets and
discarded packets
• transmitted octets, unicast packets, multicast packets and broadcast packets