3Com WXR100 3CRWXR10095A - Manual (Page 32)

32 N EW F EATURES S UMMARY
set service-profile 11n A new command to configure maximum MPDU and MSDU packet
length, frame aggregation, and the short guard interval for 11n network
traffic.
Definitions of terms used in syntax:
„
Aggregrate MAC Protocol Data Unit (A-MPDU) — Allows multiple
MPDUs to be transmitted as a single PDU frame.
„ Aggregrate MAC Service Data Unit (A-MSDU) — Allows multiple
MSDUs to be transmitted within a single or multiple data MSDUs.
Only MSDUs whose destination address and source address map to
the same receiver address and transmitter address are aggregated.
„
Short Guard Interval — Used to prevent inter-symbol interference
for 802.11n. When enabled, the interval is 400 nanoseconds and it
enhances throughput when multipath delay is low.
Syntax — set service-profile name 11n a-mpdu-max-length [8K |
16K | 32K | 64K] a-msdu-max-length [4K | 8K] frame-aggrega-
tion [msdu | mpdu | all | disable] {mode-na | mode-ng [enable
| disable | required]} short-guard-interval [enable | dis-
able]
„ a-mpdu-max-length
— Configures the length of the MPDU packet in
kilobytes. Select from 8, 16, 32, or 64K.
„ a-msdu-max-length — Configures the length of the MSDU packet in
kilobytes. Select from 4 or 8K.
„ frame-aggregation
— Enables aggregation of MPDU and MSDU
packets. Select either MPDU or MSDU or all. You can also disable this
option.
„ short-guard-interval
— Configure this option to prevent
inter-symbol interference on the 802.11n network.
Defaults — None.
Access — Enabled.
History —Introduced in MSS Version 7.0.
set service-profile
transmit-rates
Configures the data rates supported by MAP radios for a service-profile
SSID. This is an existing command. The only change in MSS 7.0 is to add
support and transmit rates for 11ng and 11na.