User's Manual

Table Of Contents
Chapter 4 - Operation and Administration
IEE
byt e is 1522 bytes.
The he
Ethern
manag
The Ethernet Counters include the following statistics:
Tot ed
from cludes both invalid frames (with errors)
and valid frames (without errors).
Tra y the
un ernet port. These are generally frames received from the
wireless side, but also include frames generated by the unit itself.
4.2.5.1.2 WL
The l
bri management frames. After a
unicast data frame is transmitted, the unit waits for an acknowledgement (ACK)
as
ack CK is not received after a predefined time, which is
determined by the Maximum Cell distance parameter, the unit retransmits the
ret
det y the Number of HW Retries parameter, the frame is dropped.
Each packet to be transmitted to the wireless link is transferred to one of three
que igh queue have the highest
priority for transmission, and those in the Low queue have the lowest priority.
The
emptie s in the Medium queue will be sent. Finally, when both the
High and Medium queues are empty, the packets in the Low queue will be sent.
Data p e
selecte hem before the MIR/CIR mechanism (for more information see
section 4.2.6.6.3
E 802.1 Ethernet frame that can be accepted from the Ethernet port is 1518
es. For tagged IEEE 802.1Q frames the maximum siz
unit transmits valid data frames received from the wireless medium to t
et port, as well as internally generated frames, such as responses to
ement queries and pings received via the Ethernet port.
al received frames via Ethernet: The total number of frames receiv
the Ethernet port. This counter in
nsmitted wireless to Ethernet: The number of frames transmitted b
it to the Eth
AN Counters
unit submits data frames received from the Ethernet port to the interna
dge, as well as self generated control and wireless
message from the receiving unit. Some control and wireless management frames,
well as broadcast and multicast frames sent to more than one unit, are not
nowledged. If an A
frame until an ACK is received. If an ACK is not received before the number of
ransmissions has reached a maximum predefined number, which is
ermined b
ues: Low, Medium and High. Packets in the H
packets in the High queue will be transmitted first. When this queue is
d, the packet
ackets are routed to either the High or Low queue, according to the queu
d for t
).
Bro
Control and wireless management frames generated in the unit are routed to the
An
Bre ded
adcasts/multicasts are routed to the Medium queue (applicable only for AU).
High queue.
y frame coming from the Ethernet port, which is meant to reach another
ezeACCESS 4900 unit via the wireless port (as opposed to messages inten
BreezeACCESS 4900 System Manual
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