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Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Wireless
Wireless-G Ethernet Bridge with 5-Port Switch
The port1 to port6 checkbox is disabled so that the user can always use port1 as a back door to access the
web config page when the port based VLAN is enabled.
802.1q Port VLAN Setting - Default VID Is used when 802.1q is enabled but input packet does not have a VLAN
tag. In this case, the Default VID will be used as the packet's VLAN tag.
Even if the input packet has a VLAN tag, user can still enabled the Force VID to change the VLAN tag of the
packet to the Default VID of the inport.
New VLAN ID - This is for adding new VLAN ID and the member tag into the VLAN table. VLAN ID can be any
integer between 1-4095. The maximum VLAN table size is 64. The member tag determine if a port is a
member of the VLAN and how to modify the packet when it exits the switch.
UnMod - This port is a member of this VLAN, packets will exit unmodified.
Drop - This port is not a member of this VLAN.
UnTag - This port is a member of this VLAN, packets will exit with the VLAN tag removed.
Tag - This port is a member of this VLAN, packets will exit this port with the VLAN tag. The VLAN tag can be
either the original one coming with the packet or the default VVID of the inport.
802.1q VLAN Table - This is the entire VLAN table. The user can select an entry and click
Delete VLAN Entry
to remove this VLAN ID from the table.
Click the
Apply Port Setting
button to save your settings per port. Click the
Cancel
button to cancel your
changes. Click the
Refresh
button to refresh your screen. Click the
Help
button for additional on-screen
information.
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Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Wireless
Wireless-G Ethernet Bridge with 5-Port Switch
RMON Statistics
This screen is used to view the RMON counters for each port.
Port Selection - Select the port to display the packets statistics.
EtherStatsDropEvents - The total number of events in which packets were dropped by the probe due to lack of
resources. Note that this number is not necessarily the number of packets dropped; it is just the number of times
this condition has been detected.
EtherStatsOctets - The total number of octets(bytes) of data (including those in bad packets) received on the
network (excluding framing bits but including FCS octets). This object can be used as a reasonable estimate of
ethernet utilization.
EtherStatsPkts - The total number of packets (including bad packets, broadcast packets, and multicast packets)
received.
EtherStatsBroadcastPkts - The total number of good packets received that were directed to the broadcast
address. Note that this does not include multicast packets.
EtherStatsMulticastPkts - The total number of good packets received that were directed to a multicast address.
Note that this number does not include packets directed to the broadcast address.
EtherStatsCRCAlignErrors - The total number of packets received that had a length (excluding framing bits, but
including FCS octets) of between 64 and 1518 octets, inclusive, but but had either a bad Frame Check Sequence
(FCS) with an integral number of octets (FCS Error) or a bad FCS with a non-integral number of octets (Alignment
Error).
EtherStatsUndersizePkts - The total number of packets received that were less than 64 octets long (excluding
framing bits, but including FCS octets) and were otherwise well formed.
EtherStatsOversizePkts - The total number of packets received that were longer than 1518 octets (excluding
framing bits, but including FCS octets) and were otherwise well formed.
EtherStatsFragments -The total number of packets received that were less than 64 octets in length (excluding
framing bits but including FCS octets) and had either a bad Frame Check Sequence (FCS) with an integral number
of octets (FCS Error) or a bad FCS with a non-integral number of octets (Alignment Error). Note that it is entirely
normal for etherStatsFragments to increment. This is because it counts both runts (which are normal
occurrences due to collisions) and noise hits.
EtherStatsJabbers - The total number of packets received that were longer than 1518 octets (excluding framing
bits, but including FCS octets), and had either a bad Frame Check Sequence (FCS) with an integral number of
Figure 7-19: RMON Statistics Tab
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37
Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Wireless
Wireless-G Ethernet Bridge with 5-Port Switch
Octets (FCS Error) or a bad FCS with a non-integral number of octets (Alignment Error). Note that this definition of
jabber is different than the definition in IEEE-802.3 section 8.2.1.5 (10BASE5) and section 10.3.1.4 (10BASE2).
These documents define jabber as the condition where any packet exceeds 20 ms. The allowed range to detect
jabber is between 20 ms and 150 ms.
EtherStatsCollisions - The best estimate of the total number of collisions on this Ethernet segment. The value
returned will depend on the location of the RMON probe. Section 8.2.1.3 (10BASE-5) and section 10.3.1.3
(10BASE-2) of IEEE standard 802.3 states that a station must detect a collision, in the receive mode, if three or
more stations are transmitting simultaneously. A repeater port must detect a collision when two or more stations
are transmitting simultaneously. Thus a probe placed on a repeater port could record more collisions than a probe
connected to a station on the same segment would. Probe location plays a much smaller role when considering
10BASE-T. 14.2.1.4 (10BASE-T) of IEEE standard 802.3 defines a collision as the simultaneous presence of
signals on the DO and RD circuits (transmitting and receiving at the same time). A 10BASE-T station can only
detect collisions when it is transmitting. Thus probes placed on a station and a repeater, should report the same
number of collisions. Note also that an RMON probe inside a repeater should ideally report collisions between the
repeater and one or more other hosts (transmit collisions as defined by IEEE 802.3k) plus receiver collisions
observed on any coax segments to which the repeater is connected.
EtherStatsPkts64Octets - The total number of packets (including bad packets) received that were 64 octets in
length (excluding framing bits but including FCS octets).
EtherStatsPkts65to127Octets - The total number of packets (including bad packets) received that were between
65 and 127 octets in length inclusive (excluding framing bits but including FCS octets).
EtherStatsPkts128to255Octets - The total number of packets (including bad packets) received that were between
128 and 255 octets in length inclusive (excluding framing bits but including FCS octets).
EtherStatsPkts256to511Octets - The total number of packets (including bad packets) received that were between
256 and 511 octets in length inclusive (excluding framing bits but including FCS octets).
EtherStatsPkts512to1023Octets - The total number of packets (including bad packets) received that were
between 512 and 1023 octets in length inclusive (excluding framing bits but including FCS octets).
EtherStatsPkts1024to1518Octets - The total number of packets (including bad packets) received that were
between 1024 and 1518 octets in length inclusive (excluding framing bits but including FCS octets).
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38
Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Port Mirroring
Wireless-G Ethernet Bridge with 5-Port Switch
Port Mirroring
This screen shows the status of each port and allows you to configure the port mirroring settings for the manage
switch feature. The information here is for the wired LAN ports. For wireless status and packet counts, please
refer to the Wireless Status page.
Port Information Table
Ports 1 through 5 are the wired ports. Port 6 is the wireless port.
Link - If a port is connected, then the status is up, otherwise it is down.
Duplex - The auto-negotiation result of duplex mode, can be full duplex or half duplex. Full duplex mode will allow
packets sent in both way simutaneously and results in 2x througput than half duplex mode.
Speed - The auto-negotiation result of speed. It can be 10Mbps or 100Mbps.
Rx Packets - Received packets count
Tx Packets - Transmit packets count
Port Mirroring Setting
Port mirroring will duplicate traffic from the
From Port
to the
To Port
. This is good for debugging network
problems.
Type - Disable will turn off the monitor function.
Monitor egress
will only monitor traffic exiting the from that
specific port.
Monitor both
will monitor both directions of traffic in the From Port.
From Port - The port to be mirrored.
To Port - The port where the traffic is mirrored to.
Click the
Apply
button to save your changes. If your page doesn’t automatically refresh itself, then click the
Refresh
button of your web browser. Click the
Cancel
button to cancel your changes. Click the
Help
button for
additional on-screen information.
Figure 7-20: Port Mirroring Tab
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39
Chapter 7: Using the Wireless-G Ethernet Bridge Web-based Utility
Access List
Wireless-G Ethernet Bridge with 5-Port Switch
Access List
This screen is used to configure the access list settings between wireless and switch ports.
Access List Type - An Access List is a list of source MAC addresses. If a packet is coming from a wireless to a LAN
port or vice versa, this device will check if the source MAC address of the packet matches any entry in this list.
And use the match result to pass or drop this packet. However, packets from LAN port to LAN port will not be
checked. If you click
Disable
, this will disable all access list functions. If you click
Accept
, only packets that
match an entry on the list will be passed. All others will be dropped.
Click the
Apply Global Setting
button to save your global settings.
Block - Packets that matches an entry on the list will be dropped. All others will be passed.
Block List - The list of source MAC address that will be blocked when mode is Block.
To block a port, enter the MAC address in the
New Block Entry
field, and click the
Add Block Entry
button. To
unblock the port, enter the MAC address in the
New Block Entry
field, and click the
Delete Selected Entry
button.
Pkt Count - the number of packets dropped with this blocked MAC address.
To accept a port, enter the MAC address in the
New Accept Entry
field, and click the
Add Accept Entry
button. To
unaccept the port, enter the MAC address in the
New Accept Entry
field, and click the
Delete Accept Entry
button.
Accept List - The list of source mac address which will be accepted when the mode is
Accept
.
Pkt Count - The number of packets accepted with this
Accept
MAC address.
Accept Count - Counter for packets passing through this device when access list is enabled.
Drop Count - Counter for packets dropped by this device when access list is enabled.
Click the
Refresh
button to refresh the screen. Click the
Help
button for additional on-screen information.
Figure 7-21: Access List Tab
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