User guide

1-4 B
LACK
D
IAMOND
U
SER
G
UIDE
B
LACK
D
IAMOND
O
VERVIEW
• Simple Network Management Protocol (SNMP) support
• Remote Monitoring (RMON)
• Traffic mirroring for all ports
For more information on BlackDiamond components, refer to the BlackDiamond
Hardware Installation Guide
.
F
ULL
-D
UPLEX
The BlackDiamond provides full-duplex support for all ports. Full-duplex allows frames
to be transmitted and received simultaneously and, in effect, doubles the bandwidth
available on a link. All 10/100 Mbps ports on the BlackDiamond autonegotiate for half-
or full-duplex operation.
L
OAD
S
HARING
Load sharing with the BlackDiamond allows you to increase bandwidth and resilience
by using a group of ports to carry traffic in parallel between systems. The sharing
algorithm allows the BlackDiamond system to use multiple ports as a single logical
port. For example, VLANs see the load-sharing group as a single virtual port. The
algorithm also guarantees packet sequencing between clients.
For information on load sharing, refer to Chapter 3.
V
IRTUAL
LAN
S
(VLAN
S
)
The BlackDiamond has a VLAN feature that enables you to construct your broadcast
domains without being restricted by physical connections. Up to 255 VLANs can be
defined on the BlackDiamond. A VLAN is a group of location- and topology-
independent devices that communicate as if they were on the same physical local area
network (LAN).
Implementing VLANs on your network has the following three advantages:
• It helps to control broadcast traffic. If a device in VLAN marketing transmits a
broadcast frame, only VLAN marketing devices receive the frame.
• It provides extra security. Devices in VLAN marketing can only communicate with
devices on VLAN sales using routing services.