Enterasys Networks VH-8G-L3 ユーザーズマニュアル
17
9033705-01
Broadcast storms consist of broadcast packets that flood
and/or are looped on a network causing noticeable
performance degradation and in extreme cases, network
failure. Broadcast storms can be caused by malfunctioning
NICs, bad cable connections and applications or protocols
that generate broadcast traffic, among others.
and/or are looped on a network causing noticeable
performance degradation and in extreme cases, network
failure. Broadcast storms can be caused by malfunctioning
NICs, bad cable connections and applications or protocols
that generate broadcast traffic, among others.
Broadcast storms have long been a concern for network
administrators with routers traditionally being used to prevent
their occurrence, and if that failed, limit their scope.
However, with the advent of VLANs, switches are now able
to limit broadcast domains better and cheaper than routers.
The VH-8G-L3 has broadcast sensors and filters built into
each port to control broadcast storms.
administrators with routers traditionally being used to prevent
their occurrence, and if that failed, limit their scope.
However, with the advent of VLANs, switches are now able
to limit broadcast domains better and cheaper than routers.
The VH-8G-L3 has broadcast sensors and filters built into
each port to control broadcast storms.
IP Routing
IP is responsible for getting packets to the destination
specified in the destination address. The task of determining
how to get a packet from the source to the destination is
referred to as routing.
specified in the destination address. The task of determining
how to get a packet from the source to the destination is
referred to as routing.
The VH-8G-L3 allows the creation of IP subnets and can
perform IP routing between them. Each IP subnet
corresponds to an IEEE 802.1Q VLAN, previously defined
on the Switch.
perform IP routing between them. Each IP subnet
corresponds to an IEEE 802.1Q VLAN, previously defined
on the Switch.
Factory Defaults
Table 1-1 lists the default settings for the Switch
configuration parameters. Each parameter can be changed
via the console menus or Telnet.
configuration parameters. Each parameter can be changed
via the console menus or Telnet.
Parameter
Default
Value
Load Mode
Ethernet
Switch Operation Mode
Layer 2
Configuration Update
Disabled
Firmware Update
Disabled