Microsoft ES4612 Benutzerhandbuch
Introduction
1-6
1
Multicast Routing – Routing for multicast packets is supported by the Distance
Vector Multicast Routing Protocol (DVMRP) and Protocol-Independent Multicasting -
Dense Mode (PIM-DM). These protocols work in conjunction with IGMP to filter and
route multicast traffic. DVMRP is a more comprehensive implementation that
maintains its own routing table, but is gradually being replacing by most network
managers with PIM, Dense Mode and Sparse Mode. PIM is a very simple protocol
that uses the routing table of the unicast routing protocol enabled on an interface.
Dense Mode is designed for areas where the probability of multicast clients is
relatively high, and the overhead of frequent flooding is justified. While Sparse mode
is designed for network areas, such as the Wide Area Network, where the probability
of multicast clients is low. This switch currently supports DVMRP and PIM-DM.
Vector Multicast Routing Protocol (DVMRP) and Protocol-Independent Multicasting -
Dense Mode (PIM-DM). These protocols work in conjunction with IGMP to filter and
route multicast traffic. DVMRP is a more comprehensive implementation that
maintains its own routing table, but is gradually being replacing by most network
managers with PIM, Dense Mode and Sparse Mode. PIM is a very simple protocol
that uses the routing table of the unicast routing protocol enabled on an interface.
Dense Mode is designed for areas where the probability of multicast clients is
relatively high, and the overhead of frequent flooding is justified. While Sparse mode
is designed for network areas, such as the Wide Area Network, where the probability
of multicast clients is low. This switch currently supports DVMRP and PIM-DM.
System Defaults
The switch’s system defaults are provided in the configuration file
“Factory_Default_Config.cfg.” To reset the switch defaults, this file should be set as
the startup configuration file (page 3-23).
“Factory_Default_Config.cfg.” To reset the switch defaults, this file should be set as
the startup configuration file (page 3-23).
The following table lists some of the basic system defaults.
Table 1-2 System Defaults
Function
Parameter
Default
Console Port
Connection
Baud Rate
auto
Data bits
8
Stop bits
1
Parity
none
Local Console Timeout
0 (disabled)
Authentication
Privileged Exec Level
Username “admin”
Password “admin”
Normal Exec Level
Username “guest”
Password “guest”
Enable Privileged Exec from Normal
Exec Level
Password “super”
RADIUS Authentication
Disabled
TACACS Authentication
Disabled
802.1x Port Authentication
Disabled
HTTPS
Enabled
SSH
Disabled
Port Security
Disabled
IP Filtering
Disabled