Cisco Systems 3750E 用户手册
11-12
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02
Chapter 11 Configuring Interface Characteristics
Understanding Interface Types
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The routing function can be enabled on all SVIs and routed ports. The switch routes only IP traffic.
When IP routing protocol parameters and address configuration are added to an SVI or routed port,
any IP traffic received from these ports is routed. For more information, see
When IP routing protocol parameters and address configuration are added to an SVI or routed port,
any IP traffic received from these ports is routed. For more information, see
and
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Fallback bridging forwards traffic that the switch does not route or traffic belonging to a nonroutable
protocol, such as DECnet. Fallback bridging connects multiple VLANs into one bridge domain by
bridging between two or more SVIs or routed ports. When configuring fallback bridging, you assign
SVIs or routed ports to bridge groups with each SVI or routed port assigned to only one bridge
group. All interfaces in the same group belong to the same bridge domain. For more information,
see
protocol, such as DECnet. Fallback bridging connects multiple VLANs into one bridge domain by
bridging between two or more SVIs or routed ports. When configuring fallback bridging, you assign
SVIs or routed ports to bridge groups with each SVI or routed port assigned to only one bridge
group. All interfaces in the same group belong to the same bridge domain. For more information,
see
Ethernet Management Port
The Ethernet management port, also referred to as the Fa0 or fastethernet0 port, is a Layer 3 host port
to which you can connect a PC. You can use the Ethernet management port instead of the switch console
port for network management. When managing a switch stack, connect the PC to the Ethernet
management port on a Catalyst 3750-E stack member.
to which you can connect a PC. You can use the Ethernet management port instead of the switch console
port for network management. When managing a switch stack, connect the PC to the Ethernet
management port on a Catalyst 3750-E stack member.
When connecting a PC to the Ethernet management port, you must assign an IP address.
For a Catalyst 3560-E switch or a standalone Catalyst 3750-E switch, connect the Ethernet management
port to the PC as shown in
port to the PC as shown in
Figure 11-2
Connecting a Switch to a PC
Catalyst 3750-E-only stack, all the Ethernet management ports on the stack members are connected to a
hub to which the PC is connected. The active link is from the Ethernet management port on the stack
master (switch 2), through the hub, to the PC. If the stack master fails and a new stack master is elected,
the active link is now from the Ethernet management port on the new stack master to the PC.
hub to which the PC is connected. The active link is from the Ethernet management port on the stack
master (switch 2), through the hub, to the PC. If the stack master fails and a new stack master is elected,
the active link is now from the Ethernet management port on the new stack master to the PC.
In a mixed switch stack, only the Catalyst 3750-E stack members are connected to the PC through the
Ethernet management ports. As shown in
Ethernet management ports. As shown in
, the active link is from the stack master, a
Catalyst 3750-E switch (switch 1) to the PC. If the Catalyst 3750-E stack master fails and the elected
stack master is a Catalyst 3750 switch (switch 2), the active link can be from a Catalyst 3750-E stack
member (switch 5) to the PC.
stack master is a Catalyst 3750 switch (switch 2), the active link can be from a Catalyst 3750-E stack
member (switch 5) to the PC.
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Switch
PC
Network
cloud
Ethernet
management
port
management
port
Network
ports
ports