Enterasys ssr-atm29-02 ユーザーガイド
Chapter 6: Configuring SSR Bridging
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CoreWatch Users Guide
Configuring the Bridging Mode of Ports
You can configure ports to use either of the following bridging modes. Each port has a
Layer-2 lookup table where MAC address or flows are stored. A port’s bridging mode
determines the contents of each Layer-2 table entry. A port can use only one type of
bridging at a time.
Layer-2 lookup table where MAC address or flows are stored. A port’s bridging mode
determines the contents of each Layer-2 table entry. A port can use only one type of
bridging at a time.
•
Flow-based bridging
If a port is configured for flow-based bridging, each Layer-2 table entry contains
entries consisting of a source MAC address, destination MAC address, and VLAN ID.
entries consisting of a source MAC address, destination MAC address, and VLAN ID.
•
Address-based bridging
If a port is configured for address-based bridging (the default), each Layer-2 table entry
contains a unique destination MAC address and VLAN ID.
contains a unique destination MAC address and VLAN ID.
Suppose that a port on the SSR is connected to a hub that is connected to three
workstations, A, B, and C. If each workstation is talking to one another and sending
broadcast traffic, the Layer-2 table on the SSR’s port would contain the following entries
for the workstations (assume that the VLAN ID is 1 for all entries):
workstations, A, B, and C. If each workstation is talking to one another and sending
broadcast traffic, the Layer-2 table on the SSR’s port would contain the following entries
for the workstations (assume that the VLAN ID is 1 for all entries):
Table 9. Bridging Modes
Port Configuration
Entries
Flow-based bridging
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MAC addresses A->B
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MAC addresses A->C
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MAC addresses B->A
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MAC addresses B->C
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MAC addresses C->A
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MAC addresses C->B
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MAC addresses A->broadcast
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MAC addresses B->broadcast
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MAC addresses C->broadcast
Address-based bridging
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MAC address A
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MAC address B
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MAC address C
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MAC broadcast address