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C
ONFIGURING
Bridging overview
B
RIDGING
This chapter explains how to configure bridging on the EtherXtend. It
includes the following sections:
•
Bridging overview, page 81
•
Bridge enhancements to flood unknowns and multicasts, page 84
•
Broadcasts and bridging, page 86
•
VLANs, page 86
•
Bridging behavior for untagged, tagged, and s-tagged, page 89
•
Q-in-Q VLAN tagging, page 96
•
Advanced bridging configurations, page 97
•
COS in bridges, page 104
•
Verifying bridge settings, page 105
•
EtherXtend CO and CPE mode bridge scenarios, page 107
•
EtherXtend bridge commands, page 113
Bridges are configured with bridge add and the desired bridge type (uplink,
downlink, intralink, tls for TLS, hub, and no type for transparent). This
command creates a bridge-interface-record profile for the specified
interface and sets the default values for the profile based on the bridge type.
The bridge add command also supports uplink and downlink bridges that use
VLANs.
Refer to the Zhone CLI Reference Guide for a complete description of the
command options and syntax.
Bridging involves configuring the EtherXtend to direct traffic based on
Ethernet MAC addresses. The EtherXtend supports a variety of asymmetrical
and symmetrical bridge types which provide different methods to learn,
forward, and manipulate traffic.
•
Asymmetrical bridge types are uplink, downlink, and intralink.
–
Uplink bridge
EtherXtend User's Guide
81
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