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62 Chapter 4 Managing the Passport 8683POS Module
209564-A
5 Select the SonetClockSource, either line or internal.
If two Passport POS Modules are operating directly (that is, connected back to
back, without any intervening Sonet equipment), one port must provide the
clock source. Set the clock source of one port to internal, and the opposite port
must be set to line.
6 Select other SONET parameters.
7 Click Apply.
8 Re-enable the port as described in “Enabling or disabling a port” on page 59.
Configuring bridging
The Passport 8683POS Module is configured for bridging by default. The
configuration is set for bridging between two Passport 8683POS Modules with
one default VLAN. The Bridge Control Protocol (BCP) is enabled on the Passport
8683POS Module by default.
You can also configure bridging for the Passport 8683POS Module for connection
to other POS-capable devices.
Note: When the POS link is enabled after a parameter change or a
chassis reset, some superfluous traffic may initially be sent out of POS
ports before any LCP packets go out. This is normal.