Configuring the ECN330-switch
262 1553-KDU 137 365 Uen D 2006-06-16
Note that the protected VLANs must be cleared prior to deleting an EAPS
Domain. To release the Protected VLANs, click the Modify Protected VLAN
button (EAPS Domain Configuration, section 6.11.2 on page 265), and
remove all of the entries in the VLAN list (EAPS Domain Protected VLAN
Configuration, section 6.11.2 on page 265).
7. Enable or disable EAPS: Before enabling a domain as described in the next
step, globally enable the EAPS function on the ECN330-switch (EAPS
Configuration, section 6.11.1 on page 264). If EAPS has not yet been
enabled or has been disabled, no EAPS domains will work.
8. Enable or disable an EAPS domain: Before an EAPS domain can work, it
must be enabled (EAPS Domain Configuration - Domain Status, section
6.11.2 on page 265). When configuration is completed and the domain is
enabled, it will start running on the ring. To stop a domain running on a ring,
it can be disabled on any node.
9. Unconfigure an EAPS ring port: To unconfigure an EAPS primary or
secondary ring port for an EAPS domain, clear the check box in the required
field (EAPS Domain Configuration - Primary Port or Secondary Port, section
6.11.2 on page 265).
10. Display EAPS status information: Refer to the EAPS Domain List to view
EAPS status information (EAPS Domain Configuration, section 6.11.2 on
page 265). The output displayed depends on whether the node is a transit
node or a master node.
Functional Description
• Setting port status on the master node: When the master node is in the
Complete state, the primary and secondary ports will be set to the
status described below. On the CVLAN, the secondary port will trap
control messages to the CPU and not forward them to any port. On
Protected VLANs, the secondary port will block all data flow except for
EAPS domain control messages.
• Setting port status on the transit node: The port on the domain ring will
periodically receive a control message. This message is copied to the
CPU and forwarded to the next port on the domain ring. When the port
on the domain ring link changes from up to down, this port will be
temporarily blocked on the Protected VLANs. This port is opened on the
Protected VLANs again only when the transit node in "pre-forwarding"
state receives a control frame instructing it to flush its bridging table and
unblock the previously blocked protected VLANs.
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