H3C Technologies H3C S6800 Series Switches - Manual (Page 15)

8
Tasks at a glance
(Optional.) Configuring TRILL LSP parameters and features
(Optional.) Setting the SPF algorithm parameters
(Optional.) Configuring TRILL distribution trees
(Optional.) Configuring TRILL ECMP routes
(Optional.) Enabling incremental flush for TRILL multicast routing entries
(Optional.) Configuring a TRILL VR
(Optional.) Permitting a non-TRILL device to learn the MAC address of the TRILL VR
(Optional.) Enabling MAC address retaining on TRILL ports
(Optional.) Enabling logging of TRILL neighbor changes
(Optional.) Configuring SNMP for TRILL
(Optional.) Enabling TRILL to forward traffic from EVB S-channels
(Optional.) Configuring TRILL GR
(Optional.) Associating a TRILL port with a track entry
Enabling TRILL
After you enable TRILL on a port, TRILL can operate correctly by using default settings. A port with TRILL
enabled is called a TRILL port.
Configuration restrictions and guidelines
When you enable TRILL, follow these guidelines:
• To enable TRILL on a port, first enable TRILL globally.
• Enable or disable TRILL on all ports in a VLAN, so that the ports in a VLAN have the same TRILL
status (enabled or disabled).
• Do not enable both TRILL and EVB on a port. If the trill evb-support command is not executed on an
EVB-enabled port, make sure the allowed VLANs of the port do not overlap with those of a
TRILL-enabled port. For more information about EVB, see EVB Configuration Guide.
• When you set up a TRILL network, avoid the case that multiple TRILL neighbors are established for
one RB port. When you plan a network, avoid the networks shown in
Figure 6 and Figure 7 .
{
Figure 6 shows a typical network where two TRILL neighbors are established for the same port
of an RB.
{
In Figure 7 , because TRILL is not enabled on the port connecting RB 2 to RB 3, the port will
transparently transmit the TRILL Hello frames from RB 3. As a result, two TRILL neighbors are
established for the port connecting RB 1 to RB 2.