H3C Technologies H3C S12500-X Series Switches - Manual (Page 12)

6
Enabling TRILL
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. The allowed VLAN list of a TRILL-enabled port cannot
overlap with that of an EVB-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.
For example,
Figure 4 shows a typical network where two TRILL neighbors are established for the same
port of an RB.
In
Figure 5 , 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.
When you plan a network, avoid the networks shown in
Figure 4 and Figure 5 .
Figure 4 Two TRILL neighbors are established for a port (1)
Figure 5 Two TRILL neighbors are established for a port (2)
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."
To enable TRILL:
Step Command Remarks
1. Enter system view. system-view N/A
Traditional Ethernet
switch
RB 1
RB 2 RB 3
TRILL enabled port