Configuring The Drb Priority Of A Trill Port; Setting The Link Cost For A Trill Port - H3C S12500-X Series Configuration Manual

Configuring the DRB priority of a TRILL port

On a broadcast network, TRILL must elect a DRB. An RB with a higher DRB priority is preferred in
DRB election. When two RBs have the same DRB priority, the RB with a higher MAC address takes
precedence.
To configure the DRB priority of a TRILL port:
Step
Enter system view.
1.
Enter Layer 2 Ethernet
2.
or aggregate interface
view.
Configure the DRB
3.
priority of the TRILL
port.

Setting the link cost for a TRILL port

The link cost for a TRILL port can be automatically calculated by the system or manually set.
•
A manually set link cost takes precedence over a calculated link cost.
•
If no link cost is set and automatic link cost calculation is enabled, the calculated link cost takes
effect.
•
If no link cost is set and automatic link cost calculation is disabled, the default link cost of 2000
is used.
If you manually set the link cost for a TRILL port, make sure its peer TRILL port uses the same link
cost.
The system automatically calculates the link cost of a TRILL port by using the following formula: link
cost = 20000000000000/interface baud rate.
To set the link cost for a TRILL port:
Step
Enter system view.
1.
Enter TRILL view.
2.
Enable automatic link cost
3.
calculation for TRILL ports.
Return to system view.
4.
Enter Layer 2 Ethernet
5.
interface view or Layer 2
aggregate interface view.
Set the link cost for the TRILL
6.
port.
Command
system-view
interface interface-type
interface-number
trill drb-priority priority
Command
system-view
trill
auto-cost enable
quit
interface interface-type
interface-number
trill cost cost-value
12
Remarks
N/A
N/A
By default, the DRB priority of a TRILL port
is 64.
Remarks
N/A
N/A
By default, automatic link cost
calculation is enabled for TRILL
ports.
N/A
N/A
The default setting is 2000.