Procedure - H3C S6800 Series Configuration Manual

Hello multiplier. The RB advertises the adjacency holding time to neighbors through Hello frames. If
a neighbor does not receive any Hello frame from the RB within the adjacency holding time, it
removes the TRILL adjacency with the RB.
AVF inhibition time
As the AVF of a VLAN, the RB guarantees that frames of the VLAN enter and leave a broadcast
network through the same port. Other RBs on the broadcast network do not process frames from the
VLAN.
To avoid loops, the RB suppresses its AVF role during the inhibition time when one of the following
conditions exists:
•
The RB detects a root bridge change on the broadcast network.
•
Other RBs advertise a different AVF for the VLAN.
When the inhibition time expires, the RB restores its AVF role if it is still the AVF of the VLAN.
CSNP interval
On a broadcast network, the RB advertises CSNPs at the CSNP interval to perform network-wide
LSDB synchronization if it is elected as the DRB. A CSNP records all LSP digests of the RB's local
LSDB. A remote RB compares a received CSNP against its local LSDB to verify whether some LSPs
are aged out or missing. If the CSNP has an LSP digest that the local LSDB does not have, the
remote RB sends a PSNP packet to request the LSP.

Procedure

1. Enter system view.
system-view
2. Enter Layer 2 Ethernet or aggregate interface view.
interface interface-type interface-number
3. Configure the Hello interval.
trill timer hello interval
The default setting is 10 seconds.
This command sets the Hello interval for an RB. The Hello interval of a DRB is 1/3 of the Hello
interval of an RB. This allows for DRB failures to be quickly detected.
4. Configure the Hello multiplier.
trill timer holding-multiplier count
The default setting is 3.
5. Configure the AVF inhibition time.
trill timer avf-inhibited time
The default setting is 30 seconds.
6. Configure the CSNP interval.
trill timer csnp interval
The default setting is 10 seconds.
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