Configuring Trill Timers; Configuring Trill Lsp Parameters And Features; Setting Trill Lsp Parameters - H3C S5830V2 Series Configuration Manual

Configuring TRILL timers

You can configure the following TRILL timers:
•
Hello interval and Hello multiplier—The RB advertises Hello frames at the Hello interval to
maintain a TRILL adjacency. The shorter the Hello interval, the faster the network convergence.
However, a shorter Hello interval consumes more system resources. The adjacency holding
time is obtained by multiplying the Hello interval by the 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.
To configure TRILL timers:
Step
26. Enter system view.
27. Enter Layer 2 Ethernet
or aggregate interface
view.
28. Configure the Hello
interval.
29. Configure the Hello
multiplier.
30. Configure the AVF
inhibition time.
31. Configure the CSNP
interval.

Configuring TRILL LSP parameters and features

Setting TRILL LSP parameters

You can set the following LSP parameters:
Command
system-view
interface interface-type
interface-number
trill timer hello interval
trill timer holding-multiplier
count
trill timer avf-inhibited time
trill timer csnp interval
13
Remarks
N/A
N/A
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.
The default setting is 3.
The default setting is 30 seconds.
The default setting is 10 seconds.