3Com Switch 8800 Configuration Guide
Chapter 20 Integrated IS-IS Configuration
20-17
Table 20-18
Set the LSP packet transmission interval
Operation
Command
Set LSP packet interval on the interface, measured in
milliseconds.
isis timer lsp time
Restore the default LSP packet interval on the interface
undo isis timer lsp
By default, the LSP packet is transmitted via the interface every 33 milliseconds.
IV. Setting LSP packet retransmission interval
Over a
p2p
link, if the local end does not receive the response within a period of time
after it sends an LSP packet, it considers that the originally transmitted LSP packet has
been lost or dropped. In order to guarantee the transmission reliability, the local router
will retransmit the original LSP packet.
Perform the following configuration in interface view.
Table 20-19
Set LSP packet retransmission interval
Operation
Command
Set the retransmission interval of the
LSP packet over p2p links
isis timer retransmit seconds
Restore the default retransmission
interval of the LSP packet over p2p links
undo isis timer retransmit
By default, the LSP packet is transmitted every five seconds over the
p2p
link.
V. Configuringnumber of invalid Hello packets for the interface
The router maintains the adjacency by sending/receiving Hello packets. When
receiving no Hello packets from the peer within a time interval, the local router regards
the neighbors are invalid. The time interval is called Holddown time for the IS-IS.
Setting invalid number of Hello packets can adjust the Holddown time in the IS-IS. That
is to say, after continuously receiving no specified number of Hello packets, the router
regards the neighbors are invalid.
Table 20-20
Set number of invalid Hello packets for the interface
Operation
Command
Set the number of invalid
Hello packets
isis timer holding-multiplier
value
[
level-1
|
level-2
]
Restore the default setting
undo isis timer holding-multiplier
[
level-1
|
level-2
]
