Switch 7700 Configuration Guide, v2

106 CHAPTER 5: ROUTING PROTOCOL OPERATION
If the level is not specified, it defaults to setting CSNP packet broadcast interval for
Level-1.
By default, the CSNP packet is transmitted by interface every 10 second.
Setting the LSP Packet Interval
LSP carries the link state records for propagation throughout the area.
Perform the following configurations in VLAN interface view..
By default, the LSP packet is transmitted by the interface every 33 milliseconds.
Setting the 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 configurations in VLAN interface view..
By default, the LSP packet is transmitted every 5 seconds over the p2p link.
Setting the Hello Failure Interval
The IS-IS protocol maintains the adjacency among routers by transmitting and
receiving the Hello packets. If the local router does not receive Hello packets in a
time interval transmitted by the peer continuously, it considers the adjacent router
to be down.
Perform the following configurations in VLAN interface view..
By default, the Hello failure interval is 30 seconds. If the level is not specified, it
defaults to setting the Hello packet failure interval of Level-1.
Tab le 57 Set the LSP Packet 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
Tab le 58 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
Tab le 59 Set the Hello Failure Interval on the Interface
Operation Command
Set the Hello failure interval on the interface isis timer dead seconds [ level-1 | level-2 ]
Restore the default Hello failure interval on
the interface
undo isis timer dead [ level-1 | level-2 ]