3Com Switch 7750 Configuration Guide

IS-IS Basic Configuration 339
Configuring the CSNP packets sending interval
CSNP packets are the packets sent with the synchronous LSDB by the DIS on a
broadcast network. CSNP packets are broadcast periodically on a broadcast
network. You can configure the interval of sending CSNP packets.
Configuring the LSP sending interval
LSPs are used to advertise link state records within an area.
Configuring the LSP retransmitting interval on an interface
On a point-to-point link, if there is no response for the sent LSP, the LSP is
considered lost or discarded and the sending router retransmits the LSP.
Define the Hello packet
sending interval, in
seconds
isis timer hello seconds [ level-1 |
level-2 ]
Optional
The default Hello packets
sending interval is 10
seconds.
Table 268 Configure the CSNP packets sending interval
Operation Command Description
Enter system view system-view -
Enter interface view interface interface-type
interface-number
Required
Configure the CSNP
packets sending interval,
in seconds
isis timer csnp seconds [ level-1 |
level-2 ]
Optional
The default CSNP packets
sending interval is 10
seconds.
Table 269 Configure the LSP sending interval
Operation Command Description
Enter system view system-view -
Enter interface view interface interface-type
interface-number
Required
Configure the LSP
sending interval, in
milliseconds
isis timer lsp time Optional
The default LSP sending
interval is 33 milliseconds.
Table 270 Configure LSP retransmitting interval
Operation Command Description
Enter system view system-view -
Enter interface view interface interface-type
interface-number
Required
Configure the LSP
retransmitting interval on
a point-to-point link<
isis timer retransmit seconds Optional
By default, LSPs are
retransmitted on a
point-to-point link every five
seconds.
Table 267 Configure the Hello interval
Operation Command Description