3Com 3C13636 Configuration Manual page 650

3Com Router 3000 Ethernet Family
Configuration Guide
Table 5-9 Configure the LSP packet transmission interval
Set LSP packet transmission interval on
the interface, measured in milliseconds.
Restore
transmission interval on the interface
By default, the LSP packet is transmitted via the interface every 33 millisecond.
IV. Configuring 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.
Table 5-10 Set LSP packet retransmission interval
Set the retransmission interval of the
LSP packet over p2p links
Restore
interval of the LSP packet over p2p links
By default, the LSP packet is transmitted every 5 seconds over the p2p link.
V. Specifying the ratio of holdingtime to Hello interval
The IS-IS protocol maintains the adjacency among routers by transmitting/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 as invalid. The
waiting time is the Holddown time of IS-IS.
In IS-IS, the Holddown time is adjusted by setting the number of Hello messages, that
is, the adjacent router will be regarded as invalid if the number of continuously received
Hello messages does not reach the configured number.
Table 5-11 Specify the ratio of holding time to Hello interval
Specify the ratio of holding time to Hello
interval
Restore the default setting
Operation
the default LSP
Operation
the default retransmission
Operation
3Com Corporation
Chapter 5 Integrated IS-IS Configuration
isis timer lsp time
packet
undo isis timer lsp
isis timer retransmit seconds
undo isis timer retransmit
isis timer holding-multiplier value
[ level-1 | level-2 ]
undo isis timer holding-multiplier
[ level-1 | level-2 ]
5-11
Command
Command
Command